Alfa Romeo | 33 | Technical data | Alfa Romeo 33 Technical data

models
@iSl MANUAL SUPPLEMENT
ASSISTENZA TECNICA Lj%-@j.
PA333500883300
May 1 9 8 8
Instructions for the insertion of the technical data in the binders
When inserting the updating pages in the I_Alfa33)
V O L U M E Ii binder, it is advisable to proceed as shown
in the diagram below and to follow the order indicated.
r
CONTENTS
INTRODUCTION LIST
(Elue tard)
I
R43279000004X4 (with updating list)
PA3279000BR4X4 (with updating list)
PA327900000BRK)
\
PA3279000000AC
.:.
(with updating list)
PA3279OOOOS WOO
PA327900883300
VOLUME I
L
PA 3279OOOOOOOO
VOLUME II
-
i,
D e tailed contents:
PA32790000004X4
PA3279000BR4X4
PA3279OOOOOBRK
PA3279OOOOOOAC
“iorkshop M a n u a l (Alfa] -x4] m
“ W o r k s h o p M a n u a l r-33) lm] giardinettaH
PA3279OOOOTDOO
PA327900003300
“Workshop Manual
f=E& cj{ 1.6 -ml”
“Workshop Manual- m o d e l s
3ImEl”
PA3279OOOOSWOO
“Workshop Manual m o d e l s
PA327900883300
“Workshop Manual m o d e l s
“ W o r k s h o p Mamal c-33) giardinetia”
‘*installation Instructions
[Alfa)
a
i
r conditioner”
s,pma wagam
NOTE: For correct interpretation of the issue number, refer to the following code figures:
PA Ixlx]vlvl
I
Updating progressive number (N ~0, 1, 2 . ..)
Models group according
code distinouishing
variow
anuals in the
sa: , binder
PA333500883300
May 1 9 8 8
FOREWORD
This manuals is intended f o r models
331.e-m
33
1.5 4x4
33
1.3
33
1.3 s
33
1.5 TI
33
1.7 IE
lt complements the manuals referring to ihe corresponding
33
1.7 +
( A l f a
models indicated here below:
PA32 7900000000
PA3279000004x4
PA3279OOOB R4x4
PA327900000B RK
“WORKSHOP
“WORKSHOP
“WORKSHOP
“WORKSHOP
MANUAL
MANUAL
MANUAL
MANUAL
PA3279OOOOTDOO
“WORKSHOP MANUAL
m
PA32 7900003300
“WORKSHOP MANUAL
- models m
Key to symbols:
means that the corresponding Group in thti. basic manual
(Alfa]
b
should e referred ta, for àll details not dealt with
specifically in this manual.
May 1988
II
PA333500883300
QUICK REFERENCE INDEX
[Alfa]
4
COMPLETE CAR
‘l=Gi-l
ENGINÈ MAIN MECHANICAL UNIT
‘pLiil
FUEL SYSTEM
‘G7i-j
IGNITION, STARTING, CHARGING
SYSTEM
‘pq
ENGINE C O O L I N G S Y S T E M
-IGRriLq
CLUTCH
GEARBOX
MOTION TRANSMISSION
,,
..
p-j
.’::iI: [GR.l
-pq
(Alfa33)
4
DIFFERENTIAL AND DRIVE SHAFT
ASSEMB LY
FRONT SUSPENSION
FRONT AND REAR BRAKES
REAR SUS.PENSION
GR. 25
BODY-SHEET METAL PANELS
[Alfa]
+
(
:pLJi-j
p3i-j
ELECTRICAL SYSTEM
‘.
.+5-l
STEERING SYSTEM
WHEELS AND TIRES
I
[GR.l
GR. 28
El
pGq
:[GR.J
.DOORS
pq
HOODS
pq
INTERNAL TRIMMING
[GR.1
EXTERNAL TRIMMING
[GR:l
AIR VENTILATION
\
III
May 1 9 8 8
COMPLETE CAR
CONTENTS
GENERAL VIEWS . . . . . . . . . . , . . . . . . . . . . . 00-2
TROUBLE DIAGNOSIS SAND CORRECTION
Dimensions and weights . . . . . . . . . . . . 00-3
ON IGNITION SYSTEM LE3.2 JETRONIC
M:ODEL VARIATIONS . . . . . . . . . . . . . . . . . . 00-4
(1.7 IE with catalytic converter) . . . . . . . 00-21
ELECTRIC TROUBLESHOOTING
IDENTIFICATION DATA . . . . . . . . . . . . . . . . (*)
Identification label . . . . . . . . . . . . . . . . (*)
PROCEDURE
(1.7 IE with catalytic converter) . . . . , . . 00-27
Car identification codes . . . . . . . . . . . . (*)
LIFTING AND TOWING POINT . . . . . . . . . . . (*)
INJECTION-IGNITION WIRING DIAGRAM
SPECIAL SERVICE TOOLS . . . . . . . . . .‘. . . . (*)
(1.7 IE with catalytic converter) . . . . . . . 00-35
INSTRUCTIONS FOR PRE-DELIVERY
TROUBLE DIAGNOSIS AND CORRECTION
EXECUTION AND PERIODICAL
ON INJECTION-IGNITION SYSTEM
MAINTENANCE COUPONS.. . . . . . . . . . . . . (*)
(1.7 IE without catalytic converter) . . . . OO-391
MAINTENANCE SCHEDULE . . . . . . . . . . . . 00-6
‘TROUBLESHOOTING PROCEDURE
NEW IDENTIFICATION LABEL.. . . . . . . . . . 00-1013
ON INJECTION SYSTEM
(1.7 IE without catalytic converter) . . . . 00-3516
MODEL VARIATION
(according to new identification label) 00-1014
TROUBLESHOOPING PROCEDURE
FLUIDS AND LUBRICANTS CHARTS . . . . . (*)
ON IGNITION-SYSTEM
(1.7 IE without catalytic converter) . . . . 0035113
RECOMMENDED FUEL AND LUBRICANT . 00-11
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
00-11
INJECTION-IGNITION WIRING DIAGRAM
Fluids and lubricants . . . . . . . . . . . . . . . 00-11
/’
L ’
(1.7 IE with catalytic converter) . . . . . . . OO-35/18
APPROXIMATE REFILL CAPACITIES . . . . , 00-12
COMPONENTS AND BODY MAINTENANCE (*)
ENGINE MAINTENANCE . . . . . . . . . . . . . . . 00-13
SERVICES DATA AND~SPECIFICATICNS . . 00-36
Engine m,ai,nf‘enan,ce . . . . . . . . . . . . . (*)
Basic mechanical system.. . . . . . . . . . 00-13
Componénts~ancjbody maintenance . . 00-36
-.:.
SPECIAL SERVlCETOOLS. . . . . . . . . . . . . :. . 00-37
Fuel system . . . . . . . . . . . . . . . . . . . . . . 00-13
Exhaust checking . . . . . . . . . . . . . . . . . 00-15
(*) See: “REPAIR MANUAL [Alfa]
PA327900883301
>I
VOLUMES I and II - Group 00
October 1988
GENERAL VIEW
i
l
-I
October 1988
00-2
DIMENSIONS AND WEIGHTS
8
Mode1
33,
*T
908.260
Identification number
P
Wheelbase
Front
(mm)
Rear
cp
Front
Sa
Rear
SP
Overall length
LU
(mm)
Overall width
La
fmm)
Height funladen)
H
(mm)
Min. steering radius
(mm)
Kerb weiaht
(kg)
Max. allowed gross weight
(kg)
Payload
(kg)
Max. allowed axle
gross weight
3 3 1.5 a x a
33 1.7 *
33 1.7 IE
33 1.7 *
33 1.5 TO
908.060
908.061 A
908.080
908.100
908.110
908.1OlA
908.220
908.160
908.170
908.161A
908.140
908.180~
908.120
908.200A
908.150A
2465
2455
1367
1362
1367
1397
1362
1364
1375
1364
1364
4015
4040
800
790
825
760
760
760
1612
1340
1345
1370
1345
5500
I-~
910
I
1335
970
lac.!,.
1
Front
Seating cepacity
Rear
(A) With ecological meterials for countries where antipollution regulations are
in force
(*) With 1.2 engine not marketed in all countries
[A) With ecological materials.
5350
930
I
1395
3
(kg)
(kg)
3 3 1 . 5 TI
1366
Front
Max. towing gross weight
33 1.3 s
I
I
h-4
ENGINES
WITH TURBO
COMPRESSOR
33 1.3
2470
Ca
Track
Overhang
(mm)
ENGINES
WITH ELECTRONIC
FUEL INJECTION
ENGINES
WITH TWO CARBURETORS
ENGINES
WITH ONE CARBURETOR
1355
5
800
800
900
I
1100
2
3
1010
1435
5
800
1000
I
I
1000
I
1100
MODEL VARIATION
ENGINES
WITH TWO CARBURETORS
ENGINES
WITH ONE CARBURETOR
33 1.3
33+ *
Modal
5 door saloon
Body
I
Drive
- on certification
label and
Identtflcatwn
NO.
I
L
R
908.260
-
L
R
R
L
L
R
L
R
908.060
go8,061.
/ _ ( 908.080 1 _ 1 ;;;:““‘, 1 908.1’0 / 908.220 j -
- on identification
label
Type approval
NO.
on identification
label
905AB
- on intermediate
bulkhead label
905AOO
Chasris No.
- on intermediate
bulkhead label
Serial No
Engme No.
33 1.5 axa
3 3 1 . 5 TI
33 1.3 s
- on cylinder
block label
Type and serial
NO.
Tire dimensions
Rim dimensions
(A) With ecological materials
(*) With 1.2 engine not marked in all countries
905Al H
905Al G
905A2T
905A2V
905A20
905AlO
-L30586
frofl
0000001
30587
from
0000001
30588
from
0000001
175/70 RI 3 82T
165/70 SR 13
5% J x 13”
\
MODEL VARIATION
5 DOOR STATION WAGON
Drive
- on certification
label
- on identification
label
Identification No.
- on identification
label
Type approval No.
.-8
L
R
906.600
-
T
908.600
905Al D
905Al F
905A2S
905A2U
905AlO
905A10
905A20
905A20
30587
from
0000001
30508
from
0000001
! - on intermediate
bulkhead label
Chassis
No.
-
l
- on intermediate
bulkhead label
/
Serial No
05379411
-
I
- on cylinder
block label
Engine No.
Type and serial No.
Tyres dimensions
Rim dimensions
C (A) with ecological material
30168
from
0000001
r
3oda88
0000001
165170XRl3
175170R1382T
5%Jx13
5%Jxl3
MODEL VARIATION
Mode1
Body
Drive
Identification No.
- on certification
label
- on identification
label
- on identification
label
Type approval No.
-/on intermediate
Ibulkhead label
z!
908.650
908.660
-
905A30
905A3F
905A3G
905A4A
905A30
905A30
905A30
905A40
30558
from
0000001
VM82A
from
0000001
Chassis
No.
--
-Ion intermediate
jbulkhead label
Serial No.
l
65407756
-
- on cylinder
block label
Engine No.
Type and’sérial No.
3E18
0000001
Tyre dimensions
185160R1482H
175/70iY382T
Rim dimensions
5XJx14
5%Jx13
(A) With ecological material and electronic injection engine for countries where antipollution regulations are in force
(A) With ecological material
-
APPROXIMATE~ REFILL CAPACITIES
L
_
Mode1
Component
FUEL TANK
6.5
FUEL RESERVE
With
filter (*)
(1.43)
-
6.5
(1.43)
-
6.5
(1.43)
-
6.5 (1.43)
4.57 (10.07) 5.25 (1.15)
3.6 (7.94)
4 (0.88)
3.6 (7.94)
4 (0.88)
3.6 (7.94)
4 (0.88)
3.15 (6.94)
3.5 (0.77)
3.15 (6.94)
-’
3.5 (0.77)
3.15 (6.94)
3.5 (0.77)
4.35 (9.59)
5 (1.10)
2.4 (5.29)
2.6 (0.57)
2.4 (5.29)
2.6 (0.57)’
2.4 (5.29)
2.6 (0.57)
2.4 (5.29)
2.6 (0.57)
-
-
-
0.9 (1.98)
ENGINE OIL SUMP
Without filter (*)
%
P
GEARBOX - DIFFERENTIAL OIL
REAR D!FFERENTIAL OIL
ENGINE COOLING SYSTEM
-
7.3
(1.61)
-
7.3
(1.61)
-
1
(0.22)
7.3 (1.61)
-
8
CONCENTRATE ANTIFREEZE +
QUANTITY DEPENDING ON
+
3
TEMPEFiATURÈ
-15’C (+5’F)
-2O’C (-4’F)
-35’C (-31°F)
-
2.2
2,6
3.65
(0.48)
(0.57)
(0.80)
‘-
2.2
2,6
3.65
(0.48)
(0.57)
(0.80)
-
2.2
2,6
3.65
(0.48)
(0.57)
(0.80)
-
2
(0.44)
24’64 $‘:-]
ANTIFREEZE QUANTITY READY +
FOR USE
-2O’C (-4’F)
-
7.3
(1.61)
-
7.3
(1.61)
-
7.3
(1.61)
-
8 (1.76)
(‘) The indicated quantity refers to periodical changes.
COMPLETE CAR
CHASSIS AND BODY MAINTENANCE
TECHNICAL DATA - INSPECTION AND ADJUSTMENT
Axles and suspensions
:
-1
;n
CU
tl
0
0
II
d
67
k
ô
II
m
+
a
0 Il
-. 0
0
9
CU
II
e
tl
tl
:
;
I
2
-
0
+I
a
l tl
k
2
II
0
d
II
1
I
?
II
+
-
fl
z
tl
i
II
CL
Eu
II
>
z
-
PA3335OOpOS WO 1
0
0
-
5
MAY 1 9 8 8
I
:
-.
1 MODEL VARIATION
ENGINES
WITH lW0
CARBURETORS
ENGINE WITH
TURBO COMPRESSOR
ENGINES
WITH ELECTRONIC FUEL INJECTION
I
33 1.7 *
Mode1
I
33 1.7 IE
33 7.8 TO
I
I
I
5 door saloon
Body
l
L
- on certihcatlon
label and
Identification
NO.
33 1.7 *
I
I
Ï
l
I
I
R
I
I
I
L
I
II
go8,161A ( 908.170 ( ;;;;NX;;, (
_
908.160
R
Il
I
L
II
L
R
I
R
908.150. / 905.180. /
- on identificat!on
label
- on identification
label
905A4
905A3D
905A3
l
Type approval
NO.
- on intermediate
bulkhead label
Charsis No.
- on intermediate
bulkhead label
Serial No
Engine No.
- o n cylinder
block label
Type and serial
NO.
Tire dimensions
905A40
905A30
05411704
-
A
30550
from
0000001
185/60 R1482H
Ftim dimensions
(A) With ecological materials
908.200
(*) Not including numbers go8,,50 that take the serial number AOOOOOl, as with number 908.180
05410692
~
A
-
-
-
305.58
from
0000001*
05411250
VM82A
from
00001
305.58
from
A000001
175170 RI 382T
185/60 R1482H
5% J x 14”
-
5% J x 13”
-
COMPLETE CAR
MAINTENANCE SCHEDULE
The following schedule is valid for the Italian market only
s
I
s
3
3
-
X
X
X
X
X
X
X
X
X
X
X
X
X
X
-
X
X
X
X
X
X
X
-
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
-
X
-
X
X
X
X
-
X
-
X
X
X
-
-
X
X
-
X
X
-
X
X
X
-
X
-
x
X
-
X
-
X
X
X
-
X
X
-
X
X
-
X
May 1 9 8 8
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
-
X
L-
u:
E
ï
.E
P
6
2
00-6
X
X
-
-
P
B
2
E
<u
z
E
2
L9
9
‘0
r.
X
X
X
-
ic
Y
z
8
.z
8
.k0
.-P
B"
E
2. .
L
3
;
.E
0
2
z
c
Fi
&
Ty
2
Y
I
6
X
X
"0
E
m
P,"
?
3
>
m
2
8
E
Y2
s
ü
m
0
m
yo0
5
CO
PA333500883300 /
2
2
~g
N.
~~
OPERATION
A
(1)
- ~10
20 30
- -
8
si
19
Check terwon of and if necessary replace drive belts of: alternator. coolar
pump and air~conditioner compresser (If fltted)
2
8
X
4 0 -5c
X
- -
Clean and check air filter element
24
C h e c k trghtness of au mtake syslem downstream from the air flow gaugl
(petrol Injection only)
25
Replace fuel filter (where necessary)
- -
-
x
X
X
X
X
X
-
-
X
X
X
X
X
- -
30
lnspect and clean spark plugs
31
Replace
X
X
X
-
X
X
X
spark plugs
X
Check battery electolyte level. top up. tlghten and grease termmals
32
X
-
Greasing of hood and backdoor catches
34
%
e
s
g
35
- X
-
Check underbody and body work
I
I Test vehicle
X
X
X
X
- -
X
- -
X
+tI
I
-
X
- -
X
X
X
X
X
-
X
- -
X
X
- -
X
X
X
X
X
- X
- -
X
X
X
X
X
X
X
-
X
X
-
X
X
-
X
-
X
X
- -
X
X
X
-
-PL-l I
IXI
-k-l--X
I
I
l
I
l
%-t--I
X
-
- X
X
-
X
- -
X
Lubricate door and hootybackdoor hinges. Adjust strikers. as necessarb
33
X
- -
Check and if necessary adjust ignition timing
29
X
-
- X
X
X
X
- Check exhaust emissions
X
X
- -
X
X
- -
Notes
-
-
Clean carburetor jets and crankcase ventilation systembackfwe shleld
-rl
170 18( 1 . 190 200
X
X
- -
- -
1
13(
-
- -
- -
28
-
X
X
- -
Replace air folter cartrldge
90
- -
X
- X
80
- X
X
23
60 7c l
- X
Replace drwe belt of alternator and air condltioner compresser (if fmed)
;
Km/1000
- -
I
42
X
(4)
X
X
X
(1)
A = 1500+2500 Km (621t932 mi)
(4)
Check frequently when refuelling
(2)
To be performed in any case every 6 months. Check oil level frequentlywhen refuelling
(5)
TO be performed more frequently when driving under particular stress conditions (sport driving) or on hillv roads
(3)
Check more frenquently if driving in very dust areas
(6)
TO be performed in any case every 12 months
.
COMPLETE CAR
MAINTENÀNCE S C H E D U L E
Th,e following schedule is not valid for the Italian market and for countries where antipollution
r&julatjons are in force
-
X
X
X
-
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
a=
X
X
-
X
X
X
X
X
X
X
X
X
-
X
X
X
-
X
X
X
-
X
-
X
X
-
X
X
X
X
-
X
X
X
X
X
X
X
X
X
X
X
X
X
X
-
-
X
X
-
X
X
-
X
X
-
.x
X
X
X
X
-
X
X
X
X
X
X
X
X
-
-
X
X
X
X
X
X
X
X
X
-
u
m
m
20
3
s"
t
v1
I
Li
r
5
'üm
-0
k
Y
E
6
z
May 1988
oo-7/1
PA333500883300
Km/1000
30
40
50
60
21
Replace camshaft drive belts
22
Check fuel system for leaks
23
Clean and check air filter element
24
Check tvghtness of air mtake system downstream from the air flow gauge
(petrol Inlectlo” only)
25
X
/
Il
I
Il
X
X
X
X
Replace fuel fllter (where necessary)
I
I
I
l
I
I
I
Replace air ftlter cartndge
26
I
4
X
X
Replace drive bett of alternator and air conditroner compresser (If fltted)
I
8
X
X
27
Clean carburetor lets and crankcase ventllatlon systembackflre shleld
28
Check exhaust emlssions
X
X
X
X
X
X
X
X
X
X
X
29
Check and if necessary adjust Ignition timtng
X
X
X
X
X
X
X
X
X
X
X
30
Inspect and clean spark plugs
31
Replace spark plugs
32
Check battery electrolyte level, top up, tighten and grease terminala
X
X
Lubricate door and hoodbackdoor hinges. Adjust strikers, as necessary.
X
X
33
34
Check underbody and body work
35
Test vehicle
X
X
X
X
Greasing of hood and backdoor catches
x
X
X
X
X
X
X
1Il$lVIil F Il
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
X
X
I
I
I
I
I
I
I
I
1
8
I
I
I
I
I
I
I
1x1
lx1
1x1
14
1x1
1x1
1x1
1x1
1x1
I
i
l
I
I
I
l
I
I
I
I
I
I
I
I
I
I
I
x
X
X
X
X
X
X
X
X
?
(1) A =1000~1500 k m (621 t932 m i )
(4)
Check frequently when refuelling
-L
(2)
(5)
TO beperformed morefrequentlywhendriving underparticularstressconditions
(6)
TO be performed in any case every 12 months
T O be performed in any case every 6 months. Check oil level frequently
when refuelling
(3)
Notes
~~
90 100~ 110 120 130 140 150 160 170 180 190 200
X
Check tension of and If necessary replace drwe belts of; alternator. coolant
pump and air conditioner compresser (If fltted)
20
70- 80
Check more frequently if driving in very dusty areas
(sphrt driving) or on hilly roads
X
I
(4)
COMPLETE CAR
MAINTENA.NCE SCHEDULE
The following schedule is valid only for those countries where antipollution regul,ations are in force
E
32
9
X
-
X
-
X
-
-
-
X
-
-
-
X
-
-
-
-
X
X
X
X
X
X
X
X
-
X
X
X
X
X
X
X
-
X
X
X
X
X
X
-
X
X
x
X
X
X
X
X
X
X
X
X
X
X
-
X
X
-
X
X
-
X
X
X
X
X
X
X
-
X
X
X
X
X
X
X
X
X
-
X
-
X
X,
X
X
X
X
X
X
-
X
X
X
-
7
X
X
X
X
Lu
X
X
X
-
B
u
%
.3
E
5
E
n
n
5
i
il
Y
p:
6
-
i
PA333500883300
,
m
00-8
May 1 9 8 8
COMPLETE CAR
u
w
x
Ix
.u
X
-
$
X
-
X
x
i‘F- f
-
_
--_
X
X
-
X
X
-
X
-
X
-
X
-
-
X
-
-
X
-
X
X
-
X
-
X
.
X
X
X
X
-
X
X
.u
X
-
X
-
-
X
-
-
X
X
X
X
X
X
-
X
-
X
X
L
-
X
-
-
-
X
-
X
X
X
-
X
-
X
X
X
X
X
X
X
X
-
X
X
X
X
-
X
X
X
-
X
X
X
X
X
1
X
-
x
~ X
X
X
-
May 1988
PA333500883300
No.
34
OPERATION
Km11000
A
(1)
- 10 20
30 40
- -
Check sensor OI oxygen contents in exhaüsl gas
- -
35
Replace catalyst of exhaust gas
- -
,
(2)
Check oil level every 500 km and when refuelling
(7)
T O be performsd more frequently when driving under particular stress codltions
(sport driving) or on hilly roads
T O be performed in any case every 12 months
(3)
(4)
(5)
Check more frequently il driving in very dusty areas
Check frequently when refuelling
T O be performed in any case every Iwo years
(8)
T O be performed in any case every 5 years
6)
Operation relevant to emission control
(1) A= 1000+1500 K m
(6)
I
COMPLETE CAR
-
MAINTENANCE SCHEDULE
,/ ,
The present periodical maintenance schedule, for all markets, is applicable to vehicles equipped with SERVICE BOOKLET having the new
programmed maintenance.
OPERATION
ine oil and oil filter check ti
Replace oil in gearbox - differential (and rear differential in
X ( X 1 X 1 X 1
Check brake and clutch fluid levels
14
19
Check axial an’d radial play of supercharger rotor shaft and
by-pass valve (only in diesel engine vehicles)
20
Check idle r.p.m. (petrol versions)
x
?l
Check idle r.p.m. (diesel engine versions)
X
‘22
Replace exhaust gas oxygen sensor ( Lambda sensor) (only in
vehicies with catalytic converters)
23
/
Check integrity and tension of cooling liquid pump, alternator
and conditioner compresser (if installated) drive belt
x
x
x
x
1x1
I i lx1
X~
x
x
xIxI x Ix1
--lTrlx
x
x
(6)
x
x
x
x
x
X
x
x
i..
ti
PA3279Otj883301
oo-lO/l
October 1986
COMPLETE CAR
OPERATION
N.
Note
140
24
25
1 Replace timing belts
I
I
Check tightness of fuel supply circuit
Check fuel vapour emission contrai circuit (if installed)
,,
X
/XI
X
X
x
Check tightness of air supply system downstream the air flow
meter (only in fuel injection engines)
x
x
x
‘X
26
Replace fuel filter (where foreseen)
2g
Replace air filter cartridge
30
Clear flamedamper in exhaust gas recycling circuit (except in
diesel or fuel injection cars)
I
I
31 Check exhaust emission (only in vehicles with catalytic converter)
X
X
X
‘X 1
x
x
x
x
x
x
x
x
x
x
X
~X
X
33
Check spark advance (except diesel models)
33
Replace spark plugs (except diesel engines)
34
Check electric connections in engine compartment (condition
and positipn of connectors and hoods)
36
Grease dqor and hood hinges, grease hood locking catches.
(1) A = 1500 - 2500 Km
(2) Check oil level every year and when refuelling
(3) Check more frequently if driving in very dusty areas
(4) Check frequently when refuelling
October 1988
lx1
X
X
X
x
X
X
X
-
I
36 1 Test vehicle
180 200
X
26 Check air,filter cartridge
27
I
160
X
J
x
x
IxIxIxl’x
Ix 1x1 xl xl x
x/ x(xI xl
(5) TO be performed more frequently ihen drivlng particular in stress
conditions (sport drlving) or on mountain roads
(6) TO be replaced in any case every 1,2 months
(7) TO be performed in any case every 2 years
oo=s 0/2
PA327900883301
P
NEW IDENTIFICATION LABEL
/@@&
- - A L F A L A N C I A INDUSTRIALE S . P . A .
I
I
Ul2-
'6
.
1 - Homologation code
2 - Body marking
3 - Engine type mumber
4 - Base type and vehicle version
‘<.._E
HOTORE-ENGiNE
VERSIONE-VERSION
,
L
QI 1
-
N’ PER RICAfl8I
ti’ F O R SPARES
1
2
I
*
3
-
-,fl
-,5
/
5 - Serial number with relation to finished units: necessary
when ordering spare parts, for identification of production or assemply plant and as reference for introduction
of modifications.
6 Marking of correct value of smoke absorption coeffitient (for diesel engines’only).
BODY MARKING
‘8
(1) - Constructor identification code
ZAR/ ,905AOO + 0 5 4 5 5 . 7 3 7
I
,
l
(3) - Chassis serial number’
(1)
(2) - Vehicle mode1
(2).
‘.
PA3q7900883301
0040/3
October 1988
MODEL VARIATIONS
(According to E.E.C. markings adopted on new identification labels)
I
ENGINES WITH TWO CARBURETORS
ENGINES WITH ONE CARBUTEROR
33+ *
Mode1
3 3
Body
St
2
0
4
Chassis serial No:
- on service compartment
front cross member,
right side,
horizontal plane
Engine type and serial No.
- on special
rised block
on engine block,
Upper right part
flywheel side
Rim dimensions
;
.’
on identification
label
- on Sérvice compartment
front cross member,
right side,
horizantal plane.
Tyre dimensions
8
LEFT
LEFT
-
2
g
1.3 s
3
3 3
3 1.9 l-l
1.5
PXI
5 DOOR SALOON
Drive
vehicle type No.
3 3
1.3
3’) With 1.2 engine commercialised only in certain countries.
905AP
I
905Al G
I
I
LEFT
905Al H
905AZV
905AZT
/
905AOO
905AlO
905A20
05.455.737
30565
30566
:
30567
30588
0000001
0000001
0000001
0000001
165/70 SR 13
175/70 R13 62T
I
5% J x 13”
MO~DEL VARIATIONS
(Accordinb to E.E.C. marking adopted on new identification label+
ENGINES WITH TWO
CARBURETORS
ENGINES
WITH ELECTRONIC FUEL INJECTION
33 1.7 +
33 1.7 I!i
33 9.7 fi
Mode1
ENGINES WITH ’
TURBO COMPRESSOR
331.8TO
..
5 DOOR SALOON
Body
I
Drive
I
T
l
left
leftlright
leftlright
lefilright
-r
..
-
on identification
label
I
I
I
8
0
zî
- on service compartment
front cross member,
right side,
horizontal plane.
vehicle type No.
-
Chassis serial No.
I
905A3D
905A3
I
905A4
I
905A40
905A30
on service compartment
front cross member, 1
right side,
horizontal plane
05.455.737
--on
Engine type and serial No.
special
raised block
on qgine block,
Upper right part
flywheel side
Tyre dimensions
OF
2
QJ
Rim dimensions
(‘)
Excluding Nos. 908.2201908.150 which take serial No. A000001 as with No. 908.180.
305.58
from
A000001
from
0000001*
VM82A
from
00001
I
I
0
0
305.58
30550
from
0000001
185/60 RI 482H
185/60 R1482H
I
5’lz J x 14”
175170 R1382T
5% J x 13”
COMPLETE CAR
RECOMMENDED FUEL AND LUBRIC&NTS
,:,--
00-l 1
FUEL
For coke@ engine functioning the specification is for premium grade or unleaded petrol: RON 2 95.
For models 33 1~7 + and ,33
specifikations must be used:
1.7
IE
with electronic injection and catalytic convertor only unleaded petrol to the following
~
- Octane Number (Research method) R.O.N. 2 95 (for Switzerland, Sweden versions)
- Octane Number (Research method) R.O.N. 2 91 (for Australia version)
._
WARNING:
Never mneither in an emergency nor in small quantities use conventional lead petrol. TO d6 SO Will result in permanent
damage to’the exhaust gas catalyzer.
TO preuent the tank from being accidentally filled with lead petrol, the inlet filler has been designed in such a way as to
permit, the entry of only special filler spouts fitted exclusively on unleeded petrol pumps. Should the tank be filled with
even a small quantity of lead petrol, do not start the engine, but proceed to the complete emptying of the tank and the
fuel delivery system.
FLUloS AND LUBRICANTS
except:
Name
Type
,’
Application
Notes
Classification
AGIP
IP
SHELL
Engine - 01
API SF/CC
MIL L461528
CCMC G2Dl
Sint 2000
SAE lOW/40
Sintiax
SAE lOW/40
Super Plus~
Motor Oil
SAE 15W15b
Envikmental
temperature
-lS+t40%
Gearbox - 13
Differential
SAE J 306a
APIGL-5
Rotra MP
SAE 8OW190
Pontiax HD
SAE 8OW/90
Spirax HDI
SAE SOWl90
Environmental
temperature
- 30 f t 40%
Oil
May 1988
00-11
PA3335008833pO
APPROXIMATE REFILL CAPACITiES
83
~~~
Mo&is
33, x
3 3 1.3
33 1.5 a x a
3 3 1.3 5
3 3 ‘1.7 +
3 3 1 . 5 TI
3 3 1.7 IE
331.BTO
Measurement unit
,
Kg
Liters
Kg
Liters
FUEL TANK
-
50
-
50
FUEL RESERVE
-
63
Components
6,5
With filter-
PI
386
4
4.57
5,25
Without filter
(0)
3,15
3.5
4,35
5
2‘4
2,6
2,4
2,6
03
1,o
-
-
-
7,3
-
7,5
-
22
Z6
-
2
2,64
4
-
7,5
ENGINE OIL SUMP
GEARBOX - DIFFERENTIAL OIL
REAR DIFFERENTIAL OIL ( LIXU
models)
ENGINE COOLING SYSTEM
CONCENTRATE ANTIFPEEZE
QUANTITY DEPENDING ON
TEMPERATURE
- 15oc
- 20 oc
ANTIFREËZE QUANTITY READY
FOR USE
3,65
- 35°C
- 2 0 %
-
7,3
(0) The indicated quantity refers to periodical changes
(*) Not marketed in all countries with 1.2 engine.
i,.
2
,^
-
-
COMPLETE CAR
ENGINE MAINTE#NANCE ~
B e f o r e extracting the dipstick, dis-
BASIC ‘MECHANICAL
SYSTEM
1. RelFase clips which secure caver
1 to container.
2. Lift caver enough to remove cartridge without damaging sleeve 0.
3. Clean the cartridge thoroughly. by
blowing’low pressure compressed air
in the o&posite direction with respect
to the normal air flow.
0
connect the minimum oil level sensor
wiring from the stick.
CHECK AND POSSIBLE
ADJUSTMENT OF VALVE
CLEARANCE
!n
As for Alfa 33 except for the 1 . 7
engine ‘with hydrauliç tappets which
does n o t r e q u i r e any check o r
COOLING SYSTEM
Proceed as per [Alfa] except for
the table referring to antifreeze fluid
composition provided in “System
Refill”, which has to be changed as
fOllOWS. for 1.7 engines
adjuste’ment of valve clearance
”
CHEtiKING, REPLACING
AND ADJUS-kING DRIVE
BELTk
M i n i m u m out- OC
-15
side temperature (OF) (+ 5)
Alternatix and water pump control bkt,
Concentrated antifreeze Std. No.
As for &Alfa]
3681-69956
except for 1.3 - 1.5 -
1.7 engines with one carburetor where
the tension value to be measured with
I
2.2
-iO
(- 4)
-35
(-31)
2.6
3.65
(0.80)
(Imp Gal) (0.48) (0.57)
Diluting drinkable
water
I
5.1
4.7
(Imp Gal) (1.12) (1.03)
the appropriate tool is:
78+8? N(8 +9 kg)
Replzki~g timing belts with engine bn car
R e a d y - t o - u s e antifreeze Std. No.
3681-69958
I (Imp Gal) -
3.65
(0.80)
7.3
(1.61)
-
As for [Alfa), only for 1.7 engines
the pr&&dure for the, a-1
1 A i r fiker caver
2 Corrugated sleeve
modeLis tp be applied
CHANGiNG ENGINE OIL
AND ~REPLACING OIL
FILTER
CYLINDER COMPRESSION
TEST
As p,e( IAlfa except for the table
referripg to the refill capacities.which
has to’ be modified as follows:
4.
Clean the cartridge container.
5. Insert the cartridge into container
positioning t h e p r o t r u d i n g p a r t
downwards and hook the caver clips
-.
again.
As per (Alfa331 .
for 1.7 engines
ENGItiE OIL QUANTITY
~ Capaclty
FUEL SYSTEM
I
(Imp. Gal.)
Engine ;oil sump at max
li?Wl
(ci?)
Cil filte; and inner
ducts
(0.13)
Periodical change (engine oil
for sum,p and filter)
Replace the element at the recommended intervals (see: Vehicle
Maintenance Schedule).
CHECK, CLEANING AND
REPLACEMENT OF AIR
FILTER CARTRIDGE
.
FUEL~ FILTER REPLACEMENT
0.6
4.0
(0.88)
A s p e r (Alfa] e x c e p t f o r 1.7
e l e c t r o n i c i n j e c t i o n engines w h i c h
require the following procedure.
A s p& IAlfa33] exce,pt f o r 1 . 7
electronic i n j e c t i o n engines w h i c h
require the following procedure.
I
PA~335Q0883300
I
do-13
May 1988
COMPLETE CAR
1. U n s c r e w t u b e s @ and 0’ fit-
E,ffect checking as follows:
2.
Checking on circuit tightness
tings and recover the gaskets.
ProPerly’p!ug’fittings to prevent
fuel outletl
1. Circuit pressure checking
a. Disconnect fuel delivery tube @
downstream from the damper @
2. Loosen clamp @ and remove
filter @. ~
3. Remou;nt the new filter in order
that the arrow printed on filter body be
positioned towards fuel delivery direct
i
o
n
.
4. Complete the filter assembly operating in opposite order in respect to
removal.
b. Connect a gauge by means of a
T adaptor between damper @ and
tube @ previously disconnected.
c. Detach tube @ from pressure
gauge 0.
This is in order to avoid that any possible anomalies on idle rotation speed
could cause unusual readings.
a. With pressure gauge plugged, and
with engine on idle,throttlethedelivery
tube immediately downstream from
pressure gauge, de?ecting a pressure
increase up to
400 KPa
(4 bar’s; 4.1 Kg/cm*)
(do not let the pressure exceed this
v a l u e )
b. With pressure on 2.5 bars check
that fuel delivery tubes and fittings do
d.‘ Start the engine; at idle speed check
that fuel pressure value is:
not show leaks.
c . I f f u e l p r e s s u r e does not reach
this value and if no leaks are detected
280 i 320 KPa
(2.8 c 3.2 bars; 2.9 + 3.3 Kg/cm’)
check t h e filter and/or t h e p u m p
ooeration.
e. Reconnect tube @ to pressure
gauge; at idle, fuel pressure should
drop of 0.5 bars approximatively and
then rise again when throttle valve Will
open. Should thisoccur, please check
any possible tube @ depression
leaks.
CHECKING AND POSSIBLE
ACCELERATOR CONTROL
ADJUSTMENT
As for (Alfa] except for 1.7 electronic injection engines which require
the following procedure
1. Check table s l i d i n g
Checkthattheacceleratorcontrolcable
slides freelv in its sheath
2. Check table c l e a r a n c e
a . W i t h t h e a c c e l e r a t o r p e d a l rel e a s e d , check that the accelerator
pedal on control lever has an axial
clearance of G I = 1 f 2 m m .
b If necessary, proceed to adjust the
table c l e a r a n c e e x t r a c t i n g t h e
adjustement clip 0 in order to give
tbe prescribed clearance to the table,
and,reinserttheclipinthenewposition.
1 Filter sup,port clamp
2 F u e l outlet t u b e
3 Fuel inlet tube
4 F u e l filter
CHECKING &EL SUPPLY
PRESSlJliE AND’CIRCUIT
TIGHTNEh
As for [-33) except for 1.7
electronïc ~ injection engines w h i c h
require the following procedure
May 1 9 8 8
1 Depression tube
2 Fuel pressure gauge
3 Throb damper
4 Tube delivery to fuel distribution manifold
00-14
PA333500883300
COMPLETE CAR
CHECKING OF
EMMISSIONS
CHECK A!D ADJUSTMENT
OF IDLE, R.P.M. AND
EXHAUST EMISSIONS
Effect the following preliminary
checks:
a. Cleaning and replacement of air
filter cartridge.
b.lgnition system efficiency: spark
1 Acklerator table
2 Adjustment clip
3 Accelerator table sheath
/
plugs, tables, cap, frotary rotor (see
G r o u p 0 5 - transistorised ignition
without contacts).
c. Ignition timing.
”
d. Checking of accelerator control
adjustment (sec Group 04 - Checking
and accelerator control adjustment).
CAUTION
3. Cfhe,&king on maximum
throttle valve opening
a. With accelerator pedal pressed
a s fa~r as it Will go, check that the
accelerator control cam cari still rotate
by
If during engine tune up there is no
extra cooling fan available, keep
checking the therinometer and the
water temperature warning light on
dashboard and immediately suspend
testing if temperature’ goes u p ,
meaning that engine is overheating.
1 ‘Tail p i p e
2 CO-tester probe
. Gp=l i2,mm
6 . If! n o t w i t h i n s p e c i f i e d v a l u e ,
If ne’cessarv, proceed to adjustement
by acting on stop screw @ below the
accelerator pedal.
, -l
‘.. ,_,
Single carburetor models
Check idle-rpm and overall CO% as
follows:
Insert CO-tester probe @ into
1.
the tail pipe 0.
2 . Connect a n electronic tachometer’to the engine.
3. Start the workshop
g a s ex-
hauster.
4. Start the engine and warm it UP
t o n o r m a l running temperature.
adjust ~ idle-rpm just by turning
relevant idle-adjusting screw @
which~ makes it possible to change
rpm without changing CO percentage
(Carbcin monoxide).
7. Verify
that CO percentage
picked up by tester corresponds to
specifi,ed value and that engine
runs smoothly.
Allowed CO%
1.5 + 1.8
5. Now check that engine rpm is
within specified value.
Idle-rpm
900 + 1000 r.p.m.
1 Accelerator pedal
2 Stop screw
L. .,
.‘.’
1’
<.
PA333500883300
:,,
,,’
,
‘8
00-X
l
May 1988
COMPLETE CAR
If
notwithinspecifiedvalueorincaseof’
e n g i n e tune u p a f t e r e n g i n e ;
overhauling or after having cleaned or
replaced the carburetor, an adjustment
involving mixture meteringscrew 1
a n d throjtle v a l v e s c r e w 3 i s
C!il
requised. In this instance, proceed as
follows:
Double carburetor models
Check i d l i n g - r p m , CO% o n each
cylinder a n d l i n e - u p o f c a r b u r e t o r
throttle valves as follows:
B e f o r e b e g i n n i n g t h i s t e s t check
accelerator table adjustment ‘1 Refer
t o : G r o u p 0 4 - A c c e l e r a t o r Gable
Adjustment)
,( 1) RemoJe
seals from mixture
misalignment (40 mm Hg) between
cylinders of the same carburetor then it
Will b e n e c e s s a r y t o r e p l a c e t h e
carburetor.
4. Make sure that all cylinders are
functioning correctly by grounding one
spark plug at a time and checking that
theincreaseinr.p.m. isidenticalforeach
cylinder.
~
metering, screw a and from throttle valve sctew 0.
( 2 ) Tighte~n i d l i n g s c r e w @ all t h e
,way’.
(3) ,Now
act
throttle valve
on
s c r e w @ ‘and on mixture metering
screw@ till following conditions are
present: ~
Mm
750 + boa
C O %
0.5,+ 1 % t o t a l
( 4 ) Loosen
idling
adjusting
s c r e w OI ti,ll a 900 + 1 0 0 0 rpni
idling speed i$ reached.
(5) Act don
mixture
metering
screw @ till the smoothest possible
engine running is obtained, while
keeping C$I% within the prescribed
,
values.
~
~% CO
0,5 + 1
(6) F i t back i n t o p l a c e m i x t u r e
m e t e r i n g ànd’ t h r o t t l e v a l v e s c r e w
seals.
(7) If further optimizing of idle-rpm
is desired, jus? act on relevant idling
adjusting,screw @ .
1.
Insert t h e t u b e o f t h e mercury
vacuometer in the appropriate fittings.
2. Starttheengineandrunittonormal
running temperature S O that the
temperature is equal to or greater than
45oc.
3 With the gear shift in neutral, open
t h e mercury vacuometer valve and
1
Idling mixture me’tering screw
2 Idling adjusting screw
3 Throttle valve adjusting screw
May
1988#
check t h a t ‘ t h e A p v a l u e s o f t h e
m a n o m e t e r s fall w i t h i n 4 0 m m H g .
Correctanydifferencesbetweenleftand
right carburetors by acting on the
throttle valve screws. Should there be
00-l WI
1 Electronic rev counter
2 CO tester
If necessary act on the mixture metering screw of the out-of-tune cylinder
until correct functioning is obtained.
5. Adjust the engine speed to 850 1 0 0 0 r.p.m. by acting on the throttle
valve screws, c h e c k i n g t h a t t h e
m a n o m e t e r r e a d i n g s fall within the
specified values.
6. Using the CO% tester, check that
the exhaust CO emissions are 1.5 - 2.5%.
PA333500883300
COMPLETE CAR
T O obtain better CO exhaust emission
adjustment it is necessary to operate
Check idle r.p.m.
Check exhaust emission
measuring the values cylinder by
cylinder using special service tool
C, 3.0054 connected as follows:
The procedure is valid for 1.7 electronic injection engines with or without catalytic convertor.
Procedure is applicable to 1.7 electronic i n j e c t i o n engines w i t h o u t
1. C o n n e c t t h e e n g i n e t o a r e v
counter.
1 A. Raise car on lift and disconnect
exhaust manifold from cylinder
h e a d s .
2 A. Now~fit small flanges C.2.0054
with relevant gaskets and pipes for
collection, of exhaust fumes - between Bach exhaust manifold flange
and relevant fitting on cylinder
2. Connect an exhauster to the
exhaust tail-pipe.
3. Start the engine and run it to
normal running temperature (Engine
oil temperature 75-8OoC).
4. With the gears in neutral and the
ancillary devices tut out check that
t h e e n g i n e r.p.m. falls w i t h i n t h e
specified values.
heads. ~
3 A. C o n n e c t e x h a u s t m a n i f o l d
catalytic~convertor only.
After adjustment of the idle r.p.m.
following the above described procedure, ~proceed t o t h e c h e c k a n d
adjustment (if necessary) of the exhaust emissions by operating as follows.
~
1. Switch on the gas exhauster, start
the engine and run it to normal running temperature.
2. With engine on idle and using a
suitable,exhaust gas tester, check that
the percentage of CO and the quantity
of hydrocarbons are less than the
specified values.
back’ tb cylinder heads.
The other ends of the four collection
pipes emerge in the engine compartment andi being equipped with suitable pfugs, are set up to test each
cylinddr CO%.
For 1.7 electronic injection engines
with catalytic convertor.
\
Admissible CO% 0.8 - 1.7
f100
idle r.p.m. 950 _ 5.
For 1.7 electranic injection engines
idle r.p.m. 800 - 900
c.2.oo!x
5. I f t h e i d l e r.p.m. does n o t ifaIl
within these values, adjust by operating as follows:
(a) Loosen the locknut @ and turn
the screw @ until the correct r.p.m.
is obtained.
(b) Lock the locknut 0
7. Ch,eck the idle r.p.m. and if
necessary adjust it again repeating
the operations described at step 5.
8. @-set the play in the idle levers
to 1 mm by tightening the stop screws
and th’en check that the carburetors
1 Exhaust tail-pipe
2 Probe of exhaust tester
open simultaneously by acting on the
:Point where the accelerator table is
attached, ‘effecti’ng short Sharp spurts
of acceleration (1200 - 1300 r.p.m.).
3. Should the CO% be above the
admissile limit it Will be necessary to
Adjust’the stop screwsfurther toobtain
4. It Will then be necessary to check
thatidle’r.p.m.fallswithinthespecified
act on ~ the appropriate screw p9sitioned iIn the debimeter.
Perfect synchronisation of the carburetors.~
9. Close the vacuometer valves and
remove the tubing from the fittings.
PA333500883300
values850f50r.p.m.andif itdoesnot
the “ldle r.p.m. Check” Will have to be
1 Locknut
2 Idle r.p.m. adjustins screw
00-l SI2
repeated.
May 1 9 8 8
C O M P L E T E
C A R
1. D i s c o n n e c t t h e ’ w i r i n g ,of t h e
Lambda sensor.
Check of ,e#hahst emissions
T h e Nprocedure is valid for 1 . 7 elec-
2. Using the spanner A-5.021 2, unscrew the plug! 0 located at the inlet
,tronic injeckion engines with catalytic
convertor.
”
of the catalytic silencer box @
After adjustment of the idle r.p.m.
following the’ above described procedure, pr@ed t o t h e c h e c k a n d
adjustmentI (if necessary) of the exhaust emi.ssions by operating as follows.
A-5.02127 /
T h i s sempl~ified procedure is for use ”
w i t h engines e q u i p p e d w i t h F I A T
TESTER typle wiring.
3 WAY CONN,ECi’OR FOR
ing
to the total emiskons before the catalytic exhaust head shall be included
in the range’mentioned below.
5 . S h o u l d lthe C O % n o t fall within
the specified values, it Will be necessary to act on t h e a d j u s m e n t s c r e w
located iin the debimeter in the plugged
seating.‘,lt ,will t h e n b e n e c e s s a r y
to check that the idle r.p.m. falls within
the specified valupsof 900-1050 r1p.m.
and if it does ndt to follow the procedure described at the previous step.
Once the setting has been effected,
re-plugg the’seating with the apropriate seal and reconnect the lambda
470 OHVS 112 W
sensor.
3 WAY CONNECTOR FIAT TESTER
PIN C
1, W arm ~up engine
2 . Rem’otie min.,,and m a x s w i t c h e s
w i r i n g side,connectorandthe 3 w a y
connecter Of the instrument.
4 . Insert ~ the cormector of the instrument it$ the 3 tiaytroublediagnosis
‘I ,.
connecter.’
When the engine is in its normal running state a?d the lambda probe is
disconnecte~d, the value correspond-
volume % CO: 0.8 (min) to 1.5 (max)
‘Use wiring~ ir&rument No. C. 90034
illustrated ih thecircuitdiagram below:
MIN AND MAX {WITCH
4 Start the engine and check that
with the engine running on idle the
CO% and the quantity of unburned
hydrocarbons are less than the specified values.
1, Plug for sampling exhatist gas
2. Catalytic silencer box
3. Fit th’e tool C.2.0051 on thefitting
for sampling exhaust gases and connect it with tube @ to the exhaust
gas tester
5. Check the state of the LED’diode
and proceed to adjust the screw of the
potentiometer located in the plugged
seating. ?he correct setting is obtained
when the ~“ON” time of the flashing
LED is eqtial to the “OFF’ time. When
this setting h’as be&n obtained replug
the seating of,the “CO” screw.
As an alternative to the above procedure, orjerate as fol’lows.
2 Catalytic s i l e n c e r b o x
2
May
1;988
Tube connected to exhaust gas tester
00-16
PA333500883300
COMPLETE CAR
1. Put the vehicle on auto lift.
2. Working from en ine room, disconnect connectors Q
1
and @ of
lambda probe and disengage wiring
from clips.
CHECK ANiD ADJUSTMENT
T H E IDLE R.P.M.
‘For @m-l only
OF
Carry out the adjustment of the idle
r.p.mi w i t h t h e e n g i n e w a r m e d up,
the g~ears in neutral and all ancillary
devices tut out, operating as follows.
Unlock ‘the locknut and turn the
a d j u s t i n g s c r e w 0 until the specified value
9 2 0 + 960 r.p.m.
is encountered.
w
1
1 Catalytic muffler
2 Supporting split ring
1 Adjusting screw
CAkYTlC MUFFLER
REPLACEMENT
T h i s :procedure is for electronic inj e c t i o n 1 . 7 engines w i t h c a t a l y t i c
muffler only.
When Km stated on “Chart of Vehicle
Mainten:ance’ Operations” are coverecl, please proceed to replace catalytic muffler as follows:
1.
&t the vehicle on auto lift.
3. Clamp
4. Flange connecting catalytic
muffler - exhaust manifold
5 . Install a n e w c a t a l y t i c m u f f l e r
working with opposite order in respect
to removal, fitting a new gasket on
flange connecting exhaust manifold.
6. Check that, with the engine running, there are no leaks from’ p i p e
connections and that the exhaust
system is not unusually noisy
3 Working from below the vehicle,
u n s c r e w Lam,bda p r o b e 0 a n d
remove it.
LAtiBDA ;PROBE
REPLACEMENT
This procedure is valid for electronic
injection 1.7 engines with catalytic
convertor only.
At km stated on “Chart of vehicle
Maintenance Operations” replace
lambda probe as follows:
2 . Loosen clamp @ b o l t .
~
3. Unscrew the three bolts on flange
@ contiecting catalytic muffler and
exhaust manifolds.
1 Laibda p r o b e
4. On installation, spread the probe
body thread with grease R. Gori Never
Seez or Bosch 5.964.080.1005 and
tighten iifully
5. Reconnectthewiringofthelambda
4. Unscrew catalytic muffler @
from split rings @ and remove it disengaging it from rear track of exhaust
pipe.~
PA3335kJ883300
Lambda probe resistance connecter
1
2 Lanibda probe signal connecter
probe.
00-l 7
May 1 9 8 8
COMPLETE CAR
CHECK ON AIR SUPPLY
SISTEM TIGHTNESS
DOWNSTREAM FROM THE
AIR FLOW SENSOR
b. W arm engine up to normal running speed.
c. Disconnect ignition.
0
a. D i s c o n n e c t p i p e 8
from dump
v a l n
v e 9
air source to the
with a gauge connected.
This procedure is for electronic injection 1.7 engines with catalytic convertor
0nly.i
Makesurethatallpipefixingclampsare
fully,tightened
Start engine at idle r.p.m., then manually deform; pipings#and sleeve downstream from the air flow sensor
Should ,the’re be any faulty pipes with
air inlets to ‘engine undetected by
sensor, some variations of idle r.p.m.
Will take place
d . Effect a v i s u a l c h e c k . o f f u e l
system components and fittings in
order to locate leak origin.
b . Pressurize the system with
compressed air to reach a pressure of.
e. Check the whole system (connecting pipes, fittings, components) using
a gas detector.
0.0255 Kg/cm2; 254 mm HzO)
f.
Close to leak area, one Will note
a tester pointer reaction.
This test with tester must be effected
slowly in order to compensate for
T O ease’the location of any possible
leaks in the air supply system, spread
some suds on involved pipes.
TROUBLiZ?HOOTING
PROCED~URE TO CHECK FUEL
$UPPLi/ FYSTEM TIGHTNESS
and then close the connection. If one
cari’‘’ (reach the specified value, open
the compressed air supply system
and check the system tightness (with
gas deteetor).
the time delay of tester response.
_,_<9. Following leak location, follow
procedure steps d. and/or e. then
eliminatethe leakreplacingfaultycomponents or properly tightening loosen.h
ed clamps.
c. Measure pressure drop in system
(it must not iexceed
h. On completion of operation, start
the engine letting it idle run for few (
minutes and then switch ignition off.
in’ 10 minutes).
This procedure is valid for electronic
injection i -78 engines with catalytic
convertor pnly.
2.49 KPa (0.025 bars;
0.125 KPa (0.00125 bars;
0.0127 K&cm2; 12.7 mm Hz0
d.
i.
Repeat test as per steps c. and d.
to check that diagnosis is correct and
repair is efficient.
If within 10 minutes the pressure
drop exceéds this value, locate leak
spreading pipes with suds or using
gas detectorl
This procedure is to be effected when
reaching the km stated on “Chart of
Vehicle Ma,intenance Operations”,and
if the foll,owing symptoms occur:
1. At end of whole procedure, road
test for about 30 minutes and then
make a final test to be sure of system
integrity.
- P e t r o l i smell.
-
Visual signs of leaks from system
fittings and connections.
-
Effectithe procedure stated in para-
TROUBLESHQOTING
PROC.EDURE TO CHECK FUEL
VAPOUR EMISSIONS
CHECKING SYSTEM
TIGHTNESS
.graph”FuelEngine-CheckonFuel
S u p p l y ,Pressure a n d C i r c u i t
Possible causes could be:
May. 1 9 8 8 ~
i
f. Should the leak corne from fuelcap
filling union area, first replace the cap.
If after replacing cap, tightness is restored, this means that cap was faulty,
otherwise replace the union.
g. Replace faulty components or
tighten loosened clamps.
h. Repeat procedure b. and c. to
check diagnosis efficiency.
T i g h t n e s s ” - steps 1. and 2..
completing it with what follows:
a . Make’ s u r e that f i r e - f i g h t i n g
applicances are available in order tobe
able to operate safely.
e. When there are leaks, some soap
bubbles Will, appear.
- Leaks of vapour from system
components, accessories and
connections.
00-18
1. If after effecting the above mentioned process, leaks still exist, effect
diagnostic procedure to check the
supply system tightness of fuel injection system.
PA333500883300
...
COMPLETE CAR
1
Fuel vapour s&on pipe
2
3
4
D&ompression pipe for dump valve control
Air delivery pipe
‘Fu!el tank
5
6
7
Fuel vapour exhaust pipe
Compensation valve
Fuel vapour separator
a
9
10
Fiel vapour recovery pipe
Dump valve
Fuel vapour filter.
~
l
PA333500883300
00-19
May 1 9 8 8
DIAGNOSTIC AND CORRECTIVE INTERVENTIONS
~
ON LE3.2 JETRONIC
INJECTION SYSTEM
Procedures and diagrams
for electronic injection 1.7 engines with catalytic converter only,
PA 32 790084330 1
00-21
October 1988
,’
COMPLETE CAR
c
:ii
II
October 1988
1
00-22
PA327900883301
r
~
COMPLETE CAR
THE ENGINE DOES NOT START
During a start attempt, check the correct
Ch& the:presmwxo’fxoltgge
.plugs
to
Effect an electronic and functional test
Check ignition system: integrity of ignition distributor, spark plugs and associated tables.
Check the efficiençy 6f inrake, tiucts,
filter ai/ fjow sensor. rhrottle body.
PA33350b883300
00-23
May 1 9 8 8
COMPLETE CAR
THE ENGINE STARTS WITH DIFFICULTY
1
May 1 9 8 8
00-24
PA333500883300
COMPLETE CAR
IRREGULAR IDLE RPM
Check for correct air flow. throngh
Check that on a suckins ducts don’t
Effect electrical
troubleshooting from
ANObjlALIES IN ACCELERATION AND BURSTS IN RELEASING
Checkicorrect fuel system pressure and
ignition system efficiency (spark plugs,
timing; etc.).
P
Checklthat no leaks do exist in air iritake ducts
YES
Check G60 ground efficiency.
YES
Check minimum & maximum opening
No. 4 ‘of electrical troubleshooting.
PA333500883300
00-25
May 1 9 8 8
COMPLETE CAR
EXCESSIYE’FUEL CONSUMPTION
Check correqt functionality of the engine
water tempqature sensor and relevant
wiring by effpcting test No. 5 of electrical troublpshooting.
YES
Check valve clearance of engine timing.
UNCORRECT DISCHARGE EMISSIONS
Check functionality of Lambda probe by
e f f e c t i n g electrical troubleshooting
procedure.
~
Zonnect a CO-tester upstream, from
:he catalyst disconnect Lambda probe
md verify a CO value increase.
Reconnect Lambda probe and check a
CO value lqwering.
Check valve clearance, air supply
system for leaks in air intake ducts.
Check catalhst muffler.
May 1988’
00-26
COMPLETE CAR
~‘ELECTRICAL TROUBLESH00TlNG PROCEDURE
for electronic injection 1.7 engines with catalytic convektor
NOTE:
TflI6 TROUBLESHOOTING MAINLY DEALS WITH THE ELECTRICAL/ELECiRONIC DIAGNOSIS
OF SYSTEM AND SENSORS AND ACTUATORS ASSOCIATED TO IT.
&ATTHE END OFTESTTHEANOMALY SHOULDREMAIN,‘lTWILLBENECESSARYTOCHECK
biAI;N MECHANICAL DEVICES SUCH AS. VALVES, CYLINliERS, COUPLINGS TIGHTNESS OF
AIR IINTAKE DUCTSi, ETC.
.May~ 1 9 8 8
00-27
PA333500883300
Lheck fuel system pressure
- Connect a pressure gauge to fuel
circuit
- Try a prolonged starting and check
p r e s s u r e presence between 2.8
bars and 3.2 bars.
?.
NOTE:
The pump must turn for a few seFonds
even with the only key in the “MARCIA”’ running position.
F
NO
NO
Check G4 Fuse (15 Ohm)
During a starting, check +12-V on fuel
pump t e r m i n a l s .
-i
t--
c
YES
Check that negative terminal of pump is
at ground.
Check fuel filter and any possible duct
/, throttlings.
i
YES
L
Check efficiency of pressure gauge.
YES
c
YES
r(:heck electrical circuits consisting of:
Check that relay S1.2.a is energized.
c
Check circuit downstream from relay
S12a up to fuel pump, beginning from
terminal 87 of the same r,elay.
terminal 30 of
ground = 12 V
terminal 85 of
ground = 12 V
terminal 86 of
ground = 12 V
terminal 87 of
ground=12V
YES
Check that fuel pump rotates.
I
I
YES
.
Probable failure on electronic CU.
I
relay S12.b and
relay S12.b and
relay S12.b and
relay S12.b and
l
c
NO
S e a r c h f o r fauhin vehicle wiiing.
Go on with diagnosis.
r
Eliminate ground connections on pin 12
s-1 of CU connecter.
TEST No. 1
1
P
COMPLETE CAR
TEST’No. 2 - CHECKINGS ON GROUNDS (PIN 4 AND 5 OF CU)
mi
l
Set hwltimeter to 200 Ohm FS.
Check cohtinuitir between:
- pin, 4 of CU’connector and G60
gr?und;
- pin 5 of CU connecter and G60
grqund.
Check also G60 grounds functionality.
YES
TEST: No. 3 - CHECK CONNECTION TO RPM SIGNAL (CU PIN 1)
Set ~multimeter to 200 Ohm FS.
,a E l e c t r o n i c C U connecter discon-
I
I
Checb wiring continuity between pin
NO
1 of CU connecter and
and terminal
terminal 11 of
of u Restore
Restore wiring.
wiring.
ignitibn
coil.
t-d
(ES
TEST No. 4
PA333500883300
May 1 9 8 8
COMPLETE CAR
,’ TEST Ntj. 4 - CHECK ON MIN. & MAX. OPENING THROTTLE SWITCH (CU PIN 15,AND 14)
l
Set molfimeter fo 200 Ohm F.S.
Insert multimeter probes between CU
connecter pin 15 and ground.
NO
Check setting and efficiency of minimum opening switch.
Check the ~existance’of a resistance
value lower than 10 Ohm.
Press accelerator and check an infinite resietance value.
YES
T
L
i
l
Check wiring continuity between:
- black wire on S6 switch connection
and ground;
- white wire on S6 switch connection
and CU connecter pin 15.
Insert rn~ Ihi meter probes between
connector oir 1 14 and ground.
Check thr
resistance
Fully dep
check a ‘rc
10 Ohm
presence o f a n infinite
ilue.
1s the accelerator and
stance value lover than
L
NO
t
NO
Restore wiring.
-i
l
F-4
Restore wiring.
Check setting and efficiency of maximum opening switch.
I
YES
Check wiring continuity between yellow
wire on S6 switch connection and CU
connecter pin 14.
NO
J
ES
TEST No. 5
00-30
PA333500883300
,s
r
COMPLETE CAR
,-
TEST No. 5 I CHECK ON ENGINE WATER TEMPERATURE SENSOR (CU PIN 8)
l
Set~multimeter
to 20 KOhm F.S.
. Disconnect electronic CU connecter.
Check between pin 6 of CU connecpendipg on engine water temperature
as pe,r curve.
,,’
1
NO
Check wiring continuity between:
- electronic C,U connecter pin 6 and
brown wire on S7 temperature
sensor;
- G60 ground and black wire on S7
sensor connection.
I
YES
Replace S7 sensor
TEST No. 6
PA333500883300
00-31
,'
May 1 9 8 8
COMPLETE CAR
1’
8,
; TEST No! 6 - INJECTOR SYSTEM CHECKING
Check resistance between CU convector pin 3and terminal 87 of S12.a
relay.
Read from~8 to 5 Ohm.
NO
-
NO
Disconnect qecfors removmg relevant
- Replace faulty injectors.
connectors.
Measure reslstance on termmal of every
, single injecter. that Will result between I
14 and 18 Ohm.
Checkon singleconnectorsof injectors NO
that one of JWO pins be - Repairwiring fautt
connected to terminal 87 of S12.a relay:
and the other to pin 3 of CU connecter.
WIRING SIDE,
I YES
.
Y ES
~
I TEST No. 7
May
198b
00-32
PA333500883300
I
l
l
m
- Set multimeter to 20 V F.S.
~Electronic -CU ëonmector discon;
nected.
c
NO
With ignition key on RUN position,
check presence of + 12 V between
connecter pin 2 and ground.
J
L
Check wiring continuity between
Check presence of + 12 V between terS12.b relay shoe terminal 85. and
mina1 86 and S12.b relay shoe terminal
groud G60. if necessary restore
7
87.
wiring.
Check integrity of fuse No. 2.
With ignition key in RUN position check
presence of + 12 V between S12.b main
relay shoe terminal 30 and ground.
1
1
1
OYES
With ignition keyin RUNposition,check
presance of + 12Von G67 connection
pin 2. If necessary, restons wiring.
Restore wiring between S12.b relay
shoe terminal 30 and CU connecter
pin 2.
I
l
NO
Check vehicle wiring (e.g. wiring between G67 connection and G99a connection, between G99a connection and
Gl fuse holder box, integrity of fuse
No. 7 and relevant supply from starting
l block.
Check presence of +12 V between
512.6 relay shoe terminaIL 67~ -and
ground.~
c
With ignition key in RUN position
check presence of + 12 V between
CU connecter pin 7 and ground.
I
Check presence of + 12 V between:
-m G67 connection pin 3 and ground.
G67 connection pin 4 and ground.
7 Ifnecessary rester; w i r i n g .
IYES
Restore wiring bëtween pins 2 and.7
of ECU connecter.
7
NO
Replace 512 relay.
1
I
YES
TEST No. 6
I
I
I
Check vehicle wirina between positive
battej and pin 3 and4 on G67 connection
,i
‘,,
COMPLETE
~
CAR
~
1, TEST N{. 8 - CilECK ON LAMBDA PROBE (CU PIN 13)
,,
l
Conmct wiring side ‘connecter to CU.
Set multimeter to 20 V F.S.
With startect e n g i n e c h e c k t h e NC
presence :of ,12 V o n p r e h e a t l n g r e s i s t a n c e termlnals of Lambda
p r o b e .
NO
Check G4 (7.5 A) fuse integrity.
NO
- Disconriect resistance preheating B
connecter of Lambda probe.
- Set multimeter to 200 Ohm FS.
- C h e c k h e a t i n g r e s i s t a n c e functionality maa,suring a value between 3 Ohmland 20 Ohm.
- Restore wiring retative to heating
resistance
Replace Lambda probe group.
l
YES
- Set multimeter to 2 V FS.
- Takemout cap from Lambda probe
connactor (wiring side).
- With’ ivehicle warmed up and
running check between connection point of Lambda probe and
groubd~ for a voltage value betwee,n 30 mV and 1 mV.
1
I
l
I
9/ Replace Lambda probe.
‘,
- key removed.
- Disconnect CU connecter.
- Checkcontinuity between wiring
sidesconnector pin 13 and lambda
probe oonnection point.
NO
ti Restore wiring.
END OF
ELECTRIWELECTRONIC
TROUliLESHOOTING
~
If test tesults were positive, but fault
still remains, t r y r e p l a c i n g i n t h e
order:
~
-
CU!
- A i r fl+w sensor.:
0
0
-
3
4
PA333500883300
r
COMPLETE CAR
INJECTION - IGhiITION W’IRISNG l3IAGRA.M
for electronic injection 1.7 engines with catalytic convertor only
ii
I fi
IIIII
Ii
?A3i35’00883300
1
May 1 9 8 8
COMPLETE CAR
~DIAGNOSTIC AND CORRECTIVE INTERVENTIONS
ON LE3.2 JETRONIC
~
INJECTION/IGNITION S’YSTEM
Procedures and diagrams
for electronic injection 1.7 engines without catalytic converter only
PA 42 790088330 1
00-3511
October 1988
COMPLETE CAR
October 1988
00-3512
PA327900883301
THE ,ENGINE’DOES NOT START
*
Check the presence of voltage to spark plugs
YES
.]I
Effect troubleshooting procedure on injection
PAd27900883301
00.3513
October 1988
‘T,HE EN~INE ~TART wtTti BIFFICULT?
Effect troubleshooting procedures on
Check air su$plyI system for leaks In
tntake ducts or.c(ogged filter and fuel
~
WITH COLD ENGINE
,
~8 Check functiona’lity of extra air valve.
With cold engine, 2 mins. after ignition
throttle extra ‘air valve pipe and verify
that RPMs at minimum diminish noti-
Replace extra’air valve.
With hot engine, 3 mins. after ignition
throttle extra air valve pipe and verify
that RPMs at minimum diminish notiCeably.
NO
IY
l
With engine’running verify presence of
+ 12 V on connecter on wiring slde of
extra air valve.
t
l
I
YES
Check wiring continuity between:
extra air valve and G60 ground;
extra air valve and fuel pump relay
S12a
terminal
87b ,
O c t o b e r 1988
00-3514
PA 32 790088330 1~
EXCESSIVE FUEL CONSUMPTION’
IRRkGULAR IDLE RPM
lant temperature sensor and relative wirlng
Check for correct air flow through throttle
b o d y .
Check that there are no leaks in the air intake
duc+ and that the air filter is not clogged.
procedures for injection system.
YES
YES
1
Ckeck electromtector trghtness.
tien system and injection system.
YES
ANOMALIES IN ACCELERATION AND BURSTS JN RELEASING
Check correct fuel system pressure and
Effect troubleshooting procedures for ignishooting procedures for inlection system.
_III
Check that there are no leaks in the air inta-
PA 32 790088330 1
”
October 1988
COMPLETE CAR
TROUBLESHOOTING PROCEDURE ~
/’
FOR INJECTION SYSTEM ~
~
for electronic injection 1.7 engines without catalytic converte;
NOTE:
THIS TROUBLESHOOTING MAINLY DEALS WITH THE ELECTRICALIELECTROikIC DIAGNOSIS
OF TH~E SYSTEM AND SENSORS AND ACTUATORS ASSOCIATEb TO IT.
~
IF AT.~THE END OF. TESTS THE ANOMALY SHOULD REMAIN, IT WILL BE NECESSARY TO
CHEF! MAIN MECHANICAL’ DEVICES SUCH AS VALVES, CYLINDERS, COUbLINGS, TIGHTNESS OF AIR INTAKE DUCTS, ETC.
PA327900883301
00.3516
October 1988
>’
COMPLETE CAR
TEST1 No.1 - CHECK OF FUEL PUMP CONTROL
i-
‘,
NO
/Check
NO
During a starting, check + 12 V on fuel
pump terminals.
l
fuel’ system pressure.
.
Connect a pressure gauge to fuel
cir&t.
Try~a prolonged starting and check
pressure presence between 2.8 bars
and 32 bars.
NOTE: ~
The pu’mp,must turn for a few seconds
even, wjth the key in the “MARCIA” running, position.
’
Check G4 Fuse (15 A)
I
YES
YES
.
v
Check fuel filter and any possible dUCt
throttlings.
Check that negative terminal of pump is
at ground.
, YES
v
YES
.
_:,
l-
Check efficiency of pressure gauge.
i.,
- Remove key.
- Disconnect connecter of injection ECU
- Put at ground pin 12 of the same connectar.
- Rotate key to RUN position.
YES
v
‘ E S
Replace fuel-pump.
.
Check that relay S12a is energized.
-
YES
I
w
1
NO
Check circuit downstream ,from. relay
t--/ C h e c k t h a t f u e l pump rotates.
S12a up to ‘fuel pump, beginning from
terminal 87b of the same relay, and the
circuit of terminal 30 of the relay itself.
I
I
NO
v
YES
Probable failure on ECU
Go on with diagnosis.
Restore wiring.
/
4
Eliminate ground connections on
12 ECU connecter.
L
Replace relay S12a.
i
Check electrical circuits consisting of:
_
terminal 85 of relay S12b and ground
i o v
_
terminal 86 of relay S12b and ground
= 12v
NO
Restore wiring of terminals 85 and 86
of relay S12a.
1
TEST Na. 2
Ohober 1 9 8 8
00.3517
PA327900883301
COMPLETE CAR
YEST No. 2, - CHECKING OF GROUNDS (PIN 4 AND 5, OF CU)
Disconnect !Injection CU connecter.
Restore wiring between:
- pin 4 of CU connecter and G60 ground;
-D - pin 5 of CU connecter and G60 ground:
Check conti@ity petween:
- pin 4 of CU c,onnector and ground;
- pin 5 of CU connecter and ground.
Check also G60 grounds functionally.
TEST No. 3’ - CHECK CONNECTION TO RPM SIGNAL’(CU PIN 1)
~,
Disconnect Iljection CU connecter.
I
Check wiring contlnuity between pin 1 of
CU connecter’ and terminai 1 of ignition
/EOll ’
NO
Restore wiring.
w
I
‘ES
TEST No. 4
PA327900883301
00=35/8
October 1988
COMPLETE -CAR
TEST No. 4 - CHECK ON MIN. 81 MAX. THROTTLE OPENING’SWITCH (CU PIN 15 AND 14)
1)
-Fi
Set multumeter to 200 Ohm FS.
Key removed.
CU
~Dlsconnect injection electronic CU
j:
:
1
Insert multimeter probes between CU
connecter pin 15 and ground.
Check the existante of a reslstance
vajlue~lower than 10 Ohm.
Piess accelerator and check an infinlItel resistance value.
Insert multimeter probes between
connecter pin 14 and ground.
Check setting and efficiency of mini-
q?
I
1
YES
1 .‘l
I
Chech wiring continuity between:
- black wire bn S6 swifch connection
and ground.
NO
Check wiring continuity between:
white wire on S6 switch connection
and CU connecter pin 15 for interruption, short-circuit on Interference
with other tables.
NO
I
b Restore wlring.
:
b Restore wiring.
Check setting and efflciency of maxi-
Check the presence of an infinlte
resistance value.
1 Fully depress the accelerator and 1
check a resistance value lower than 10
Ohm.
I
Check wiring cxontinuity between yellow wire on S6 switch connection and
CU connecter pin 14, for interruption,
short-circuit or interference with other
1 Gables.
;ES
TEST No. 5
,00=35/9
PA327900883301
COMPLETE CAR
TEST No. 5 - CHECK OF ENGINE COOLANT TEMPERATURE SENSOR (CU PIN 8)
Set multimeter to 20 KOhm FS.
rerhoved! Key
Ciisconnect injection electronic CU
connecter.
t
:heck between pin 8 of CU connecter
ind ground, a reststance’value depenling on engindcoolant temperature as
Ier
curve
:heck wiring continuity
between:
.electronic CU connecter pin 8 and
brown wire on S7 temperature sensor;
-G60 ground and black wire on 57
sensor connection 25.
I
1
i
NO
Westore w i r i n g .
YES
Replace S7 sensor
TEST No. 6
PA32 790088330 1
oo-35/10
October 1988
r
COMPLETE CAR
TEST No. 6 - CHECK OF ELECTROINJECTORS CIRCUIT
Set multimeter to 200 Ohm F.S.
Di,sco’nnect
injection CU connecter.
Check resistance between CU connec-
Disconnect electroinjectors removing
relevant connectors.
Measure resistance on terminal of
every single injecter, that Will result
between 14 and 18 Ohm.
Check on single connectors of injec.
t o r s WIRING SIDE, that one of two
pins is connected to terminal 87a of
S12a relay and the other to pin 3 of CU
connecter.
NO
NO
Replace faulty injectors.
I --
1’
nestore wiring.
TEST No. 7
Octdber 1988
00~35111
PA327900883301
COMPLETE CAR
TEST No. 7 r ‘CHECK OF +12 V PIN 2 AiUD PIN 7 OF CU
,fLlfq
Disconnect infeqtron CU conpector.
With ‘igniiion key on RUN position,
check presence of + 12 V between CU
connectdr pin 2 and ground.
NO
+
Check Integrity of fuse NO. 2.
With ignition key in RUN position,
check presence of +12 V between
S12b main relay shoe terminal 30 and
ground.
NO
With ignition key in RUN position,
Check presence of + 12 V between termina1 88 and S12b relay shoe terminal
87.
,
Restore wiring between S12b relay
shoe terminal 30 and CU connecter
pin 2.
, Y E S
Cheik presence of + 12 V between
S12b r e l a y s h o e terminal 8 7 a n d
g r o u n d .
Restore vehicle wiring betwéen positlNO,
ve battery and S12b relay shoe termi-. 4
nal 87.
JO
I
I
I
‘Whith ignitjon key- in RUN position
‘check pr’esence of + 12 V between CU
conneotor pin ,7 and ground.
Restore wiring between pins 2 and 7 of
Check wirlng continuity between S12b
relay shoe terminal 85, and ground
GSO, if necessary restore wiring and
,: check ground G60 integrity.
’
l- J
:
I
YES
.’ ,”
Check continuity of wiring between
pin 86 relay shoe S12b and fuse box.
PA 32 790488330 1
oo-35/12
October 1988
v
COMPLETE
CAR
TROUBLESHOOTING PROCEDURi
FOR IGNITION SYSTEM
for electronic injection 1.7’engines without catalytic cbnverter
NOTE:
~ THIS TROUBLESHOOilNG PROCEDURE MAINLY DEALS’WITH THE ELECTRICALIELECTRONIC
DI:AGNOSIS OF THE SYSTEM AND SENSO’RS AND ACTUATORS ASSOCIATED TO IT.
~IF AT THE END OF TESTS THE ANOMALY SHOULD REMAIN, IT WI~LL BE NECESSARY TO
~CHECK MAIN MECHANICAL DEVICES SUCH AS VALVES, CYLINDERS, COUPLINGS, TIGHTNESS OF AIR INTAKE DUCTS, ETC.
-.
PA327900883301
October 1988
THE ENGhE DOES NOT START
l
.
Check the presence of voltage to spark
i’plugs (by attempting ignition).
..
NO
*
Set multimeter to 20 V F.S.
Key in RUN position.
Check presence of + 12 V between ignition coi1 terminal 15 and ground.
Check presence of + 12 V between ignition CU connecter pin 3 and ground.
NO
NO
Check vehicle, system functionaiity (eg:
c continuity between ignition coil terminal 15 and starting block; starting block
supply and functionality).
Restore wiring between CU (N20) conc nectar pin 3 and coi1 (AS) terminal 15.
YES
.
i
Check presence of + 12 v between ignition module (Nl) connecter pin 4 and
ground.
NO
,
Restore wiring between ignition module
(Nl) connectai pin 4 and coil (Aa) terminal 15.
YES
/ES
Set multimeter to 200 Ohm FS.
Key removed.
Check wiring continuity between ignition module (Nl) connecter pin 2 and
ground.
Check ignition distributor functionality
and integrity:
cap:
- tables;
- distribution brushes;
- Hall effect sensor.
NQ
Replace anomalous components (cap,
* tables, brushes, sensor, etc.).
YES
.
spark
and
Restore wiring.
Set multimeter to 200 Ohm F.S.
Disconnect Hall sensor connecter and
ignition CU connecter.
Check wiring continuity between:
. ignition CU connecter pin 2 and cree.
ned table braid on Hall sensor con.
nectar (wiring side).
. ignition CU pin 4 and yellow wire on
Hall sensor connecter (wiring side).
. ignition CU pin 12 and black wire on
Hall sensor connecter (wiring side).
O c t o b e r 1988
1
-I
PA 32 790088330 1
YES
NO
Restore wiring.-
Check wiring continuity (after having clisconnected ignition CU (N20) connecter
and ignition CU (Nl) connecter between:
. ignition module conneètor pin 3 and
ignition CU pin 1
- ignition CU connecter pin 13 and ignition module connecter pins 5 and 6
_ ignition module connecter pin 1 and
white wire on ignition coi1 terminal 1.
IYES
Check ignition coi1 (A6) functionality verifying values listed hereunder:
primary winding resistance: from 0.5
to 1.5 Ohm;
- secondary winding resistance: from 6
1,,YES
t o 1 2 kOhm.
l
Replace ignition coil.
J
Disconnect white wire on coi1 terminal 1
(signal for speed indicator) and check
that there is no short-circuit towards
ground.
YES
,Eventually replace ignition module (Ni)
andlor ignition CU (N20).
l
I
October
1988
I
ADVANCE ‘VARIATION CHECK
TEST No. i
If any variation exists, but outslde the
1
Connect stroboscopic gun and check:
- with cold englne advance higher than
the piescribed value;
- with bot engine, prescribed advance
value.
l
Wlth engine’ running steady disconnect
engine coolant temperature sensor conhemor (L24) and ,read advance value.
Connect to ground the brown-white wjre
of the sensor and check an advance variation with respect to that previously
~read.
NO
l
,q-iiiqq
Disconnect ignition CU connecter (N20).
Check wiring continuity between ignition CU co.nnector pin 7 and sensor
brown-white wire.
YES
.
‘8
Replace ignition CU (N20).
NO
Check sensor (L24) functionality.
- with, hot engin? read aporox.‘O Ohm
between sensor pin and ground;
,J- with,cold engine read infinite resistan~ce between sensor pin and ground.
b Replace sensor (L24).
YES
TEST No. 2
OO=
‘:O.ctober 191
J
PA32 790088330 1
Discinnect minimum and m a x i m u m
thrdttle opening switch connecter ahci
read advance value.
Short-ctrcuit pin 15 (white wire) with pin
16 (black wire) and check an advance variation with respect to thevalue previously read.
Check wiring continuity between:
. connecter pin 16 of minimum and
ximum throttle opening switch S6
ground G60.
. connecter pin 15 of minimum and
ximum throttle opening switch S6
ignition CU N20 connecter pin 6.
NO
maand
maand
1
YES
‘YES
!.
T
1
Semove short-circuit between pin 15
and pin 16.
Replace ignition CU (N20).
I
Read advance value.
Short-circuit pin 14(y@low wire) with pin
16 (black wire) and cheok an advance variatton ‘wlth respect to value previously
read.
I
I
Check wliing continuity between:
. connecter pin 14 of minimum and ma- 711 tlace ignition CU ( N20).
ximum throttle opening switch S6 and
ignition CU connecter pin 14.
YES
Chsck adjustment and efficiency of minimum mand maximum throttle opening
i1
+vibhi6.
’
PA327900883301
00=35/1:7
October
1988
I
COMPLETE CAR
~INJk.CTl~hl - IGNITION WIRl,NGi DIAGRAM
1,
for electronic injection 1.7 engines without catalytic converter only
r
PA 32 79008#3~01
i
33+
*
331.3
~~
33cl s
33
1.5 axa
33 1.5 7-I
33 1.7 IE
Features
A + B = 490 + 245 = 735 N
(50 + 25= 75 kg)
Vehicle static loading arrangement (1 j
C=490 N (50 kg)
c
Front wheel alignment
mm
A=-12Ys0
A=-12Z;s
A - - 2:';
Rear wheel alignment
mm
B = 27?$’
B = 41:‘s”
B = +33 t;s
Front wheel toeout (2) (3)
mm
Front toe-out angle
Whael rim diameter
mm
340
I
M-H=4+2
M-H = 2 f 2
a= 10
a= 10’
I
365 (4)
340
Flair wheel toc-in
a=-20’?10’
a = Oo f 25’
Front wheel camber (3)
p=-10’30
P --1055’+30
8
I
p - oo f 2 5
Rear wheel camber (3)
y = 2” t 30
Front wheel caster (3)
Steering lock (3)
6,= 27'50
6, = 29038'
Inner an&
6, = 330 45'
a2 = 35010
Load vehicle, move it upand down on suspensions a few rimes. Checking operations must be performed with vehicle fully set up
for driving.
(2)
When turning a steering side rod joint by 360’. M - H dimension changes by 2 mm (0.079 in)
(3)
These values are referred to a vehicle in nominal driving condition, i.e. with static load
(4) With rim 5 ‘/2 J x 14”
y - lOi30’
Outer angle
* Not marketed with 1.2 engine in all countries
(1)
I
‘,
,’
7,
COMPLETE CAR
_
SPECIAL SE#RVICE TOOLS
Tool number
Tool name
Refer to
page
,A.3.0156
Puller of pin from stub axle
-
18
A.4.0146
Tool for suspension height check
A.4.0149
Tool for suspension height check
l
~
;
A.4.0150
88,
A.4.0206
,
Probe for suspension height check
(to be used with A.4.0146 - A.4.0149
-
Magnetic adapter for suspension height check
(to be used with A.4.0146 - A.4.0149)
-
Magnetic adapter for suspension height check
(to be used with A.4.0146 - A.4.0149)
., ,
A.50195
Toothed wrench for locking
camshaft pulley
A.5.0212
Wrench for exhaust gas sampling plug
c.2.0051
Fitting for exhaust gas sampling
00-14
i
I
x.
PA33;3500883300
May 1988
~._....~
‘,
,,
*
ENÛINE MAIN MECHANICAL UNIT
~DRIVE UNIT REMOVAL AND
~INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . OI-2
Removal (1.7 I.E. with catalytic converter); . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
01-2
~ Installation (1.7 with catalytic converter) OI:7
Removal (1.7 I.E. without catalytic converter)
. . . . . . . . . . . . . . . . . . . . . . . . . . . 01-8
jnstallation (1.7 without catalytic con‘verter) . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-811
. Supply and adjustment . . . . . . . . . . . . . 01-811
SEPARATION AND ASSEMBLY
0F ‘THE UNITS.. . .;. . . . . . . . . . . . . . . . . . . (*)
ENGINE’DISASSEMBLY
~
. . . . . . . . . . . . . . . . 01:9
. . Preliminaries . . . . . . . . . . . . . . . . . . . . . 01-12
,:Engine unit . . . . . . . . . . . . . . . . . . . . . . . OI:12
Pistons and connecting rods . . . . . . . . (*),
cylinder heads . . . . . . . . . . . . . . . . . . . . (*)
Crankshaft . . . . . . . . . . . . . . . . . . . . . . . (*)
CHECKS A N D INSPECT~ONS . . . . . . . . . . . . 01-14
Cylinder heads and valves . . . . . . . . . . . 01-14
.
i
Precautions . . . . . . . . . . . . . . . . . . . . . . 01-14
Cylinder heads . .‘. . . . . . . . . . . . . . . . . . 01-14
Pistons and connecting rods . . . . . . . . (*)
Crankshaft . . . . .#. . . . . . . . . . . . . . . . . . (*)
Engine unit . . . . . . . . . . . . . . . . . . . . . . . 01-14
‘ENGINE LUBRICATION SYSTEM . . . . . . . . . (*)
Description . . . . . . . . . . . . . . . . . . . . . . . (*)
Oil pump . . . . . . . . . . . . . . . . . . . . . . . . . (*)
Otl filter . . . . . . . .‘. . . . . . . . . . . . . . . . . . (“1
HYDRAULIC TAPPETS . . . . . . . . . . . . . . . . . (*)
Operation description . . . . . . . . . . . . . . (*)
Differences from mechanical
tappets. . . . . . . . .‘. . . . . . . . . . . . . . . . . . (*)
General1 specifications . . . . . . . . . . . . . (*)
SERVICE DATA AND SPECIFICATIONS
(for petrol’engines only) . . . . . . . . . . . . . 01-18
‘Technical data . . . . . . . . . . . . . . . . . . . . 01-18
.Inspection and adjustment . . . . . . . . . . 01-19
General, specifications . . . . . . . . . . . . . 01-35
Tightening torques . . . . . . . . . . . . . . . . 01-35
Camshaft support . . . . . . . . . . . . . . . . . (*)
Camshaft . . . . . . . . . . . . . . . . . . . . . . . . (*)
Crankshaft . . . . . . . . . . . . . . . . . . . . . . . (*)
SERVICE DATA AND SPECIFICATIONS
(for diesel engines only) . . . . . . . . . . . . 01-36
Main and connecting rod bearings . . . (*)
Inspection and adjustment . . . . . . . . . . 01-37
Pistons and connecting rods . . . . . . . . (*)
Flywheel . . . . . . . . . . . . . . . . . . . . . . . . . (*)
General1 specifications . . . . . . . . . . . . . (*)
Technical data . . . . . . . . . . . . . . . . . . . . 01-36
Cylinder block . . . . . .,. . . . . . . . . . . . . . (*)
Ttghtening torques . . . . . . . . . . . . . . . . (*)
TROUBLE DIAGNOSIS AND
Piston - cylinder wall-fit . . . . . . . . . . . . . (*)
ENGINE ASSEMBLY . . . . . . . . . . . . . . . . . . . (*)
CORRECTIONS . . . . . . . . . . . . . . . . . . . . . . . . (*)
SPECIAL SERVICE TO,OLS . . . . . . . . . . . . . . (*)
(*) Refer to “VORKSHOP MANUAL
“VOLUME I and VOLUME II - Group 01
October 1988
ENGINE MAIN MECHANICAL UNIT
11,
,
,DRIVE U N I T REMOVAL A N D IINSTALLATION
,’
These procedures are for electronic injection ,A.7 engines
REMO:$AL
1.7 LE. with ca’talytic converter
During enghte,removal from car, it is
necessary to remove engine and gearbox - differential’as single unit. Put the
vehicle on ~the auto lift and engage
‘, first ,geas ~
WARNING: ~
Great tare dis required when dealing
with a hot engine.
,,
~~1. Preliminary operations
a. Operatimg from passenger compartment, withdraw knob from gear lever,
then remove the two protective rubber
gaiters from gear lever.
b. Remove fhe hood.
c. Workingi from inside the engine
compartment, disconnect the battery
ground table.
For followhg procedure steps, refer to
‘, hgure at pa/7e 101-3.
‘8
,’ 9. Air filter, ~airflow sensor and sleeve
removal. ~
a. Unhook air filter caver 0 and remove filter elenent.
b. Disconhect multiple connecter 0
from air flow sensor ‘0.
c. Disconnect pi e @ from oil vapour separator6 1 .
d. Disconnect #metaI, fitting @ from
sleeve a.
e. Unscreèw the three fixing screws of
air flow sensor 0 to support @I
f. Loosen s)eeve @ fixing clamp to
throttle body @ .
g. Remove air filter caver 0 complete with air fl~ow sensor 0 and sleeve
@.
,.,
h. Unsc&the three support @ fixing
nuts and bolts and remove the support
from body. ~
‘, 3., Removal ‘of spark’ plugs supply ca, ’
b l e s .
a. Disconnect high voltage tables
from spark plugs and coil.
bctober 1 9 8 8
b. Disgonnect the ignition distributor
cap @ and remove it complete with
leads from engine.
4. Removal of air a.nd fuel vapour pipes
Disengage the following pipes, disconnecting them from stated components:
. Pipes @ and @ from supply
manifold @ .
. Pipe @ from throttle body and pipe 0 from pneumatic gauge on
ignition distributor @
. Pipe 0 from metal fitting 63
. Pipe 8 from idle rpm setting fitting.
. Pi e 8 from supply manifold
630.
. Pipe 0 unscrewing fitting on
supply manifold @
5. Removal of cooling system piping
a. Unscrew and remove the coolant expansion tank plug.
b. Raise the car from beneath, referring to Figure at page,Ol-6, iemove the
right hand drain plug and then the left
hand drain plug 0 under the cycinder block and drain off the coolant; ~
screw on the plugs again after draining and relower the car.
Put a suitable conteiner under the car
to collect the coolant.
c. From the part stated, disconnect
the followin hoses and sleeves:
l Sleeve
&a from thermostat and
radiator and remove it.
l Sleeve
@ from the union on the
engine.
l
Hose @ from throttle body @ .
. Hose @ from T fitting on engine
rear side.
b. Disconnect hose 0 from pressure
w-w 8.
7. Removal of eccelerator control cable
a. Rotate the accelerator lever 8
and withdraw the pawl on control ca.
ble end. ~
b. Remove split ring and draw the accelerator table sheath from the brack e r .
6. Removal of ignitionlinjection
wiring
a: Disconnect the two Lambda proble
cpnnections8 @a and disengage table
from clamps.
b. Unscrew the two fixing screws and
remove the solenoid starters @ from
body.
c. Disconnect connection @ between injectionlignition wiring and vehicle wiring.
d: Disconnect connecter @’ from the
switch on throttle body @ .
9. Removal of supply manifold
Unscrew the three.fixing nuts to the
two supply manifold @ ends and remove it with jts relevant gaskets, complete with throttle body.
The two central nuts also fix the
engine Iqfting brackets I; on
right side the bracket supporting
the oil dipàstick is also fixed.
Suitably plug the intake manifold
on engine.
10. Removal of the clutch control hose
a. Extract the fuseholder box @.
b. Unscrew ‘the pipe fitting @ of
clutch pump and withdraw the hose
from service tank sheet.
6. Removal of fuel hoses
a. Discinnect hose @ from damper
a.
01-2
PA 32 790088330 1
ENGINE MAIN MEC~HANlCAL, UNIT
,
..
LO,dTION OF DSIVE UNIT ENGINE MOUNTINGS
As for
ENGINE CO,MPARTMENT.
LOCATION COMPONENTS
Engine 1.7 Electronlc Injection
‘i
1 Coolant delivery hose . to radiant
2, Englne Ilftlng brackets
3 Alr~flowllnjectlon CU sensor
4, Coollng system breather pipes
5, Akflow sensor fixlng screws
6 Alr!flow sensor support
7 Injection wlrlng multiple connecter
0 Throttle body swltch conneotor
9 Corrugated sleeve
10 ~Throttle body
11 ~Vacuum plpe to set pneumatlc
advancs
12 Ignltlon dlstrlbutor
* 13, Akdelivery tube to fuel vapour
flltsr
14 Metal flttlng
* 45 ~Vaouun dellvery tube for pneumatfc
~ ~advanoe control Ignltlon dlstrlbutor
PA3F7900883301
.’
16 011 vapour recovery tube
17 011 vapour
s e p a r a t o r (oil~fllllng
unlon)
15 Fuseholder box
19 Ploe of clutch control hvdraullc
sistern
* 20 Lambda probe connectlon
21 Retum oloe of coolant from
radiant‘
22 Sleevs of return coolant from
radlator
23 Pressure gauge
24 Fuel dellvery tube
25 Exoess fuel return tube
26 Damoer
27 Servobrake vacuum pipe
25 Vacuum pipe for fuel vapour fllter
* 29 Vacuum plpe for fuel pressure
_ wwe
OI-3
30 Alr supply malnfold (air Intake
box)
31 Accslerator throttle control lever
32 Supplementary air feed tubs
33 Idle regulatlon by;pass tube
34 Collant dellvery slseve to radlator
35 Connectlon between IhJeotlon
wlrlng and vshiole wlrlng
36 lnjectlon wlrlng solenold starters
37 Alr fllter oovsr
3; F$vapour fllter
,r)
r=~;~1.7 fE wlth catalytlc converter
October 1988
E N G I N E M A I N MECHANICAL UN’1-i ”
1.7 IE with catalytic converter
Il Starter energizing table
?Starter supply bablbs
3 Odometrlc sensor table
‘4 Engine compartmeht wirlng
5Ground Gable wlring
I~6’Power module on ianition
distributor
7 Engine coolant temperature
indicator table:
0 Englne coolant minimum level
sensor
table
~
9 Col1 low.voltag& table
10 Electrlc fan tables for thermal
c o n t a c t c o n s e n t
11 Foglamps cablbs
12 Horn tables’
13 Front’optlcql gioups supply tables
14 Alternatorz arid alternator
w a r n i n g Ilgot s u p p l y table
‘15 Eleotrical fan supply tables
16 Mln. level oil s8nsor table
17 E;g;;e max. oi/ pressure warning
1.7 IE without catalytic converter
19 Englne min. oil, pressure warning
table
VIEW OF Et+GiNE COMPARTMENT LOCATION OF WIRING
Octoberd988
01-4
PA327900883301
,,
r
ENGINE MAiN MECHANlCAL: UN!IT
41; aemoval of electrical tables
For folhwing’removals, refer to figure
at page’O#l-4.
12. Loosening nut of engine central
support
With reference to the following figure
loosen bolt 0 fixlng central support
0 to the body without removing it.
~
c. Remove the discharge mainfolds
@ lrecovering the gaskets and withdrawing from bottom the wirlng of
lambda probe, previously disconnected.
15. Removal of reversing light table
a. ‘Disconnect the following electrical
tables, removing them from stated
component:
9
tables 8 , from optical groups.
.
tables 0 , from foglamps con
nectors.
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l
Disconnect reversing light table 0
from gearbox switch.
16. Mechanical disconnection and removal of drive unit
tables 0 , from horns.
table 6 0, from the movable connection of engine coolant minimum level sensqr.
. low voltage tables @ from coil.
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.
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.
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tables @ , from thermal contact
of electric fan consent on racliator.
~
16 , from electric fan contables 0
r+ct,ions
dable @ , removing the pressure
mountetl connecter on alternator.
table 0, from engine collant
temperature sensor.
Gable 0, energizing the starter
from movable connection.
table’ 0, supplying the starter
~terminal.
~table @ , from engine minimum
oil pressure handcontact.
Gable 0, from engine maximum
temperature thermal contact.
iable @ , from oil level dipstick.
bround table @ unscrewing the
engine cylinder block nuts, rear sicje.
1 Boit
2 Central support
For following procedure steps, refer to
Figure at page 01-6.
13. Oil draining
(if required, as a function ofI ” ~
‘intervention to be c’arried out)
‘,
i
a. Raise the car on auto lift.
b. Unscrew cap @ and drain engine
oil. Rescrew the cap, when this operation has been com leted.
c. Unscrew cap 616 and drain gear
box-differential oil. Rescrew the cap
when this operation has been completed.
14. Removal of exhaust pipe
b.’ Release all wiring from wireblock
a@ disengage them from the engine
in’ order not to obstruct their removal.
b.1 Disc’onnect odometer table @
connection, located in service tank.
PA j2 790088330 1
a. Unscrew screws @ fixing right
and mleft semishafts to rlght and left
shafts of the dlfferential, and disengage the semishaft.
b. Unscrew to bracket attachment
screw 0’ on the engine antishock
support bracket and position a column lifter under the drive unit. This
column lifter Will be fitted with a suitable supporting bracket R.4.0156 to take part of the drive unit weight.
c. Lqosen and remove the two screws
@ ~fixing the engine front support to
cross member.
a. Disconnect mainfolds @ from engine right and left heads, unscrewing
the relevant fixing nuts.
b. Unscrew the three bolts @ connecting discharge mainfolds @ to
catalytic muffler @ and disconnectm
them recovering the gasket.
01-5
T~ TL
,RA.0156
d. Loosen and remove the remaining
screws 0 and 0 fixing the front
cross member to body.
e. Loosen bolt @ connecting front
traverse to right strut.
f. Unscrew and remove the bol; @
connecting the front cross member to
the Ileft strut @ ; then disengage the
stru~t from the cross member.
October 1988
,;
E N G I N E M A I N MECHANICAL UFflT’
8’
“,
VIEW OF UNDERPART OF VEHICLE - LOCATION OF ,COMPONENTS
1 Screws fixing cross member to body
2 Cross member to right strut connecting bolt
,3 Stabillzlng b a r
,4 Screws flxing engine front support to crossmember
5 Coolant drain plugs
6 Cross member to left strut connecting bolt
7 Cross member to body flxlng screws
8 Suspension left strut
,9 Exhaust manlfolds
10 Engine oil drain plug
11 Reverse light table
12 Muffler central silencer
* 13 Exhaust manifold-catalytic muffler fixing bolts
14 Catalytic muffler
15 Gear box differential oil drain plug
16 Constant velocity joint screws
17 Bracket screws supporting engine anti-shock supportlng bar
18 Exhaust manifold flange nuts
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(*) For models with catalytic converter, only
O c t o b e r 1988
OI-6
PA327900883301
~
r
ENGINE MAIN MECHANICAL,,UNIT
g. Unsciew and remove the two bolts
0:connectimng the front cross member t’o the left $rut @ .
h. Swing the front cross member
round as shown in the illustration to
allok the drive unit to be taken out
downwards.
1 Rear support of gearbox
2 Pin
3 Rear support securing screw
4 Bolt securing gearbox rear support
1 Boit
2 Central support
i. Unscrew and remove the two screws
fixiqg the drivce unit rear support 0
to tbe body.
1. Remove boit fixing engine central
supbort to body, unloosened at step
1 2 .
m. l!ower column lift and take the drive
uhit out from the engine comp,artment.
‘1 I’,,
b. With referdnce to figure at’ page
01.6, rotate the front crossme,mber
complet@ with stabilizing bar in mounting position and fix it with bolt @ to
strut @ then fully tighten bolts @
and 0.
c. Tighten screws 4 fixing the engine front support.
d. Tighten !he foilowing components
to !he specified torque.
h. Insert the side rod @ into support
on right side longitudinal member
@ first and
0
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Ih$T;ALLATION
11.7 IIE w;ith catalytic conv,erter
0
Tightening torques
* cro&nember an6 stabilizing
bar bïacket to body
66,5 + 83,3 N.m
(6,s + 8,5 kg.m)
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1. ereliminary Operations
CAbTiON:
Dribe unit assembly must be performe:d in such a way that the gfearboz
rear support and the engine front support are not respectively upwards and
longitudinally preloaded.
l
Screws fixing stabiliting bar
to strut
14,7 i 23,5 N.m
(1,5 + 2,4 kg.m)
Screws connecting semishaft
. differential shafts (in ‘engine
oil)
33 + 36 N.m
(3,4 + 3,7 kg.m)
2. Reinstallation of reverse light table
and of exhaust pipe
e. With reference to following figure
remove lift and loosen lower b&t @
a. Raise the drive unit wi!h the column
lif{er used for disassembly until the
centre ,support axis 0 is ai about
the halfway point of the body slot and
tighten the relevant boit 0.
PA327900883301
,
1 Ri,ghl cylinder head
2 Right side longitudinal member
3 Support
4 Side rod (engine antishock bar)
5 Front screw
6 Rear screw
vant poitit fixing it to body and’tighten
screwS 0.
g. Retighten lower nut @
01-7
a. Reconnect the reverse light table to
gearbox switch.
b. Remount exhaust mainfolds in reverse order with respect to removal,
new gaskets between mainfolds and
engine cylinder heads and between
mainfolds and catalytic muffler.
October 1988
ENGINE MAIN MECHANICAL IdIT
3. Reassembty of electrical tables
Lower the auto lift and, with reference
Nto figure on oage 01-4, reconnect elec~trical ‘cables’working in reverse order
,to that described under “Removal”
‘,step
11.
~~
~
For fol!owing procedhes steps, refer
Gto Figure 01-3.
h. Remount hood.
i. Remount the battery negative terminal.
1. Operating inside the passenger compartment refit the gear lever knob and
rubber gaiters on the gear lever.
REMOVAL
‘,4. Reassembly of, clutch control hose
,5. Reassembly of air intake manifold
;Refit inlet manifold @ on intake ma‘nifolds, fitting n~èw gaskets, then tigh:ten securingi nuts.
Mind that centr&nuts ontwo sides of
the manifold~ serve also to fix brackets
6. Completio’n of reassembly
a. Reconnect injectionlignition wiring
in reverse ‘order to that described un‘:der “Removal” 1 Step 8.
,ib. Reponnect ti-ie~ accelerator table to
‘lever ‘0 on thr,ottle’body.
c. Reconnect hoses ‘@ a n d 8 respectively to damper Q and pressure gauge 0.
d. Reconnect pipelines of engine cooling system pin reverse ordxer to that
described under “Removal”’ - Step 5.
e. Reconnect fuel vapour and air in pipelines in ‘reverse order to that described under “Removal” - Step 4.
:f. Reconnect tables’ supplying spark
#,plugs and’ reinstall the ignition distri‘butor cap ~0 .
g . Reinstall air filter caver 0 , air
flow sensor i‘0 and corrugated sleeve@ in reverse order to that described under “Removal’: - Step 2.
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1.7 IE without catalytic,converter
‘Refit hose ~@ to;clutch pump and ful“ly tighten it. ~
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During engine removal from the car, it
is necessary to remove engine and
gearbox-differential unit as a single
unit. Put the vehicle on the auto lift
and engage first gear.
Pipe @ from supply manifold @ .
Pipe @ , from throttle body and pipe 0 fro,m pneumatic gauge on
ignition distributor 0.
Pipe @ , from idle RPM setting fitt i n g .
Pipe 8 , from supply manifold @
Pipe 0 unscrewing fitting,on sypply manifold @
5. Removal of cooling circuit pipes
Operate as described at Step 5 page
01-2.
WARNING:
Great tare is required when operating
on a hot engine.
6. Removal of fuel supply hose
Operate as described at Step 6 page
01-2.
1. Preliminary operations
Operate as described at Step 1 page
o-2
For the following procedure steps re,
fer to Figure at page 01-9.
2. Air filter, air flow sensor and sleeve
removal
Operate as described at Step 2 page
01-2.
3. Removal of spark plugs supply cables
Operate as described at Step 3 page
01-2.
7. Removal, of accelerator control cable
I
Operate as described at Step 7 page
01:2.
8. Removal of: ignitionlinjection tables
a. Unscrew two screws and remove solenoid starters @ from body.
b . D i s c o n n e c t connection @ between ignitionlinjection wiring and vehicle wiring.
c. Disconnect connecter @ from
throttle body’switch @ .
9. IRemoval of supply manifold
Operate as described at Step 9 page
01-2.
4. Removal of air pipes
Disengage the following pipes, disconnecting them from stated components:
OI=8
10. Removal of clutch control hose
Operate as described at Step 10 page
01-2.
PA32 790088330 1
ENGINE MAIN :MECHANICAL UNIT
11. Removal of electrical tables
INSTALLATION
6. Completion of reassembly
1.7 IE without catalytic converter
Operatè as described at step 11 page
‘01-5 with reference to Fig. page 01-4.
1. Preliminary operations
12. ~Loosening nut of engine central
support
Operate as described at step 1’ page
01-7.
Operate as described at step 12 page
03-5.
For’following procedure steps refer to
Figure at page 01-6.
2. Reinstallation of reverse light table
and of exhaust pipe.
(if required, as a function of intervention to be carried out, operate as descr/bed at step 13 page 015).
a. Reconnect reverse light table to
gearbox switch.
b. Remount exhaust manifold operating in reverse order to removal, with
new gaskets between manifolds and
engine heads.
14.‘Removal of exhaust pipe.
3. Reassembly of electrical tables.
a. Disconnect exhaust gas manifolds
from right and left engine heads, unscrewk-rg the relevant fixing nuts 18.
b. Discqnnect exhaust pipe on vehicle
rear side unscrewing screw of connecting clip to final trunk of exhaust pipe
and remove it from elastic support.
Lower the auto lift and, with reference
to figure on page 01-4, reconnect electrical tables working in reverse order
to that described T “Removal” step 11.
13. :Oil drain’ing
Removal of ,reversing light table
Disconnect reversing light table 11
from gearbox switch.
a. R,econnect injectionlignition wiring
in reverse order to that described under !‘Removal” step 8.
b. Reconnect accelerator table to lever @ ON THROTTLE BODY.
c. Reconnect hoses @ a n d @ respectively to damper @ and pressure gauge 8.
d. Reconnect pipelines of engine cooling system in reverse order to that described under “Removal” step 5.
e. Reconnect tables supplying spark
plugs and reinstall ignition distributor
Cape 0 .
f. Reinstall air filter caver 0 , air
flow sensor 0 and corrugated sleeve G9 in reverse order to that described under “‘Removal” step 2.
g. Remount hood.
h. Remount battery negative terminal.
i. Operating inside the passenger compartment refit the gear lever knob and
rubber gaiters in the gear lever.
For following,procedure steps, refer to
Figure 07-3.
REFILLING AND
ADJUSTEMENTS
4. Reassembly of clutch control hose
a. Refill e n g i n e a n d g e a r b o x differential with type and quality of oil
recommended.
Refit hose @ to clutch pump and fully tighten it.
16.~ Mechanical disconnection and removal’ of drive unit.
‘8
5. Reassembly of air intake manifold
Operate as ‘described at step 16 page
dl-~5.
Refit inlet manifold @ on intake manifolds, fitting new gaskets, then tigiiten securing nuts.
WARNING:
Before refilling with oil, make sure
that the engine pump drain plug and
gearbox drain plug’have been screwed
back on.
Mind that the central nuts on two sides of manifold serve also fix brackets
0
OI-811
October 1988
,,s
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ENGINE MAIN MECHANICAL UNIT: ,‘~
ENGINE OIL
GEARBOX-DIFFERENTIAL OIL
Type:
Type:
AGIP Sint 2000 SAE loWl40
lb; Sintiax +A! lOWI40
SHELL Super Plus Motor Oil SAE
15w150
~
AGIP Rotra MP SAE 8OW/90
IP Pontiax HD SAE 8OW190
SHELL Spirax HD SAE 8OW/90
Quantity:
Oil quanrity for full refilling
(lump, filter and duc&):
2,4 kg
d. Bleed the clutch hydraulic system
and top up said circuit (as per Alfa 33 Group 12).
e. Start the engine and, when at normal running temperature, check correct engine idle rpm running, the correct ignition timig and CO percentage
at exhaust.
For engine tuning see Group 00 - Engine Maintenance.
b. Effect cooling system refilling with
speciasl fluid (See: Group 00 - Engine
Maintenance - Basic Mechanical SyStern).
c. Effect the setting of the accelerator
control table (see: Group 00 - Engine
Maintenance - Engine Supply).
,
pctober 1988
OI-812
PA32 790088330 1
..
2
-2
2
8
0
!i
Outer parts
1 Electroinjectors~
2 Fuel supply manifold
3 Lifting brackets
4 Supply manifold
5 Fuel puise damper
6 Fuel pressure gauge
7 Intake manifolds
6 Supplementary air solenoid valve
9 Gasket
10 Coolant temperature sender (for indicator)
11 Gasket
12 Coolant temperature sender (for CU)
13 Dipstik
14 Single contact min. oil pressure
15 Ignition distributor with power module
16 Union
17 Coolant pump
16 Front protection of drive belts
19 Water pump pulley
2 0 W a t epump
r - a l t e r n a t o r belt
21 Alternator
22 Thermostat
23 OIl filter
24 Max. engine temperature thermal contact
m
v
8+10
(0,8+1)
d '
E N G I N E M’AIN M E C H A N I C A L U N I T
Interna1 ‘ p a r t s
J5+8’
( 0 . 5 0,8)
+
(8,3
+
8,8)
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15 Valve guide
,16 Lower spring seat
‘17 Washer
19 Seal cap
19 Springs
,20 Spring seat
821 Cotters
22 cup
23 Camshaft Support
24 Camshaft ~
25 Covei
26 Gasket
27 Seal ring
26 Timing belt front caver
1 Jockey puylley
2’Timing belt
3 Right tlmin pulley
4 Timing belt rear caver
5 Englne front caver
6’ Crankshaft seal ring
7 Engine block
6, Spacer
9 Timlng Pulley
10 Water-pump-alternator pulley
11 Spacer
12 Washer
13 Valve
14 Cylinder head
O c t o b e r 1988
.
OI-10
~
PA327900883301
ENGINE MAIN MECHANICAL ,$JNIT
Interna1 parts
0T
1
2
3
4
5
6
7
8
9
10
11
12
$j33%00883300
Main bearings
Woodroff key
Thrust half-ring
Oil pump gear
Bush
Seal ring
R,ear caver
Oil vapour separatar filler inlet
Flywheel
Washer
Lock ring
Pin
,Ol-11
13
14
15
16’
17
16
19
20
21:
22
23
N.m
(k9.m)
Compression rings
Oil scraper ring
Oil p u m p
Oil sump
Engine oil drain plug
Main bearing caps
P i s t o n
Connecting rod
Connecting rod bearings
Connectini rod cap
Crankshaft
May 1 9 8 8
4. Remoie spark plugs and ignition
qlistributor.
(1) Unscrew and remove spark plugs
from cylinder heads.
(2) Loosen distributor @ securing
nut @ and withdraw distributor from
rear caver.
PRELIMINARY
OPERi+TION,S
1. Remove #drive unit from car according t8 procedures: D r i v e U n i t
Removql An4 Installation.
2. Remove Qearbox - differential unit
and clutcq uni? from engine according
t o ‘proc&d,ures: S e p a r a t i o n a n d Assemblv, of the’ Units (sec: “WORKSHOP
MANUiL c-1’ ” - Group O-l ).
,’
1
ENG$E ‘UNIT
The engin? is on the stand without inlet
m a n i f o l d #and’ with no spark plugs,
tables, a,nd d i s t r i b u t o r c a p a l r e a d y
rehoved on engine removal.
Bracket
2 DalrIper
3 Fuel pressure gauge
4 Intake manifold
5 Bracker
6 Injecter
7 F u e l supply hose
1
2
Ignition distributor
Distributbr securing nut
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5. Remoue alternator.
(1) Loosen securing bolts @ fixing
alternator @ and remove drive belt.
(2) Remove bolts and take out alterna-
,3. Sequentially remove’the followinb
parts:
- Oil filter @ &ing suitable span-
1 . Re’mpval ,of fnjection w i r i n g
(1) Di&onnect injection wiring connectors $om following components:
-
supplementary air valve
-: pow&r m o d u l e o n i g n i t i o n tem-
-
ner.
D i p s t i c k @ f o r m i n i m u m Oil
-
pressure check
T h e r m a l s w i t c h @ from right
tor (2).
(3) Unscrew screws @ and remove
b r a c k e t @ and @ .
cylinder head.
peiature
-
engine tiater temperature sensor
Imje&ors’
Disenglge viring from wire clips and
remove $iring from engine
2; Reniove fuel distribution manifold.
(1;) Unsciew fixi,ng screws from bracket
@ supporting damper @ a n d
pressure gauge @
(2) Uns,crew screws (two per side) fixing bradkefs @ which support the
fuel hose 0.
(3) Remove fuel hose disconnecting
it from fouy injectors @.
(4) Rehove four injectors @, extracting, them from thermal switches
May19i8,
,B
:
1
2
1 Oilfilter
2 Pressure switch
3 Dipstick
4 Thermal switch
3’
4
5
Bolt ~
Alternator
Screws
Bracket
Bracket
PA333500883300
OI-12
‘,’
“,
‘,
‘8,
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ENGINE MAIhI ‘MECHANICAL UNIf
9. P’ropeed as per (Alfa331 from
step 11 to end, but for step 21 “Remove Cylinder Heads”, which should
be modified as follows:
(1) Unscrew the six screws @ which
secure cylinder headsto, engine block.
(2) Remove heads ‘along with camshaft Supports and the gaskets on engine bldck.
6. Flem&e sleeve and cooling system union.
(1)L~o~enclampsfixingfollowingcool,ing s’ys’tem hoses:
- Hqse, @ connecting between
thermostat and union ‘0
- Hose 0, c o n n e c t i n g b e t w e e n
ihkrmostat’and u n i o n @
-
T!
Hdse' ,@' connecting thermos$f a,nd right manifold.
( 2 ) Rehove hose @ a n d @ .
1 Union
2 Screws
7. Remove thermostat.
Remove screw @ fixing thermostat
@ on cylinder block and remove it.
1
Screws securing heads and camshafi supports:to engine block
~CYLINDER H E A D S
Procedure is as per [=33)
t a k i n g
into account that camshaft supports
have no caver. Therefore, on head
supports disassembly, recover the oil
still present in the supports.
8,
1 Ho’se &necting thermostat-union
2 Un~ion
3 H+e connecting thermostat-union
4 Thermostat
5 Hose connecting thermostat - right mani!Ol’d
(3) $nscrew and take out screws @
‘..
fixing union m@ on cylinder block,
the,n ;reniove union.
PA3!3500883300
1 Screw
2 Thermostat
8. Remove intake manifolds
(1) Unscrew all, three nuts securing
each intake manifold and remove
them from heads with relevant
gaskets.
(2) If necessary, remove water temperature transmitters from iniake
hanifolds.
(3) If necessary, working on bench,
unscrew the two fixing screws and
r e m o v e supplementary, air solenoid
valve from right manifold.
cil-13
p.2.0226
1 Camehafl support
2 Cylinder head
May 1 9 8 8
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ENG!NE M A I N MECiiANICAL UNIT’ ;
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8’
‘,
CHECKS AND INSPECTIONS
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These procedures are for electronic injection 1.7 engines with CatalYtiC CO~ve~or CnlY
cup is free, of any trace of sizing,
CYLINDER HEADS
etching, or unusual wear.
WARNING~
AND VALVES
,Procedures-described for (Alfa]
2. Check fhat the cups Upper plane
are stik ,valid( except for what folAs per (A-33) except
on which cams work is free of unusual
‘lows.
~
wear.
,For technfcal data of 1.7 injection
engtne, please refer to “Service
CUPS
Data and Specificattons”.
1. Check that outside surface of
ENGINE ASSEMBLi(
18
These procedures are for electronic injection 1.7 engines vvith catalytic convertor only
1’
WARNING
!, ~Procedures described for IAlfa33)
’ ~are still~ valid ‘but ‘for what stated
L here beloW,. ~
For technical data of 1.7 injection
engine, please refer to “Service
Data’ and ~Specifications”.
WARNIhGS
1.
- Lubricate thoroughly cups @
ENGINE, UNIT
before inserting them into camshaft support @ seats.
- On reassembly of camshaft support on head, make sure the camshaft is in rest position (no cam
engaged; valves closed).
As per (Alfa] but modifying the
mentioned iteps.
-
Secure camshaft support to head
with gasket between tightening
the four nuts in crosswise order
to the temporay torque specified.
:.
L u b r i c a t e , ‘with ensine oil bear-
ings and slipbing surfaces before assembly.’ ~ ~
2. Use new gaskets, seal rings and
lock r i n g s ! .
3. Scred’ sprews’ and nuts to specified tightening torque.
4. Apply: specified sealant to components, likted here below.
$
: Temporarytightening, torque
Nuts securing camshaft supports to cylinder head
+ 115 N:. m
+ 1.5 Kg.m)
Step 15.
Install cylinder heads
l
(1) Turn crankshaft till the piston in
N o . 1 cyltnder, is set! at Top’ Dead
Center in the explosion. stroke; this
correct positioning is further ensured
by the “T’“~ notch @ on the flywheel
matching with the reference @ on the
rear caver 0.
- Before fitting rear caver onto support, insert 0.10 + 0.15 I engine
oil into support’ itself.
Oil sump, block side
Mastics rclass: 3522-00040
DOvV C,GRNING Silastick 732
R
T
V ~
.
.
Watar tubes,.plugs, caps, cylinder
heads and block.
Mast,ic class 3524-00011
Loctite 601 (green)
Before applying ‘sealants eliminate
any possible trace of old sealants by
degreasing the surfaces.
CYLIN~I~R H E A D
as
stated
Operate
per c-33) taking into account
the following:
1 Camshaft
2 Hydraulic tappets cup
Ol-,14
1
2
3
‘7” notch
Reference
Cylinder block rear caver
PA333500883300
8’
~
‘,
ENGINE MAIN MECHANICAL U~NIT
(2) Set the camshaft in rest position
(no ca” engaged; valves closed).
(3) F,it the~cylinder heads with crankshaft sipport on the cylinder ,block,
and ~ifis&the appropriat’e gasket.
Proceed as ‘per (Alfa] f r o m
Step;(t).
l
Step 18.
‘Installé timing belts.
(1) Fit~ camshaft drive pulleys and
tighttin ‘he’ retaining screw to specified
torque being caeeful, at the same time,
to stbp~ ptlley rotation by tieans of
toothecj spanner A.5.0195.
$ : Tightening torque
Camshaft pulley retaining
scr3v.
~83 + 70 N.m
~(6.4 + 7.1 Kg.m)
b
2
1 Timing belt rear qover
2 Left timing pulley
1 Timing belt rear guard
2 Right-hand timing pulley
(5) Realign notch “T” on flywheel ~
with the fixed reference mark (piston
of cylinder No. 1 ‘at T.D.C. in the ,explosion stroke) and, keeping shafts in
this position, fit the left timihg belt cinto
pulleys.
(9) Verify that distance “S” between
timing belt and contour of engine front
support is not less than the minimum
value prescribed.
The belt shall be fitted with its dragging side, opposed to straighteners,
under tension.
‘8
(2) Vdrify that the crankshaft’s anqular $ositiM co’rresponds to the Top
Dead @enter of cylinder No. 1, in the
explb<ion stroke (alignment between
notch ;‘T” on flywheel and rear caver
refererce mark).
(3)
R;!ate crankshati counterclockw i s e (,seen from rear side) by 45O in
order io tiove piston of cylinder No. 2
backwarc(s’so a,s to prevent valves striki n g again? piston during c a m s h a f t
rotati&.
~
(4) ,Pysifion the left camshaft SO that
the topth and the two adjacent milled
groovys of the left timing pulley are
visibleithrough the appropriate hole on
rear gIuard 0,
PA3d3500883300
Minimum distance “S” between
timing belt and engine front
support:
9 mm
(6) Loosen the nut securing the belt
straightener SO that it cari exert~the
spring load on the belt.
(7) Rotate the crankshati 45O to move
piston of cylinder No. 1 backwards#so
as to prevent valves striking against
piston itself when positioning the camshaft.
(6) Position the right-hand camshaft
SO that the toot,h and the two adjacent
milled grooves of right-hand tiniing
pulley are visiblesthrough the appropriate hole on rear guard 0; then bring
the crankshaft back in the position, indicated in Step (2) and fit the timing
belt onto pulleys.
CAUTION:
Pulley tends to rotate with respect
to correct position sincb camshaft
interacts With the intake &lve of
cylinder No. 3. For thisreason, use
appropriate wrench A.5.0195 in order to keep the pulley in the--correct
position for belt installatic@.
(11) Rotate crankshaft in jhe functioning-direction SO as to permit belts to
assume their final position.
(12) Rqtate crankshaft until piston of
cylinder No. 1 ‘is at its T.D.C. in the explosion stroke. (Notch “T” on flywheel
alignerj with reference mark). Then,
further’rotate the crankshaft counterclockw’ise (seen from rear side) until
notch v on flywheel is aligned with the
reference mark (right-hand camshaft
in rest position, no cam engaged).
May 1 9 8 8
l
ENGINE MAIN MECHANICAL UNIT,
;’ ”
~
: Tightening torque
: . Water temperature sender
(for temperature gauge)
+ 41 N.m
y:4 + 4.2 Kg.m)
. Water temperature sender
(for injection CU). Max
torque
1 5 N . m
(1.5 Kg.m)
!
(13) Loosen the nut of right-hand belt
straighten~er,, then tighten it to the
prescribed torque,
CAUTIOk
~
,’ Dr$ing ~this operation, do not press
the belt’straightener to prevent alter‘i’ ing the ~load, envisaged for belt
straightener ~itself.
$ : Tightening, torque
Nut securing belt straightener
(on cold engine)
37 +B 46’N.m
(3.d f 4.7 Kg.m)
1
Cooling fluid pump pulley
2 Screws
(3) Fix thermal contact on right head,
tightening screwto specified torque.
2 3 . S c r e w onto block, p r e s s u r e
switch to signal minimum oil pressure, tightening it to specified torque. ~
@J
: Tightening torque
Pressure switch
33 + 41 N.m
(3.4 i’ 4.2 Kg.m)
‘1
(14) Starting~ from the position cor~ responding to notch V on flywheel, ro1’ tate the, crankshaft one complete revo~lutton in the counterclockwise direction (seen from rear side) until notch
V is realigned with the reference mark
~ (left-hand ca’mshaft in rest position; no
~ cam engaged).
(15) Repeat Step (13) for the left-hand
belt stnaightener.
(16) At the end of operations, recheck
the correspondence of timing refer‘,’
ence marks on pulleys with the appropriate holes on timing belts rear
g u a r d s :and with notch “T” o n
flywheel,i aligned with the reference
mark.
~
fr0ceed~a.s per [Alfa] up to Step
20 inciuded, then complete reassembly oper&ng as stated below.
~
21. Fit: front plastic covers of timing
belts.
~
22. Mo&t pulley @ on pump hub
and
it with screws 0.
tighkn
May 1988 ’
(4) Connect thermostat to right intake
manifold through sleeve, then fix thermostat on engine block.
24 Fit intake manifold.
(1) If you previously removed it, fit
supplementary air solenoid valve on
right intake manifold.
8 .: Tightening torque
Thermal contact screw on
right head
33 + 41 N-m
(3:4 + 4.2 Kg.m)
‘,
(2) Insert intake manifolds com$ete
with new gaskets on stud of two heads,
then fix them with associated nuts.
,26.
Refit hoses of cooling system.
‘Mount sleeve @ c o n n e c t i n g ther;mostat @ to union @ and sleeve
~0 which connects thermbstat @ to
‘left intake, manifold 0; tighten all
screws of isleeve screwing clamps.
/-o
2
@ : Tightening torque
Nuts securing intake
manifolds
24 N-m
+ 2.4 Kg.m)
25. Fit the union, temperature senders, thermal switch and thermostat!
( 1 ) F i t u n i o n o n block, t i g h t e n i n g
scyews on intake manifolds.
@J
: Tightening torque
Union kecuiing screws
24 N.m
+ 2.4 Kg.m)
(2) Fit water temperature senders
on intalte manifolds.
0
1
-
1
6
1 Hose
2 Left intake manifold
3 Union
4 Hose
5 Thermostat
PA333500883300
‘~
~
27. Fitloil filter by manually tightening
it and insert dipstick.
ENGINE MAIN MECHANICAL UNiT
(4) Adjust belt tension according to
specified value and then lock bolts
30. ,Retiount injectors on intake
manifolds, replacing relevant O-rings,
and fix lfuel manifold.
,
28. Bi means of a suitable box span‘ner fit Fpark plugs tightening them ac‘cording t9 specified torque.
Load: 8 Kg
Arrow: 15 mm
- power module on distributbr
- engine water temperature sensor
- injectors.
$ : Tightening torque
Spark plugs:
i5
+ 34 N.m
~ (2.5 + 3.5 Kg.m)
829. Fii alternator and control belt.
‘(1) Fecure bracket @ and @ to engin? fiont caver and tighten the two
relevant screvis 0.
(2) ‘POsition alternator on engine supports &d tighten bolts @ without fully
locking them.
(3) K&y alternator and water pump
drive belt on relevant pulleys.
31. Position injection wiring on engine
and reconnect it to stated components:
- supplementary air solenoid valve
32. Fil1 the engine with specified engine oil and with specified quantity.
AGIP Sint 2000 SAE lOW/40
IP Sintiax SAE iOW/40
SHEEL Super Plus Motor Oil SAE
15Wl50
Oil quantity required for complete
1 Bolts
2 Alternator
3 Screws
4 Bracket
5 Bracket
lrefill (sump, filter a n d
oil channels): ’
4.1 litre
QI-17
May 1988
1700
305.58
1500
1350
1200f
Features
Otto 4 stroke
Cycle
L
305.58 A
4 horizontally opposad
Numbers of cylinders and arrangement
Right head
Laft head
Cylinder identification
Bore - Stroke
Displacement
mm
cm3
80x 59
1186
80 x 672
1351
80 x 67.2
1351
84 x 67,2
1490
87x72
1712
87x72
1712
Combustion chamber volume
cm3
37
42,2
39.7
44
49.5
49,5
Compression ratio
9
Max
Power DIN
kW (HP)
Specific
N.m (Kg.m)
Max Torque DIN
Piston ~mean
mis
speed (1)
Cylinder compression (2)
93
~9
50 (68)
42 (57.3)
at 6000 r.p:m.
58 (79)
43 (58,4)
at 6000 r.p.m.
63 (86)
47 (64)
at 6800 r.p.ni.
77 (105)
51 (70)
at 66Oq r.p.ti.
86,7 (118)
50,6 (69,8)
at 6800 r.p.m.
79
(110)
77
(105)
46
(64)
44,9
(61.3)
at 6 8 0 0 r.p.ti. a t 6 6 0 0 r.p.m.
80
at 3200 r.p.rir.
111 (1?,3)
at 3600 r.p.m.
119 (12.1)~
at 4000 r.p:m.~
133 (13.6)
at 4000 r.p,m.
148 (15)
at 3600 r:p.m:
(15,4)
145
(15,2)
148
at 4 6 0 0 r.p.ni. a t 4 6 0 0 r.p.m.
1 1.8
13,4
13
14,4
kPa (bar; Kglcm’)
1029.6 (10,3; 10,5)
98 (0,98; 1)
Min. pressure
Max difference in pression between cylinders
l
Dil pressura (3) kPa (bar); kg/cm*)
-
min on idle r.p.m.
- min on max r.p.m.
- max on idle r.p.m.
(1)
At max power output rpm.
(2)
Values to be read in these conditions:
- engine at operating temperature
- fully opened throttles
- engine cranked by starter motor, sparking plugs removed
117.68 + 274.60 (1,18 + 2,75; 1,2 + 2,8)
411.89 + 568,81 (4.12 + 5.69; 4,2 + 5,8)
(3)
(“)
(4
_
Values to be read at engine operating temperature (oil at 90% = 194oF)
Not marketed in all countries
For countries where antipollution regulations are in force.
/
196 (1,96; 2)
441 (4,41; 4,5)
490 (4,90; 5.0)
ENGINE
<--,;,
M
A
I
N
MECHANICAL
UNIT
~’
INSPEOTIdN AND ADJUSTMENT
CAMSHAFT SYSTEM
Unit: mm (in)
.-.
Double carburetor engines
Single carburetor engines
LEFT
SUPPORT
1350
305.86
1200 *
3g5.85
546.232
545.766
Camshaft
1500
305.88
1350
305.87
Inta ke
035 + 0,40
Exhaust
0.45 + 0.50 ~
Tap~e! clearance
Value~of timing marks
Right support
on camshaft supports
Left support
23O
23O
* ‘voté marketed in all countries
AllIvaIlues are with engine cold
~
I
1’
Rear guard for right - hand timing belt
2
3
T-shaped notch ,on flywheel
Rear guard for left - hand timing belt
Unit: mm (in)
r
I
Double
~
Electronic injection angines
carburetors engines
‘8
1’
’
i’
‘580.429
Camshaft
Tappet clearance
1 7 0
~305.50 ~
0
) 1700
~ 305.58
581.191
Intake
549.315
0 (Y
Exhaust
0
Camshafi pulley alignment reference position (with T-shaped
1700
305.58 a
r?
right-hand pulley
(**)
left-hand pulley
(***)
notoh on #flywheel alignad with the reference mark on engine
rear~cover, with the piston of cylinder No. 1 at T.D.C., in the
explpsion ,stroke).
8,
A ‘For countries where antipollution regulations are in force
(:) ~Engine with hydraulic tappets (with take-up of slack)
(‘T)
(*
l
,’
8,
‘;
Tooth with two - ..,red grooves on right-hand camshafi pulley, in correspondence with the related hole on rear guard @ of timing pulley.
‘) ~Tooth with two milled grooves on the left-hand camshaft pulley in correspondence with ;the related hole on rear guard @ of timing pulley.
May 1 9 8 8
m
n For countries where antipollution regulations are in force
(0) Crankshafl rotation ACW seen from flywheel side.
(*) Not marketed in all countries.
ENGINE MAIN MECHANICAL QNI,T ~
CYliItjDkR BLOCK
Unit: mm
(0) Area for dimension check
Engines
Inspection data
Glass A
i
,,
Class B
Class C
‘,S
Glass D
C$n,der ;bore “a”
Glass E
1 s t
Oversize
‘1
2nd
3rd
1700
305.50-305.58
1200*-1350
305.85186187
1500
305.8%
80,00+80,01
80.01 +60.02
60.02 t80,03
80.03 C80.04
80,04+80,05
84,00 f 84.01
84.01 + 84.02
84,02 + 84,03
84.03 G84.04
84,04 t 84,05
80,20 + 80.21
80,40 + 80,41
80,60 + 80,61
84,20 + 84,21
84,40 f 84,41
84,60 i 84,61
Out-etsquare between cylinder bore centreline
87,000
87,010
87,020
87,030
87,040
+
f
i
+
f
87,010
87,020
87,030
87,040
87,050
87,200 f 87,210
,87,400 f 87,410
87,600 + 87,610
0,05
and benfreline of main bearings
i;
Standard
0.01
Max
0,02
Taper and out-of-round limit
(0,541)
Cylindei bore surface roughness
’
10-Z
goo+ 1200
Cylinder bore grinding angle
63,663
+63,673
63,673 f 63,683
width of rear main bearing support ‘Y
-
23.68 i i3,73
(*) ,Nbt marketed in all countries.
~P A 3 3 3 5 0 0 8 8 3 3 0 0
May 1 9 8 8
Unit: mm (in)
ENGINES
‘L
1200-1350
305.85 (1)
305.86 (2-3)
305.87 (2-3)
Inspection data
C!as$ A (Blue)
Glass C (Green)
Standard
Class D (Yellow)
Class E (White)
1 s t
2nd
3rd
8 4 , 1 5 4 + 84,170
8 4 , 3 5 4 f 84,370
8 4 , 5 5 4 + 84,570
8 7 , 1 5 0 + 87,170
87,350 + 87,370
87,550 + 87,570
1,525 ~+ 1,545
Second compression ring groove height “d”
1,775 ; 1,795
Pin-Seat bore “b”
A For countries vvhere antipollution regulations are in force
2
c.2
0
80i154 + 80,170
80,354 + 80,370
80,554 t-80.570
First compression ring groove height “c”
Oil scraper~ring groove h e i g h t ‘le”
( 1 )
83,960 + 83,970
83.970 i 83,980
83,980 f 83,990
83.990 + 84,000
84,000 f 84,010
+
+
+
+
+
H =
( 2
(3) H
(4) H
(5) H
(6) H
7 . 6 m m ~MONDIAL P i s t o n
..
) H=11,7mm ”
= 16.5 mm BORGO
”
.,
= 15.5 mm
”
,,
q
6,0 mm
”
= 13.9 mm MONDIAL
”
Borgo
86,970
86,980
86,990
87,000
87,010
!
I
Oversize
79,970
79,980
79,990
80,000
80,010
Pistone
86,960 +
86,970 +
86,980 +
86,990 +
87,909 +
79,960
79,970
79,980
79,990
80,QOO
Class B (Pink)
1700
305.50 (5-6)
305.58 (5-6)
1500
305.88 (3-4)
1,515 +~1,535
fILO? + 4,035
21,004 + 21,008
1
1700 A
305.58 (6)
L
Pistone Mondial
86,950 t 86,960
86,960 + 86,970
86,970 + 86;980
86,980 + 86,990
86,990 + 87,000
86,950 + 86,960
86,960 + 86,970
86,970 + 96,980
86,980 + 86,990
86,990 f 87,000
87,144~+ 87,160
87,344 + 87,360
87,544 + 87,560
87.144t87.160
87,344 t 87,360
87,544 f 87,560
1,535 f 1,555
1,775 + 1,795
3,015 + 3,035
1,535 t 1,555
Unit: mm (in)
I
Inspection data
Ring thickness “b”
Engines
1200 *
305.85
1350
305.86 - 305.87
1500
305.88
1700
305.50-305-305.58
First compression ring
1,478 ~1,490
1,478 + 1,490
Second compression ring
1,728 + 1,740
1,728 + 1,740
Oil scraper ring
3,978 f 3,990
I
I
2,978 + 2,990
First compression ring
0,30 + 0.45
+
0.30 045 (2)
0,30 + 0,50 (3)
0,30 + 0.50
Second compression ring,
0,30 + 0,45
0,30 + 0,45 (2)
0.30 + 0,50 (3)
0,30 f 0,50
Oil scraper ring
0,25t 0,40
0,25
0.25
Ring gap “a” (1)
Limit gap for each ring
(1)
TO be measured inside the cylinder b6iëm6r inside a ring gauge
(?) Borgo ring
(3.l Gostze ring
Not marketed in all countries
(‘)
1
++ 0,40
0,50
(2)
(3)
0,25
+ 0,50
8,
m,‘,
~
(
i, ,’
‘i
fi
,.,
l
,l
~
‘ENGINE MAIN MECHANICAL UNIT
~
~
~
Unit: mm (in)
‘1
8’
1,
~
hpac?ion d a t a
,’
I
Engines
1200 *
305.85
1350
305.86 - 305.87
o,oo$ + 0,12
P i n - p i s t o n slack
”
‘1
1988
1700
305.50 - 305.58
20,996’+ 21,000
P i n diarndter “a”
Mai
1500
305.88
OI-24
PA333500883ilOO
ENGINE M A I N MECHANICAL~, UNI-r
COh$ECTlNG ROD AND CONNECTING ROD ‘BEARINGS
‘i,
Connecting rod (1)
Unit: mm (in)
Engines
Inspection data
.,
1200*
305.85
1350
305.86/87
1500
305.88
Small end bush bore diameter “a”
21,007+21;015
~
F$end bore diametar “b”
52,696 + ,53.708
1700
305.50/58
Connpc$ng rod bearings
l
Unit: mm (in)
T
Inspection data
Standard
1st
Conneqting, rod bearing
thickness “ a ”
i
(1)
O\iersize
2nd
1,956 + 1,962
2,083 +:2,089
3rd
2,210 +‘2,216
4th
2,337 + 2,343
l
If thd connecting rods are completely removed. usa post-modificatin ones (Std No. 542 128)
If the connecting rods are partially replaced it is still possible to mount pre-mobification’ones (Std. No. 535.022)
(*) ~Net marketed in all countries
l
l
.-
PA33@5!0883300
OI-25
May 1 9 8 8
18
~
ENGINE MAIN’ MECHANICAL
,‘,’
‘8
UNIT
l
FLYWHEEL
”
Unit: m (in)
Engine
1’
Inspection’dete
1200 *
305.85
1350
305.86/87
a 500
305.88
1700
305.50/58
,”
~ 24,0 + 2 4 . 2
8,
G 0.2
~
Parall,elism bof the’driven plete.contact face compared
with flywheel-to-cranksheft support face (as read et
,’
> 2 0 . 9 5
OS@
‘a 108 mm (3.94 in) radius)
0.02
Maximum outof-flat of driven plate contact face
~
2.10-3
3urfece~roughness of driven plate contact face
~
The quamtity of material removed bv grinding dimension “b”, must be the seme both on clutch driven plate contact fece and on the
fece of the register for the clutch caver, SO that dimension “a” is kept constant., Dimension “c” must not be lowerthan the specified
lit-oit.
(1)
im ~
(“1
No! marketed in all countries
_
,Myy 1 9 8 8
,
OI-26
PA333500883300
l
l
~ ~
?’
ENGINE MAIN MECvANICALs UNI$
CRA$lKSHAFT, THRUST RINGS AND MAIN BEARINGS
~
Cranlishaft
Out of. round X - Y
Taper
1 Flywheel locating dowel
2 Gear tooth beginning line
A - B
Unit: mm (in)
Eng/ne
Inspection date
1200 *
305.85
1’350
305.86187
Standard
ye,in jpurnal diameter “d”
Undersize
‘8
Rd& main jciurnel length “c”
lst*
59,690 + 59,703
2nd
3rd
59,436 f 59,449
4th
58,928 + 58,941
Blue
Red
Unders’ize
1st
2 n
3rd
4th
59,182 + 59,195
,i
~
Ly”th of parallel portion “a”
~ 49,733d 49,746
49,479 $49.492
49,225 + 49,238
48.971 + 48,984
d
Standard
28.51 + 28.55
Oversize
28,764 + 28,804 (1)
1,8?2
”
Rear main journal
1,5+1,7
2.8 ~+ 3
Crank pins
Length of fillet radli portions ‘If”’
49,984 ‘: 49,992
49,992 4 50,000
Front and centre1 main
journals
Fillet tadii “r”
1700
305.50/58
59,944 + 59,957
Standard
Crank;pin diameter “e”
1’
1500
305.88
.i
;Front main joucnals
2,ll 7 2.81
Central main journal
24.05 % 24.15
Rear main journal
24.22 + 24,32
0.16. 103
&rface roughness of main journals and crankpin
I
X-;V &ality and limit for taper
A-p of main’ journals and crankpins
O,qOS
o.o;
MAX. error of parallelism between crankpins and,main journal6
0,015
m,,
Max. misalignment among main journsls
0.02
0.25
(“J
No/ marketed in all countries
PI-27
May 1988
‘,
:
ENGINE MAIN MECHAhlICAL U’NiT
8.
Unit: mm (in)
~
E n g i n e
l
Inspection data
1200 *
3 0 5 . 8 5
1 3 5 0
‘305.86187
Max. miialignment betwaen tha centrelines of the MO
pairs of crankpins and the journals centreline
1500
305.88
1700
305.50/58
0.03
,l,
”
Rear crankshaft bush diameter “b”
16,065 + 16,080
Fitmant~ of raar crankshaft gear “CL”
(distri,butor/oil pump drive)
22O f 260’
il j. Requtting eoually spaced on both shoulders
,,N
Thrust rings
Unit: mm (in)
Engine
Inrpection data
1200 *
305.85
Standard
Thickness
1500
305.88
ho%87
1700
305.50/58
2,310 f 2,362
“a:’
1,
2,437 + 2,489
Oversize
~
Main tieqrihgs
,’
x
a
Unit: mm (in)
,,,
Engine
1
,i
1200 *
305.85
Inspection data
,s
Standard
ihickness “a”
~
1500
305.88
1700
305:5&58
1,832+1,84i
lit
Oversize
1350
305.86/87
1,959 + 1,968
2nd
2,086 + 2,095
3rd
2.27 3 + 2 , 2 2 2
4th
2,340 + 2 , 3 4 9
(*) Not marketed in all countries
~
May 1988
01-28
PA333500883300
”
”
ENGINE MAIN MECHA~WCA~ LJNIT
CAMSHAFT SUPPORT, CAMSHAFT AND TAPPET BUCKET
,’
Camshaft support and tappet bucket
-b--l-
,’
~
l
Unit: mm (in)
i
E n g i n e
1200 *
305.85
Bore of cbmshaft journal bearing
di&-&f “‘a*’
Seat tappet
bucket d i a m e t e r “ b ”
Tappit bucket diameter “c”
(“1
1350
305.86187
1500
305.88
1700
305.50/58
Front
35,015 +35,040
35,015 + 35,040
Central
46,500 f 46,525
48,000 + 48,025
Rear
47,000f47,025
49,200+ 49,225
35,006 f 35,027
35,000 + 35,025
34,975 + 34,995
34,975 + 34,995
N’ot marketed in all countrias
~
PA333500883300
May 1 9 8 8
Rear
Central
Front
I
I
.n
(0
”
U n i t :
Inspection data
Cam height
1200 *
305.85
’ 1350
305.86
1350
305.87
I
(“)
1500
305;88
1700
305.50
1700
305.58
1700
305.58 A
Intake
8,50
10,2
9,80
9,50
Exhaust
8.50
95
w
8,45
Front “a”
Camshaft journal diameter
Engine with electronic ignition
Double carburetor engines
Single carburetor engines
L
m m
34,940 f 34,962
Central “b”
46,440 + 46,456
47.940 + 47,956
Rear “c”
46,940 + 46,956
~$9,140 + 49,156-
Not marketed in all countries
(A)
For countries where antipollution regulations are in force.
(T)
Not marketed in all countries
Cylinder head
Unit: mm (in1
-
Engine
Inspehon data
1200*
1350
305.85
365.86
1350
305.87
1500
305.88
13,000 + 13,018
Valve guide seat diameter “d”
13,050 + 13,068
Standard
l
Valve guide O.D. “a”
l
Spare
13,064 + 13,082
Diameter of valve guide bore “b”
8,013 + 8,031
Diameter of saating for valve Stern sealing cap. “f”~
10,85 + 10.95
9,3 + 9,5
Valve guide protrusion “8”
Min. cylinder head thickness after resurfacing “c” (1)
Max. error of parallelism betweenhe,ao surfaces
Max. out of flat on head lower surface
0,05
~~
0,03
1.6 . 10-S
Head lower surface roughness
(1)
77,676 + 77,750
Resurfacino of cvlinder head with hemispherical combustion chamber must be done on both heads of the same engine
(*)~ Net marketed inaIl
couWieS
~~~~
1700
305.50
~-1700
305.58
l-b-4
Unit: mm (in)
Engine
Inspection data
1350
305.86
1200 *
305.85
1350
305.87
Intake
7,985 + 8,000
Exhaust
7,968 + 7,983
1500
305.88
Valve stem diameter “a”
Intake
39,70 + 39,90
38,00 + 38.20
Valve head diameter “b”
Exhaust
(“1
Net marketed in ail countries
33,00 + 33,20
1700
305.50 - 305.58
ENGINE’ MAIN MEi2HANICAL U~lilIT
VALVE SEAT RECUTTING DIMENSIONS
file~aft~r, max recutting
Unit: mm (in)
Engine
Inspection data
Referr&e diameter “OR ”
,’
~
1200 *
305.85
1350
305.86
1500
305.88
Intaké
37,3
39.0
Exhaust
31;9
31,9
2.9
23
Fut liinit of ;Valve seat top surface “a”
,’
Fut limii of’valve seat mating surface “b”
1350
305.87
Intaka
1,07
Exhaust
1,26+1,56
Valve seat top surface limit angle “a”
+1,37
1.07 + 1.37
~
1,26+ 1,56
120"
1200
Valve setit rnating surface limit angle “fi”
9O”i
1700
305.50/85
90030'
90~+90~30
~
Intake
500
700
Exhaust
300
300
Valve se+ in’ner face limit angle “y”
1”)
l
‘Net marketed in all countries
i’
PA33i500883300
OI -33
May 1988
,,,
,!
;,
ENGINE MAIN MECHANICAL UNil? I
FiTMEbT’P&AYS OR INTERFERENCE FITS
Unit: mm (in)
~
Engine
‘1
;,
;’
inspection data
1200-1350-1500
305.85 - 305.86 - 306.88
305.87
'1
Standard
0,03 + 0,05
Oversize
0,03 + 0,06
0,03 f 0,05 (1)
0,04 + 0,06 (2)
0.03 +0,06-(l)
0.04 + 0,066 (2)
Cylin@ borelpikn play
First compression ring
Ringlgroove end float
'i
~
0 , 0 3 5
1 7 0 0
305.50
0,035 + 0,057 (1)
0,045 + 0,077 (2)
+0,067
Second compression ring
0,035 + 0,067
Oil sciaper ring
0,025 + 0,057
0,040 + 0,060
0,040 + 0,066
0,045 f 0,077
Cl
Maximum foieach ring
l
Pinlsm~ll en! bush bore play
1700
305.58
0;007+0,019
0,004 + 0,012
Pinlpistpn bore play
Front and rear
Main~ bearing to-
Central
journ,al Iplay
Maximum (with
0,024+0.06<
0,034+0,075
61
bearing in Seat)
(1) Borgo Piston
(2) Mon’disl~ Piston
”
~’
May 19’88’
PA333500883300
i>
,!,
ENGINE MAIN MECHAN~CAL ?N~T
HEAjING TliMPERATURES
As per (Alfa2 .
~
;,
GEN’ERAL
SPECIFICATIONS
FL,~IbS;~AND LUBRICANTS
Unit: I (Imp. Gal)
Application
aty
(litres)
Denomination
Type
AGIP SINT 2000 lOW40
Engir!e oil sump at max level
3.5
Std. No. 3631 - 69352
Filter~ an? interyal piping
Peri$lical change with filter replacement (“)
0.6
IP SINTIAX iOW40
OIL
4
Std. No. 3631 -‘69353
.
0
SHELL Super Plus
Motor Oil 15W50
(*) Fllter removal involves only the partial emptying of interna1 piping.
I
,’
SEAkItiG
81 8,
C,OMPOUNDS
”
1,;
*
As:,f$r [Alfa331 together with .the following torques for; 1.7 engines
GRINDINGS
TI~HT~ENING TORQUES
A s f o r C-33)
except as follows for 1.7 engines
c
Measurement unit
Ne+
N.m
Kg.m
66.5 i 63.3
6.6 i 6.5
14.7 + 23.5
1.5 + 2.4
.&rews securing engine front cross member and anti-roll bar bracket
to
bod;
Sctews! Isecuring anti-roll bar to strut
Scie~s connecting copiant velocity joints to differential shafts
C<alant temperature sender for fuel injection electronic control unit
PA333500883300
41-35
‘33 + 36
3.4 f 3.7
15
1.5
May 1 9 8 8
~
~
E N G I N E M A I N MECHANICAL UNIT ~
~~ssE~~~c~ DATA AND
8,
‘1
SP EC IFIC A T I O N S
F o r d i e s e l engines only ”
’ ~T+iNICA;L DATA
As for
33l.ETO
exc&t for those features listed below:
ENGIN$
Dka
Features
VM82A
Engine t~ype
4 - Stroka Diesel
(Precombustion chamber OMET)
3 in line
Number,of cylinders and arrangement
Cylinded
identification
Runningidirection
Bore - Stroke
mm lin)
Displace~ment
cm3 (cu. i n )
Combustion chamber volume
cm3 (CU. in)
~
892 x 89.2 (3.62 x 3.51)
1779 (108.58)
23.2 to 24.3 (1.41 to 1.48)
22,: 1
Compression ratio
Power C~EE ;(at 4000 r.p.m.)
Maximum
Specific
5
kW (CV) IkP)
5 (75)
30.55
Max. torque DIN (at 2400 r.p.m.)
N.m (kg.m; ftlb)
1
1,
Piston, mean speed (2)
m/s (ft/s)
,;
(73.97)
(41.66)~
(1)
(1)
(41.08)
,,
150
(15.3’;
ti10.63)
(1)
11.893 (39.02)
1,
Cylinder compression (3)
Specified value
Max. difference in pressure between cylinders
kPa (kglcm’; p.s.i.)
2156- ( 2 1 . 5 6 ) ( 3 0 6 . 6 5 )
9
8 (0.98) (13.94)
Engine oil pressure (4)
At idle r.p.m.
At peak r.p.m.
kPa (kglcm”; p.s.i.)
400 (4; 56.89) (“1
550 (5.5; 78.23) (* “1
1’
il )
Tolerance up to: - 4%
(2)
At ~maximum power output r.p.m.
13)
Beadings to be taken with engine at operating temperature driven by starter motor (140 to 160 r.p.m.)
(4)
Readings to be taken with engine at operating temperature (oil at 90°C; 194°F)
l
(6) Min. allowable value
i(6) Ma;. allowable value
May
19i8
01-36
PA333500883300
r
~
‘1’
ENGINE MAIN MECHANICAL UNIT
‘CRiXKS AND ADJUSTMENTS
~
,’
TIMING DATA (1)
129.958
Alfa Romeo Part No.
Camshadt
Normal;valve clearance “a”
8,
~
‘1
~
Intake
0.30 (0.012)
Exhaust
0.30 (0.012)
~ 7.20 (0.283)
Intake
Normal cam lift
7.64 (0.301)
Exhaust
I
I
(1)
AIl values refer to cold engine
TI~II~~~: DIAGRAM (ANGULAR VALUES) (11
(crarjkshpjt clockwise rotation, viewed from front side)
”
T.D.C.
“
Opens (B.T.D.C.)
I n t a k e
88
Intake
‘1
1:
1
~ 460,?
‘<c#l
“
Opens (8.B.D.C.)
Exhaust
220 k 5O
”
<le><
Closes (A. 8. D. C.)
Intake phase angle
diagrani
a
50
250°
d
60’ f 5O
”
~
Closes (A.T.D.C.)
“b”
Exhaust phase angle
“
Clearance for checking
mm (in)
f
24”+5’
264=’
”
1.2 (0.047)
O p e n s (A.T.D.C.)
3O+2O
Closes (A.B.D.C.)
200 f 30
iDia,gram f o r
timlng check
Clearance for checking
Exhaust
m
m (in)
.
6
5 (0.065)
260 f 30
Opens (8.8.D.C.)
1oo+2°
Closes (B.T.D.C.)
(1)
1
~AI1 values refer to cold engine
PA13335?0883300
m-37
,,,,
May 1948
~
E N G I N E M A I N MECHAiUICAL UNIT~’ ~
r CYLINDER LINERS, COMPRESSION RINGS, GUDGEON PINS AN,D F!ISTONS
Cylinder liners
Unit: mm (in)
‘8
Engine
,m
1800
Inspectiqn data
”
,,
1,
VM 82A
1’
92.000 to 92.010
Grade A
Liner bore
“a”
i
(3.6220 to 3.6224)
I
0.11 to 0.23 (0.0043 to-0.0091)
Recess of cylinder liner outer rim from engins block (1) “c”
L i n e r stand;out “b” from engins b l o c k (1)
6.00 to 0.0,~ (0 t o 0 . 0 0 2 4 )
M a x lbv& oya)ity and taper fat wear limit)
0 . 0 1 0 (6.0004)
Liner inner surface roughness (new)
/Jrn
~
(in)’
,0.8 to 1,.2[~0.0315 to 0.0472)~10”]~
;,’
(1) For this measurement, fit liner retaining tool A.7.0411 and tighten screws to 59’Nmf6 kg.m) (43.38 ft:lb)
‘,
Mezxuret)ent of’ gasket thickness +t+eeq’liner and engine block
~ I
‘4
Unit: mm (in)
Engine
1
!1800
I'
~
Recess of cylinder liner outer rim from engine block “c”
I
VM 82A
Gasket “d” thickness
i
0.11 to 0 . 1 4 1 0 . 0 0 4 3 to 0 . 0 0 5 5 )
0 . 1 5 t o 0 . 2 0 ( 0 . 0 0 5 9 to 0 . 0 0 7 9 )
‘;
~
0.15; b.0059)
0 . 2 0 (0.0079)
0 . 2 1 t o 0 . 2 3 ( 0 . 0 0 8 3 t o 0.0091)
0 . 2 3 (0.0091)
.
1
01-38
PA333500883300
!,
r
ENGINE MAIN M&HANICAL IJNIT ~
,,
Compression rings
0 -. 7 --.
WL
a
Unit: mm (in)
Engine
1 8 0 0
Inspection data
VM 82A
Ring thickness “a”
l
81,
~
1 st compression ring
2.075 to 2.095 (0.0817 to 0.0825)
2nd compression ring
1.978 to 1 .s90 (0.0779 to 0.0783)
Oil scraper ring
Ring gap (‘1 ) “b”
;’
3.978 to 3.990 (0.1566 to 0.1571)
1 st compression ring
0.40 to O.b5 (0.0157 to 0.0256)
2nd compression ring
0.25 to 0.45 (0.0098 to 0.0177)
Oil scraper ring
0.25 to 0.58 (0.0098 to 0.0226)
(1:) ~TO! be measured by ring gauge or in cylinder liner
‘i
“,,
IGudgeon pins
Unit: mm (in)
Engine
Inspection data
1800
VM82A
.
igec ,,n pin biameter “a”
May ~1 9 8 8
29.990 to 29.996 (1.1807 to 1 ,1809)
PA3335008833Ob
88,
ENGINE MAIN MECHANICAL UNIj- ;
i
Pistons~ (with insert)
b
c
d
Unit: mm (in)
,Engine
1800
Inspection data
~
VM 82A
~
m,91.965 to 91.9P5 (3.6206 to 3:623 1)
Grade A
Pistbnidiameter:(l) (‘a”
1st coypqession ring groove height “b”
21175 to 2.205 (0.0856 to 0.0868)
~
2nd cdmpression ring groove height “c”
2.060 to 2.080 (0.0811 to 0.0819)
Oil scr:aper ring groove height “d”
4.020 to 4.040 (0.1583 to 0.1591)
:,
,”
30,002 + 30,007
Gudgeon pin bore dia. in piston “8”
~ ~
”
,,
,,
Max pistqn skirt wear limit
~ 8,
~
0.050
(0.002)
0.050 (0.002)
Mai gudgeon pin bore ovality (at wear limit)
‘,
(1) TO tic measured perpendicularly to gudgeon pin, at 19.75 mm (0.7775 in) from lower edge of piston skirt
(2)
Cor t,his measurement use special cylinder liner retaining tool A.7.0411 and tighten the screws to 59 N.m (6kg.m)
‘,
Measur;ement of cylinder head, gasket thickness
Unit: mm (in)
E n g i n e
~
t
I
,i,
~
1800
Cylinder head gasket thickness
Identification notches
VM 82A
Piston projection at, T.D.C. with respect to liner
outer rim “f” (1)
~
May
1.420 10.0559)
0
0.480 to 0.570 (0.0189 to 0.0224)
1.520 (0.0598)
2
0.580 to 0.610 (0.0228 to 0.0264)
1.620 (0.0638)
1
0.880 to 0.770 (0.0268 to 0.0303)
19i8
PA333500883300
L
8’
,’
Y
:,
ENGINE MAIN M~ECHANICAL $lT~
CRAfiKkHAFT, CYLINDER BLOCK AND MAIN BEARINGS; CQl)lNECTING PODS, BIG END
BEAFING AND FLYWHEEL
ICrat)@shaft
I.,
d3
62
dl
Ovality X-Y
Taper D-E
Unit: mm (in)
Engine
Inspection data
1800
I
62,995 f 63,010
63,005 + 63,020
69,985 + 70,000
53,940 953,955
Standard
Crankpin diameter “6”
;.
Undersize
~
1st’
53.670 + 53,690
2nd
53,420 + 53.440
Fear main journal length “C”
~ 27,975 G-28.025
Front and intermediate
main journals
Fi!lets
i
Rear main journals
Cran kpins
Main, journal and crankpin surface roughness
2.7 +3
“dl”
2.7 +3
“dz”
2.7 f 3
“ch.”
/.0-n (in)
0,12
0 , 0 1 0
‘Max. main journal and cran’kpin ovality at wear Emit
~
Max. main journal and crankpin taper at wear limit
0.10
Jvlax. main journal eccentricity
0.03
F;inal dimension “L”
430.5
,
Note: Fiénitride crankshaft after grinding.
PÀCj33500883300
May
1988
i
I
‘i,
‘,
,,
l
ENGIR;E M A I N MECHANICA’L UN’IT’ ~
Cylinder: block hd main bearings
”
,’
Unit: mm (in)
I
~
Inspection data
~
Front bearing housing bore dia. “A” in engine block
~
:67.‘025
d
63.060 to 63,110 (2.4826 to 2.4846)
‘8
S
Front bearing inner dia. “8” in engine block
t
a
Undersize
n
d
a
r
1st
2 n
62.810 to 62.860 (2.4728 to 2.4748)
62.‘560 to 62.610 (2.4630 to 2.4650)
d
Intermediate bearing housing bore dia. “C” in bearing split rings (1)
I
66.670 to 66.687 (2.6248 to 2.6255)
Standard
I
63.050 to 63.093 (2.4823 to 2.4840)
Intermediate bearing inner dia. “D” in baaring
split rings (2)
‘,
62.BOO to 62.843 (2.4724 to 2.4741)
62.:550 to 62.593 (2.4626 to 2.4643)
Rear bearing ‘inner dia. “E” in bearing split ring
69.800 to 69.825 (2.7480 to 2.7490)
69.550 to 69.575 (2.7382 to 2.7392)
Rear bearin,g housing shoulder distance “F”
33.060 to 33.130 (1.3016 to 1.3043)
I
1,
Crankshaft ;abutment flange thickness “G”
7.90 to 8.10’(0.3110 to 0.3189)
Standard
Shim’rings thickness “l-l”
1’
:
88
to 67.050 (2.6388 to 2.6398)
Oversize
2.311 to 2.362 (0.0909 to 0.0930)
1 St
2nd
21411 to 2.462 (0.0949 to 0.0969)
2.511 to 2.562 (0.0988 to 0.1008)
~
(1)
For thie measurement, fit.linear retaining tool A.7.0411 and tighten screws to 59 Nn (6 kg.m; 43.38 ftlb)
(2)
TO ‘be measured with bearing split ring screws thightened to 39 to 44 N.m (4 to 4.5 kg.m;),
May
1988
~
OI-42
,,
~
PA333500883300
‘1
Y
E N G I N E MAlN~MECHANICAL~UhjIT
‘Connecting rods and big end bearings
Unit: mm (in)
Engine
8’
Inspection data
1800
V M
8 2 A
Connecting rod small end bearing bore “a”
30.030 to 30.045 (1.1823 to 1.1829)
Connec$ing rod small end bearing outside diameter “b”
34.089 to 34.129 (1.3421 to 1.3437)
Bush housing inner dia. “c” in small end
34.000 to 34.025 (1.3386 to 1.3397)
Big end inner dia. “d” (1)
57.563 to 57.582 (2.2663 to 2.2670)
I
Connecting rod big end bearing bore (1’) ‘le”
Standard
Undersize
I
1st
2nd,
53.975 to 64.014 (2.1250 to 2.1265)
53.725 to 53.764 (2.1152 to 2.1167)
53.475 to 53.514 (2.1053 to 2.1068)
(18) ~TO be measured with connecting rod screws tightened to 79.4 to 84.3 N.m (8 to 8.6 kg.m; 57.84 to 62.18 ft.lb)
PA333500883300
01-43
May 1 9 8 8
1,
,:
1
~
ENGINE MAIN~ b/iiCHANICAL U~NIT ~
1’
FITl$NT PLAYS AND INTERFERENCE FITS
~
Unit: mm (in)
,,
l
Engine
1800
Inspection data
VM 82A
0.625 to 0.045 [(0.984 to 1.772).10”]
New
Cylind’er liner/piston clearance
l
Wear limit
‘i
1~
0.5 (19.68.1 03)
1 st compression ring
~
Ringlg’roove. end ‘float
0.080 to 0.130 [(3.149 to 5.118):10-3]
2nd compression ring
0.070 to 0.102 [(2.756 to 4.016,.10-3]
Oil scraper ring
0.030 to 0.062 [(1.181 to 2A41j.10-3]
Pinlpiston bore clearance
6,006 + 0,017
,~
0.034 to 0.055 [(1.338 to 2.16E~>:lO-~]
New
~
Pin/small-end bush bore clearance
‘,
Wear limit
8:
0.100 (3.937.10-3)
Rear main journal
0,050 + 0,080
Front main journal
0,050 + 0,115
Intermediate main journal
0,030 + 0,088
Main journal/bearing running
c l e a r a n c e (,new)
~
l
g,O22
Big-yd baaringlcrankpin running clearance (newj
Main journal and’crankpin/bearing running clearance (at wear limi,t)’
+,0,076
0.200 (7.874.10”)
Crankjhaft end float
81,
Big-end end float
‘0.1,21 to 0.323i[(4.764 to 12.716j~lO”]
0120 to 0.40 p(7.874 to lE~748,~10-~]
~
,New
Camsh’aft j,ournal/bearing
runnin’g clearance
‘0.640 toO.l10 [il.575 to 4.331,.10-31
Wear limit
0.200 f7.874.103)
New
Rocker bush/shaft
runnin~g clearance
,,
~
0.020 to 0.062 [(0.787 to 2.441,.10-3]
0.200 (7.874.10-3j
Wear limit
,’
New
Tappet/housing’
running clearance
,m,
0.025 to 0.070 [CO.984 to 2.756j.10-3]
Wear limit
O.ldO
(3.937.10-3)
I
I ntake
0.640 to 0.075 [(1.575 to 2.953 .10-31
Valve stem/guide running clearance
Valve seat/housing
E x h a u s t
0.060 to 0.095 [(2.362 to 3.740).10-3]
Intake
0.085 to 0.124 [(3.346 to 4.882L103]
Exhaust
0.062 to 0.102 [(2.441 to 4.016).10-3]
interference fit
Valve guidelhousing interference fit
0.020 to 0.047 [(0.787 to 1 .850~>.10-3]
Rotoristand-outs in oil pump
0.930 to 0.073 [(1.181 to 2.874).10-3]
Oil pump innerlouter rotor max, clearance
0:OiO to 0.20 [(2.756 to 7.874)*10-3]
I
New
Outer ‘rotorlhousing
clearance in oil pump
0.130t00.185[(5.118t07.283)~10-3]
Wear limit
O.S? (19.68.10-3)’
Gear end!float in pump body
May
6.05 to 0.07i[(1.968 to 2.756).10-3]
61144
19!8
‘,
~
A
~;
~
8’
~
‘,
PA333500883300
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 04-2
( General description . . . . . . . . . . . . . . . . . 04-2
. Injection system Jetronic LE 3.2 . . . . . . 04-2
lAccelerator throttle switch calibration . 04-20
Fuel’ pressure checking and fuel
tightness . . . . . . . . . . . . . . . . . . . . . . . . , . . . .(a)
Ignition system . . . . . . . . . . . . . . . . . . . . 04-2
Adjustment for accelerator control table (a)
,
. Air, fuel, fuel vapour system chart . . . . . 04-3
i Wiring diagram for injection system . . . . 04-4
Idle rpm adjustment . . . . . . . . . . . . . . . . (0)
c
. Main components . . . . . . . . . . . . . . . . . . 04-5
important general data . . . . . . . . . . . . . . 04-B
AIR SUPPLY SYSTEM . . . . . . . . . . . . . . . . . . .
. Airfilter . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air flow sensor . . . . . . . . . . . . . . . . . . . . .
Extra air solenoid,valve . . . . . . . . . . . . . .
04-9
04-10
04-10
04-g 1
CO percentage adjustment at exhaust . 04-20
ELECTRICAUELECTRONIC
COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . 04-21
:Fuel level gauge . . , . . . . . . . . . . . . . . . . . (*)
‘Electronic CU . . . . . . . . . . . . . . . . . . . . . . 04-21
Accelerator thro,ttle switch . . . . . . . . . . . 04-21
Col’lant temperature sensor . . . . . . . . . . (i*)
. Throttle body . . . . . . . . . . . . . . . . . . . . . . 04-11
EXHAUST SYSTEM . . . , . . . . . . . . . . . . . . . . . 04-23
. Su,pply manifold . . . . . . . . . . . . . . . . . . . . 04-12
,Precautions for Catalytic mufflervehicles 04-23
FU~EL SUPPLY SYSTEM . . . . . . . . . . . . . . . . . 04-14
‘Checks mand inspections . . . . . . . . . . . . . 04-23
Removal #. . . . . I .,. , . . . . . . . . . . . . . . . . . 04-23
F u e l t a n k . . . . . . . . . . . . . . . . . . . . . . . . . . (*)
~ Fu:el p,ipes . . . . . . . . . . . . . . . . . . . . . . . . . (*)
. Fuel pump . . . . . . . . . . . . i . . . . . . . . . . . 04-15
. Fuel filter . . . . . . . . . . . . . . . . . . . . . . . . . (0)
~lnstall,ation . . . . . . . . . . . . . . . . . . . . . . . . 04-24
IReplacement of catalytic muffler . . . . , (0)
Lambda probe replacement . . . . . . . . . . (0)
. Damper . . . . . . . . . . . . . . . . . . . . . . . . . . . 04-15
. Electroinjectors . . . . . . . . . . . . . . . . . . . . 04-15
Troubleshooting for catalytic muffler . . 04-25
SERVICE DATA AND SPECIFICATIONS . . , . 04-26
’ Fuel pressure gauge . . . . . . . . . . . . . . . . .04-16
Technical data .‘. . . . . . . . . . . . . . . . , . . . 04-26
FU~EL VAPOUR EMISSION
C~NTROL,SYSTEM
Check,s and adjustment . :. . . . . . . . . . . 04-26
. . . . . . . . . . . . . . . . . . . . . 04.i7
. Fuel vapour separator . . . . . . ., . . . . . . . .
Compensation valve . . . . :. . . . . . . . . . .
. Dump,valve . . . . . . . . . . . . . . . . . . . . . . . .
) Fuel vapour filter . . . . . . . . . . . . . . . . . . .
04-18
04-18
04-18
04-18
CALlB,RATiON AND ADJUSTMENTS . . . . . . 0 4 - 1 9
Throttle body calibration (flow) . . . . . . . 04-19
~
General specifidations . . . . . . . . . . . . . . 04-27
SERV’ICE DATA ANDI SPECIFICATIONS . . . . 04-28
Technical data 1.‘. . . . . . . . . . . . . . . . . . . 04-28
General specifidations . . . . . . . . . . . . . . 04-28
Checks and adjustments . . . . . . . . . . . . (*)
Tightentng torqwes . . . . . . . . . ‘. . . . . . . . . (*)
SPECIAL SERVICE TOOLS . . . . . . . . . . . . . . . 04-30
(y) ~R~efer to “WORKSHOP MANUAL
” VOLUMES I and II - Group 04
(A) ~Refer to Group 00
(ta) Refer to Group 07
(A) For electronic injection 1.7 engines with catalytic converter only
P(i 31! 7+0088330 1
October 1988
D E S C R I P T I O N ‘~ .~
For electronic injection 1.7 engines’
~
GENERAL DESCRIPTION
.
The JETRCNIC LE 3.2 electronic system consists an inductive discharge
transistorized injection system equipbed with a control unit (CU).
The ignition, how,ever is ensured by an
electronic ignition system equipped
with an electronic power module.
The data necessary for controlling the
system is colfecfed by means of sensors that transform the data into electrical signais.‘This data concerns:
battery voltage
l
.
position of the accelerator throttle (comoletely closed or open)
troinjectors for this time. Since the difference between fuel pressure and air
pressure in the manifold is mantained
constant by a regolator, the quantity
of fuel injected, is proportional to the
delivery time.
Furthemore the injection CU is able to
carry out from~ time to time certain
operations considered necessary under certain engine conditions (e.g.
electroinjector for cold stafl, interruption of fuel delivery when engine is decelerating).
The injection CU also controls the delivery’ of the fuel1 p’ump.
air intake temperature
engine coolant temperature
quantity of air taken in by the engine
.
quantity of oxygen present in the
exhaust gases
.
engine r.p.m. (fromsthe distribut o r )
The electronic CU calculates the opening time of the electroinjectors with
relation to the instantaneous r.p.m.
and load condition of the engine.
Having carried out the calculation, the
CU sees to the opening of the elec.
.
,;
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JETRONI~C ~LE 3.2 INJECTION SYSTEM
‘,
‘,
The system’, vvhich consists of an air
system ancl of a~fuel system includes
t h e followirig:!
.
A~filter-equiboed fuel pump
.
a pulsation damper whose task is
to eliminate pulsations due to
pressure peaks
.
a8 pressure, gaug,e which keeps
constant pressure difference between f,uel system and intake manifold
l
!
.
,’
f o u r e l e c t r o i n j e c t o r s mwhi,ch, l
owing to pressure gauge, supply ~
a f u e l q u a n t i t y dependent’ o n ~
.
their opening time
an air flow sensor, which measu.
res ait taken in by engine (adju.
sted in relation to air temperature)
supplementary air solenoid valve
suppliyng extra air ,when the engine is cold
.
~
a switch on accelerator, throttle rei cognizing the two cases of open or
~closed throttle
an engine Coolant temperature sensor for injection CU
an rpm sensor
pipes andl electrical wiring, including remote control switches and
CU (inserted in air flow sensor)
a lambda, probe determining oxygen differences, in exhaust gas,
with respe,ct to thesair (only for models with catalytic converter):
.
.
‘,
‘!hNITIqN SYSTEM
This system consists of:
i
an el,ectronic ‘power module
a high V~oltage shock generating
t
coil ‘1~
.
.
a h i g h v o l t a g e d i s t r i b u t o r s u p - ‘, . electrical iwiring at low and h/gh
plying power to spark plugs
voltage ~
four ignition spark plugs
8,
04=2
H
PA 32 790088330 1
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l
FUEL SYSTEM
AIR, FUEL, FUEL VAPOU’R SYSTENl CHART
,,” ‘1
1
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PA32~9qO883301
October 1988
,:t
8’~!
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INJECTION SYSTEM WIRING DIAGR’AM
I
------.-..C ~-__--s&?y$
Q
PA327900883301
qctober 1988:
i
i
~,;
l
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MA/N, COiMPQNENTS
FUEL PUMP
The pump is of the rotating type with
cells Sand rollers, driven by an electric
moto; which remains immersed in the
fuel under pressure downstream the
pumping ,unit. This arrangement results~in ~a reduction in noise and furthermore the fuel under pressure acts
as ~a~ hydraulic support between the
spi’ndle Iand relative supporting bushesl The ‘pump delivers more fuel
than the engine effectively requires, in
orde? to maintain effective pressure in
the supply system under all’ possible
operating conditions, If the key is inserted in the ignition and turner to the
“MAPCIA” (running) position, the
pump is not supplied with power;
when the key is turned on the “AVVIAMENTO” (starting) position, the cqntrol unit’measures the r.p.m. from igni‘tio,n ,distributor and, when this exceed~s a ,determined value sail control
unit seessto supplying the fuel pump.
Whit’ this electrical safety circuit, in
the case of a faulty electroinjector
,wifh~ ingition inserted, one prevents
the corrisponding circuit ‘from being
filied with ‘fuel.
FUEL PRESSURE REGULATOF)
The fuel under pressure enters the lower chamber of the regulator and acts
on a membraneiwhich, overcomin~g the
action of a spring, rises togheter with
a small plate and openslthe passage
to tank return t,ube. In addition to the
regulating function of the spring,
‘which has a fixed setting, there is also
that of the vacuum pressure of the
supply manifold transmitted to the’re‘gulator Upper chamber via a hose connected to the manifold.
When this pressure from the supply
manifold increases the membrane rises, opening the fuel return passage
and determining an equal decrease in
the fuel pressure itself. Thepurpose of
this additional adjustment is’to maintain the jumps in pressure”between
the fuel upstream the electroinjectors
and the air in,the manifold constant. In
this way the fuel delivered depends’exclusively on the opening time of the
electroinjector itself. .
!,
1 Fu:el p,ump
SUePLEMENTAtiY ,AIR
SOLENO,ID VALVE
The iupplementary air solenoid valve
determines, with the engine cold, the
passage of supplementary air to the
engine by means of the accelerator
throtfle by-pass.
A bi-metallic lamina inside the’valve is
affected by the temperature of the cy
lindei head in such a’way as to obtain
maximum closing of the’by-pass when
the engine is hot. In addition to this, a
heater winding heats the lamina and
closes the by-pass more quickly than
would occur with the heating of the
whole engine mass.
1 Hammering
2 Pressure regulator
3 Vacuum, tube
DAM~ER
Thei damper is connected upstream
the fuei distribution tube. The function
of the ‘damper is to eupress hammerings ‘that cari occur especially when
the :engine is running on low r.p.m..
The~ hammering is generated by jumps
in fuel! pressure that arise from the
opening and closing of the electroinjectors or the pressure regulator.
P A d’2 790088330 1
An ete,ctroinjector consists essentiaffy
of a
coil, a moving tore, a guide for the
needle and the needle. The tore of the
moving magnet is in one piece with
the needle which is pressed against
the sealed seating of the body of the
electroinjector by a spring. the needle
of the electroinjector ‘is opened as a
resultiof magnetic field created by the
magnet and this is effected when the
electronic CU sends an appropriate
electric signal.
The stroke of the moving tore, and
theretore of the needle, is very limited
(0.15 mm approx.) as a consequence
of a stop disc which has the purpose
of preventing the moving tore from
banging against the fixed interna1
part.
The opening ‘tirne of the ‘needle is 2-10
ms according to the ‘signal arriving
from the CU. The tip of the electroinjector is fitted with a thermal insulating bushing in teflon, the purpose of
which is to prevent the evaporation of
the fuel and the consequent crystalisation of the dry deposit on the needle. This bushing #,must not therefore
be’removed when fitting the electroinjector.
ELECTROINJECTORS
There is one electromagnetically actuated injecter for each cylinder; the
electroinjectors are connectedelectrically in parallel a n d /nject simultaneous!y once for each rotation bof the
crankshaft half of the necessary quantity of fuel.
October 1988
04-5
i
i ,,
i
FUEL SYStEM
8’
a full load contact. In this way a signal
is sent to the electronic CU when the
‘en’gine is running under conditions of
‘full load and the CU is able to alter the
air-petrol ratio according to the requirements of th,ese engine conditions.
When the aceelerator is released the
fuel supply is tut off by means of the
minimum throttle opening switch.
When the accelerator throttle valve
closes and the engine r.p.m. (s higher
than 1600 r.p.m., the fuel’supply is tut
off until the engine r.p.m. cornes down
to: 1100 rpm approx., where ‘the fuel
supply is restored. The main purpose
of fuel tut-off when the accelerator is
released is to reduce both fuel consumption and the emission of unburnt
hydrocarbons which usually form during this phase.
,The purpose! of’ the device is to give
‘smoother’engine running when the en,gine is qold,, compensating for the
greater resistances, due to friction,
‘4th an increased fuel supply.
1 Air flow sensor
C O O L A N T
T E M P E R A T U R E SENSOR ~~ ~~
~, IQLE ADJl/STMENT B Y - P A S S
J Supplementary
A
air solenoid valve
I
R FLOW~
$ENSORJ~~NTR~L
1
UNIT
The air flow sensor has the task of furnishing the e(ectronic’CU with an electrie signa!, ;by means of a potentiometer, with re’lation: to the air flow taken
jn by the engme!This signal is used by
tbe CU to ;determine, the duration of
the injection itime.
The sensitive element is a floating
throttle which opens according to the
amount of air taken in (a function of
the engin+ r.~p.m. and the opening of
,the accelerator throttle). The angular
~Position of~the floating throttle is measured by a ~poientiometer which is
~~firmly fixed to the spindle of the floa,ting throttle Itself.
A compensating throttle coupled to
the floating throttle compensates for
any oscillations in the pressure of the
,flow due to badkflow that may occur,
~eo’that thesd do not affect the measu,rtng of the air fl;ow.
#A sensor for measuring the temperatuire of the a,ir tak~en in is located at the
,~entrance of lthe, air flow sensor. The
$lectr,onic CU for the control and mo‘initoring off the whole injection system
~$s loc’ated ‘in~ the Upper part (caver) of
‘/the air flow sensor.
_
,’
When starting the engine from cold,
during the warming up of the engine, ~ A tube connecting the corrugated air
intake sleeve#with the supply manifold
the engine requires a considerably enacts as a by;pass to’ the accelerator
riched mixture. This enrichement must
throttle; the ‘amount of air that cari
be reduced as themtemperature of the
pass through, this tube cari be varied
engine increases and eliminated when
the engine reaches normal running’ i ,, by means ofI an adjusting screw. By
acting on this adjusting screw the’jdle
temperature.
r.4.m. of the. engine cari be altered wiThese variations in temperature :are
thout affectrng.the exhaust CC%.
transmitted to electronic CU by the, ~’
coolant temperature sensor and the: ~ ‘, In;fact, the variation in the amount of
air taken in by the engine whsn this
CU then control the quantity of fuel in- ”
screw is adjusted is measured by the
jected.
air flow sensor which in turn provides
for the proportional correction of the
quantity of fuel that is injecfed.
1 Engine
coolant temperature sensor
SWITCH ON BODY
OF ACCELERATOR THROTTLE
The switch on the throttle body is firm- ,.
ly fixed to the spindle of the accelera- ~
tor throttle valve. The switch contains
04-6
‘October 1 ,,
9 8 8
1 lLo6k n u t
2 r~ldle r.p.m: adjusting screw
PA32 790088330 1
A
”
The iollowing components are fore
seen ~on~ly on models with catalytic
converter.
FiLtiEl+INLET F O
U,F$EADED PETROL
R
Thé filIer inlet of the fuel tank is fitted
with ~a special device which prevents
‘filling with petrols other than those
whlich are unleaded.
O’nly lthe~ delivery nozzles of unleaded
petrol pumps are able to pass through
the ne& of the filler inlet, thus opening ~the valve and filling the tank.
LA~B~A
P;ROBE
The sensitive element of the lambda
probe consists of a ceramic capsule
coated wlth porous platinum on both
sides; the external side cornes into
contact,with the exhaust gases, whilst
the /nternal side cornes into contact
with’atmospheric air.
The ~difference in the oxygen content
between the air of the atmosphere and
the r$xhaust gases is transformed into
a n 8ele,ctrical potential difference
aqross ~the two sides of the capsule.
Thisi electrical signal is ‘sent to’ the,
electronic CUwhich carries out those
correct)o’ns necessar = y for obtaining
the stechiometric air-petrol ratio required for the maximum operating efficenqy of the catalyst, thus keeping
harrhful ‘emissions contained in the
exhaust gases to a minimum.
The probe is electrically preheated to
obtain a,faster response time.
CATALYTIC MUFFLER
A catalytic converter is mounted in the
exhaust system with the purpose of
reducing exhaust emissions. The converter consists of an alumina,monol/th
coated with anactive material composed of noble metals and housed in a
special steel container which is resistant to high temperatures. The system converts’the HC and CO semissions contained in the exhaust gases
into waterand CO, (non-toxic substances).
The catalyst is efficient within a certain temperature range. At low temperatures no catalytic conversion occurs. High temperatures cari cause deformation of the metallic container
and deterioration of the alumina’and a
consequent loss in the efficency ,of
the operation ~of the catalyst ~itself.
High temperatures cari be caused by
an excessive quantity of unburnt fuel
passing through the alumina, following overloading of the engine or by
the engine being badly tuned and out
of adjustment.
*
1 Catalytic muffler
,
:’
FUEL ~APOUR~EMISSION
CONTROL SYSTEM
Fuel va ours emanating from the fuels
4 are collected, by means of a’
tank d
special tube 0 in a liquid vapour se-’
1’
parator@ which-is arranged in such
a way as to permit the return of condensed fuel to the tank.
The tank has a sealed filler cap to prevent fuel vapours from escaping into
the atmosphere.
The fuel vapours coming from the separator 0 through the Upper outlet,
are conveyed to a fuel vapour filter 6B.
The vapour flow is controlled by a valve q which opens or closes the passage’to the fuel filter in relation to the
vacuum pressure existïng upstream
the throttle body. When the vacuum
pressure is lower than the specified
value (e.g. with the engine switched
off or on idle) the dump valve is closed
and prevents vapours from flowing to
the vapour filter. If this is not the case
(engine running under normal conditions) the valve is open and the fuel vapours are able to flow to the filter where they are absorbed by activated carbon.
As a result of the difference in pressure existing inside the vapour filter, the
activated carbon is “washed” by a
current of air.
The vacuum pressure is taken upstream ;the throttle. In the “washing”
action, the fuel vapours mlxed with atmospheric air are conveyedto the supply manifold where they are added to
the air taken in by the engine.
Should the pressure in the fuel vapour
separator tend to a drop when the engine is stopped, due to a fall in temperature, a compensation valve @ situated in the fuel vapour recovery tubing @ between the separator 0
and~the vapour filter @ , lets in atmospheric air thus maintaining the system at atmospheric pressure.
Thel dump valve @ as an interna1
spring which is set in such a way as to
open the passage should the vapour
pressure in the tank be excessive. In
this, case the fuel vapours cari be discharged into the vapour filter @
and: held in the activated carbon’of the
fiiter i t s e l f .
1 Lambda Probe
PA~2~9E0883301
October 1988
l
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1 Fuel vapour intake tube
2 Vacuum pressure tube for dump valve
control
3 External air delivery tube
4 Fuel tank
5 Fuel vapour breather; hose
~6 Compensation valve
7 Fuel :iapour separator
8 Fuel ‘vapour recovery tube
9, Dum&+e ,
10 Fuel !vapour filter
~
IMPORTj’ihjT GENERAL DATA
,’
Never istart the engine when ‘the
battery latiles are not properly
connected.
TO star-t the engine, never use a
rapid baftery charger.
Never discdn,nect battery from vehicle’ electrbnic system when the
engine is started.
In no case use a rapid battery
3 charger.:
~
Octoper ‘91’
1,
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When painting in furnace at temperature over 80 OC, remove the
electronic control unit.
Make sure that screened wire
connections are properly connected.
Never connect or disconnect electronic CU conductor plug when
ignition is switched on.
Never connect to ground high or
04-8
.
low voltage tables, for testing.
Should any accessories be mounted on vehicle, it is always advisable to disconnect electonic CU
and to check the functioning accessories with the CU disconnec~ ted. It isi very strongly advised never to connect any leads (other
than those of the CU itself),to the
wiring of the CU.
PA3279E0883301
71
FUEL SYSTEM
1
2
3
4
5
Air filter
Air flow sensor
Corrugated sleeve
Throttle body
Air inletloutlet hose from supplementary
solenoid valve
6 Metal fitting
7 Oil vapour exhaust hose
8 Vacuum pressure intake tube
9 Fuel vapour circulation pipe
10 Fuel vapour fllter
11 Air manifold
12 Extra air solenoid valve
13 By-pass tube to set idle rpm
14 Air intake sleeve
(‘) only for vehicles with catalytic converter
,
FUEL SYSTEM
,,
AIR FLOW SENSOR
AIR FILTER
The body of fhe air flow sensor incorporates the blectronic control unit for
the pilotiqg of the fue! injection syStern.
REM,OVAL
1. Disconnect the multipolar connector @ from the body of the sensor
0.
2. Loosen the clips securing the ducts
0 and 0 and detach them from
the air flow sensor.
3. Unscrew the three screws shown in
the fi ure and remove the air flow sens o8 r 2 .
4. Only if necessary, unscrew tbe four
screws (one ‘of which lies beneath a
sealed plug) and remove the caver of
the air flow’ sensor. The electronic
control unit is coniained in the caver.
@-
6
7
6
9
10
1 Air filter caver
‘ 2 C l a m p
3 CU flow meter
4 Corrugated sleeve
5 Adjustment kcrew to fix air filter container
to body ~
1
2
3
4
CHECK AND INSPECTIONS
REMOVAL:
,Disassemble’ air cleaner body as follows (see figure):
1. Unfast the clamp @ and disconnect air cleaner caver sleeve from air
flow sensor 0.
21 Unfasten the four spring clips securing caver 0 and remove it; remove
the filtering element @ .
3. Unscrew three screws 0 securing
cartridge @ to body; remove filter
container @ with spring element
0 and spabers 3 disconnecting
sieeve @ from air intake.
4. In necessary, loosen clamp and disconnect sleeveGI from container
63.
:,
0
October 1988 ~
Air filter container
Spring element
Spacer
Air intake sleeve
Filtering element
Thoroughly clean filtering element by
blowing low pressure compressed air
through the filter in the opposite direction to that of the normal air flow. If
necessary, replace filtering element.
CHECKS AND ADJUSTMENTS
Press gently on the floating throttle of
the air flow sensor and check that it
rotates freely and smoothly as far as
the travel stop. If necessary, clean the
interna1 surfaces of the air flow sensor
with a cloth. ~
ASSEMBLY
Assemble air flow sensor/CU following disassembly procedure in reverse sequence.
.
Position the filtering element in
the container SO that the folded
protrudding part is facing downwards.,
04-l 0
Air inlet duct
Air flow sensor
Corrugated air intake duct
Multipolar connecter
REFITTING
l
Refit the air flow sensorlelectronic
control unit by reversing the order of
its removal. i
If it is being replaced, proceed to the
checking and adjustment (if necessary) of the exhaust CO% (see Setting
and Adjustments).
PA3279E0883301
r
FUEL SYSTEM
SUPPLEMENTARY AIR
SOLENOID VALVE
4. Remove plastic caver @ .
6Unscrew the two ftgure-shown;bolts
fixing starter 0 and remove it.
CH~ECK AND ISPECTIONS
1; Check solenoid valve opening
a. Make sure that the engine is cold,
then start and throttle several times
outlet tube 0 of solenoid valve @
b: Check that engine rpm falls and continues ito fait with the passage of time
(at rooin temperature of 20°C no fall in
r.,p.m. Will be noticed after 3 minutes).
One of the bolts fixes ground supports
and battery negative terminal
81 .
2. Check solenoid valve closing
1
2
3
4
V$fh the engine at normal running temperatu’re, throttle outlet tube 0 of solenoid,valve and make sure that engine
rpm does not decrease.
Air outlet tube
Solenoid valve control table
Supplementary air solenoid valve
Air inlet tube
THROTTLE BODY
REMOVAL
1. Rotate accelerator control lever @
and withdraw pawl on end of accelerator table.
2. Remove lock ring and withdraw
sheath end from bracket @
3. Loosen clamp and disconnect tubes
@ from throttle body @ .
4. IDisconnect c o n n e c t a r 0 f r o m
switch.
5. Loosen fixing clamp and disconnect
sleeve @ from throttle body.
i@
I-Baftei~ negativë cible
1 Air outlet tube
2 Supplementary air solenoid valve
3 Air inlet tube
REPLACEMENT
1. ~Disconnect battery negative termin a l .
2,~Remove air filter caver, air flow sen~r~~~o~~~~$~l~~@
from starter 3 .
PA3279E0883301
and @
2
3
4
6
6
Ground support
Starter
Starter energization table
Starter supply table
Cover
6. Disconnect connecter 0.
7. Loosen clam s and disconnect tubes @ and 4dfrom solenoid valve.
6. Unscrew fixin screws and remove
solenoid valveQ
3.
9. Proceed to assembly operating in
reverse order in respect to removal.
04-I 1
1
2
3
4
5
6
Sreather tubes of engine COOting system
Acceterator throttle switch connecter
Corrugated sleeve
Accelerator control lever
Bracket
Throttle body
October 1988
FUEL SYSTEM
6. Disconnect depression tube 0.
7. Unscrew four fixing screws and remove throttte body @ and gasket
f r o m supply~,manifold @ .
REMOVAL
Proceed to assembly operating in reverse order in respect to removal, following these instructions:
.
Fit a new gasket between throttle
body and intake manifold.
.
Effect ‘calibration and setting
(see: Calibrations and Settings).
The two upper screws fix braket @
aswell.
1
2
3
4
Cracket fixing accelerator table sheath
Throttle body
Depression tube
Supply manifold
~ImNTAK~ ~MANFOLD,
(AIR INTAKE BOX).
1
2
3
4
5
6
7
6
Intake manifold
By-pass tube to set idle rpm
Supplementary air feed tube
Servobrake depression tube fitting
Gaskets
Throttle body switch wiring
Cooling,system breather pipes
Sheath fixjng bracket of acceleratorcable
9 Throttle body fixing screw to
manifold
10 Corrugated sleeve
11 Accelerator control table
12 Lock ring
13 Accelerator table sheath
14 Depression tube for ignition advance
pneumatic regulator
15 Throttle body
1 6 G a s k e t
17 Depression tube for fuel vapour cleaner
(for models with catalytic converter only)
18 Depression tube for fuel pressure
19 Engine lifting bracket
20 Nut fixing supply manifold
REMOVAL
1 /
With reference to figure, operate as
follows:
~
Qctober 1 9 8 8
1. Remove air filter caver and air flow
sensor.
04-l 2
2. Rotate accelerator control lever and
unhook pawl at accelerator table end
0.
PA3279E0883301’
II
FUEL SYSTEM
3. Remove lock ring 0 and disconnect’sheath @ from bracket a
4. Disconnect wiring @.
5. Dfsconnect tube @ from throttle
body.
6. Ldosen clam s and disconnect tubes @ and 63 from manifold 0.
7. Disconnect tubes 63 C$d @
from manifold and tube @ from
throttleibody; (only for models with catalytic converter).
6. Unscrew fixing c9 and separate
servobracket depression tube from
manifold.
9. ‘Loosen clamp and disconnect sleeve @ ‘from throttle body 0.
PAd279E0883301
10. Unscrew three nuts @ on each
manifold end and remove manifold
with gasket 0.
Central nuts also secure the engine lifting brackets @ .
11. If necessary, remove four screws
@ and separate throttle body @
with gasket @ from manifold.’
Two u per screws also secure brackets 6 8 .
04-13
ASSEMBLY
Proceed to assembly operating in reverse order in respect to removal, following these,‘instructions:
.
Fit new gasket between:
.
.
,- Throttle body and manifold
- M a n i f o l d a n d ducts o n
heads.
~Effect check and, if necessary,
‘adjust accelerator control table
(see: Group 00)
Effect check and, if necessary,
adjust idle rpm (see: Group 00).
October 1988
A
s!0
12
3
4
5
E
Pressure
l e c t r o i ngauge
jectors
Fuel filter
Fuel supply tube
Tube support spring
6
7
8
9
10
Ground table
Fuel tank fixing st!ap
Fuel level gauge assy
Level gauge fixing screw
Tank
(‘) only for models with catalytic converter
11
12
13
14
15
Filler pipe
Fuel pump
Excess fuel recovery pipe
Pulsation damper
Fuel supply hose
.
.
,’
- FUEL SYSTEM
-
DAMPER
FUEL PilMP
REPLACEMENT
REPLACEMENT
2. Disconnect electroinjectors connectors one,by one; each time detect CO
percentage at exhaust and check that
value remains constant at all checks.
1. Loosen clamps and disconnect fuel
inlet and outlet tube 0 and @
from damper.
3. If this is not the case, locate the
faulty electroinjectr and replace it.
(seei Replacement).
1; put ‘the vehicle on auto lift and disconnect battery negative terminai.
2: Operating from below the vehicle,
left rear side, disconnect tables 0
the
,a.
supplying
puma
3. linch tubes @ and @ , then loosen champs and disconnect tubes
from the pump.
WARNING:
Be careful: fuel system could be
pressurized
2. Unscrew figure-shown fixing nut
a8 remove damper @ from bracket
3
4. In all cases, a visual index of electroinjectors functionality is provided
by comparing spark plug electrodes.
- A too-rich mixture shows black
colour.
- ~A too-poor mixture shows light
colour.
CD and extract the
REPLACEMENT
1. Disconnect battery negative terminal.
2. Disconnect supply wiring connectors 0 from electroinjectors.
3:Unscrew figure-shown fixing screw
and lift the fuel suppl,y hose 0
freeing it from electroinjectors.
1,
2~
3
4
5
Fuei outlet tube from pump
Fuel pump
Fuel inlet tube into pump
P’ump supporting clamp
Pump supply table
1 Damper
2 Fuel inlet tube into damper3 Support
bracket
~
4 Fuel outlettube from damper
‘,’
WARNING:
Pay attention SO that residual pressure in the .tubing does not cause :
sprays of fuel.
3. Refit a new damper working in reverse order respect to removal.
ELECTROINJECTORS
5. Mount new fuel pump fixing it with relevant clamp, then reconnect b%es.
CHECKS AND INSPECTIONS
6. R’econnect pump supply tables, being careful to connect the correct lead to the cor:
rect terminal.
7. On completion of refitting, remove pliers
on imlet and o’utlet tubes and reconnect battery.
PÀ32:79EO883301
Check on correct electroinjectors opening
1. Detect CO percentage at exhaust
(see: Group 00 - Engine Maintenance).
04-l 5
October
1988
~
FUEL PRESSURE
G
A
U
G
E
4. Effect assembly operating in reverse order in respect to removal.
REPLACEMENT
WARNING:
Operate carefully: fuel system
coud be pressurized.
1 Fuel supply ihose
2 Electroinjectors supply wiring
‘4. Remove e,lectroinjectors 0 com:plete with b-ring @ ‘ancl gasket @
1. Unscrew the two connecting fittings
oEue supply hose @ to regulator
’
2. Disconnect tube 0 from regulator.
3. Connect tube @, unscrew f lg$:
shown nut, and remove regulator
-.
.-
1 Fuel supply, hose
2 Electroinjectors
3 G a s k e t
0-ri’ngs
4
~
5. Proceed to asseq7ply operating in
reverse ordb in respect to removal,
following ;these instructions:
,- Replace all O-rings and gaskets.
- Positioh electroinjector and relevant cdnnector ‘outward.
-
Reco,nRect all components removed’at iemoval time.
October 7988
1
2
3
4
Pressure regulator
Depression tube for pressure regulator
Fuel supply hose
Excess fuel recovery tube
04.16
PA3279EO883301
r,
FUEL SYSTEM
FUEL VAPOUR EMISSION CHECK SVSTEM
For electronic injection 1.7 ,engineq, with cataly;tic conve’rtor
PA333500883300
May 1 9 8 8
FUEL SYSTEM
FUEL, VAPOUR
SEPARATOR
2. Disconnect’ valve @ from fuel
recovery tube circuit.
REMOVAL AND ASSEMBLY
1. Move, away left side covering of
trunk.
:
2. Loosén Aamps and disconnect
tubes 0~ and @ from separator.
~
i
3. Unscrew t h e t w o s e c u r i n g n u t s
indicated in the fig,ure and remove the
s e p a r a t o r ~@
1 Retainer valve
3. Ceck that valve works properly that
is, that otherwise, replace valve it allows
the passage of air only in the direction
shown by the arrow.
1
1 Fuel vapour recoverv tube’
2 Fuel vapour separator
3 Fuel vapour exhaust pipe
Fuel vapour recovery tube
Dump valve
Depression tube
Supply tube to fuel vapour filter
Proceed to assembly operating in
reverse order in respect to removal,
properly repositioning the valve as
shown in previous figure.
4. If nec!essary, blow compressed air
inside the separator to clean it.
5. For essembly, operate in reverse
order in respect to removal.
4 . P r o c e e d to assembly in revers&
order in respect to removal, properly
repositioning the valve as stated in the
figure in step @
FUEL VAPOUR FILTER
COMBPENSATION VALVE
DUMP VALVE
REMOVAL AND ASSEMBLY
REMOVAL AND ASSEMBLY
REMOV:AL, CHECK AND
INSPECTIONS, ASSEMBLY
i
1. Partially remove the trunk left side
coverin&
May 1’988
1. Discohnect tubes 0, 0, a n d
@ from filter.
1. Operating in the engine compartment, front left area’below fuel vapour
filter, remove valve @ from tubes
2. Unscrew fixing screw positioned
under filter @ , lift it and remove it.
@,@,and@.
04-l 8
PA333500883300
i,
FU:EL S Y S T E M
1
2
3
4
External air
Fuel vapour
Fuel vapour
Fuel vapour
tube
intake tube
Inlqt tube
fllter
3. For assembly, operate in reverse order in respect to removal.
CALIBRATIONS AND ADJUSTM~ENTS
For electronic injection’ 1.7 engines only
CA;LIBRATIOW T,HROTTLE BODY
(Fviow)
1,. Loosem clamp and disconnect sleev,e ~0 fiom throttle body -0 .
2. Disconnect depression tube under
,tprbttle’body @ and suitably plug
thq relevant fitting.
3. Loosen switch @ fixing screws on
throttle body.
4. Disconnect accelerator control cable.
5. Verify throttle body calibratioh with,
a flowmeter, working as follows:
a. Dismantle C.2.0056 buffer, separating it from the relevant threaded
Stern.
b. Screw C.2.0057 fitting on buffer, and
screw the threaded stem on fitting (as
per figure).
c. Connect flowmeter to C.220056 buffer and rest buffer on throttle bpdy.
cl. Measure air flow through the throttle and check that this is within the
specified values (plug the air intake fitting on the throttle body).
Blowby of air: accelerator throttle in
the closed position (Solex flowmeter):
400 ~10 on N scale
1 Throttle body
.,
2 Cbrrugated sleeve
3 Akcelerator control table
4 Accelerator throttle switch
P A 32 790088330 1
04-I 9
October 1988
_
I
,”
FUEL SYSTEM
~,6. If you do& detect specified values,
~proceed to setting.
~a. Break seal 0 and act on adjusting
screw 0~ u?til speciofied flow value
is obtained.
3. Rotate throttle 60° f 4’ and check
full load contact closed, detecting following resistances on male connectors, with tester.
- With accelerator throttle open by
an angle of a3 60” f 4O between
terminals 3 and 13 one must detect a resistance’of 0 approximately.
4. If these value are not detected,
check accelerator control of replace
switch.
1
/-o
Whenever detected values are higher
than maximum specified values,
check power supply components and
if they are faulty, replace them.
WARNING: ~
CO percentage setting and exhaust
-.shoul be carnied out, if necessary, only
if ‘an air flow ‘sensor and electronic CU
have been replaced.
Operate as stated below::
1.~ Remove seal cap
b. On completion of the setting reseal
the seating ~of, the adjusting screw
#with the relative cap.8
,17. Remount disconnected compo~nents operating in reverse order, then
!:effect further setting.
ACCELERATOR
TH-ROT;TLE
SWITCHs
CALIBRjITION
1. Disconnect female connecter from
“throttle swhch.; Check on male connectar the: following resistances with
a tester. ~
a. With throttle entirely closed between’terminals’2’and 18 one must detect a resistance of ablout 0 .
b. Slowly rotate throttle: with tester
,between terminals 2 and 18 one must
#detect an’ infinite resistance before
throttle bas rotated by 1’ with respect
to fully closed position.
2. If this Con~dition doesn’t take place,
lbosen screw @ and rotate switch
“until the con’tact is obtained (resistan‘lce ~0 ) between terminals 2 and 18
with completely closed throttle; then
tighten screws again.
,October 1948
1 A i r f l o w ~sensorlelectronic C U
2 CO Setting screw seat sealing cap
1 Screw fixing switch to throttle body
2 Idle rpm terminal (it corresponds to position A: closed throttle)
3 Max. rpm (it corresponds to position B:
open throttle)
CO PERCENTAGE
TIMING AT
EXHAUST
Detect CO percentage on exhaust gas
following the procedure stated in
Group 00 - Engine M.aintenance - Exhaust Emission Control.
04.20
2. Start engi’ne and run it to normal
running temperature.
3. Connect a suitable exhaust gas
analyzer on exhaust pipe outlet.
4. Cautiously act on CO percentage
adjustment screw until specified value
isobtained.
5. When this operation is complete,
put a new seal cap on CO adjustment
screw Seat.
PA 32 790088330 1
r
FUEL SYSTEM
~
ELECTRICALIELECTRONKI
COMPCUVENTS’
For electronic injection 1.7 engines’ only
ELECTRONIC
CONTROL UNIT
2. Unscrew four fixing screws shown
in figure (one of which is under seal
cap).
CHECK OF FUNCTIONING
4. Remount CU operating in reverse order ‘in respect to removal, then apply a
new seal cap (in screw Seat). If CU has
bee~n replaced, proceed to check and if
necessary, to effect setting of CU percen’tage at exhaust (see: Calibration
and Setting).
1. Make sure that lambda probe is effitient (see: Group 00 - Electrical Troubleshooting Procedure - Test No. 8).
ACCELERATOR
THROTTLE SWITCH
2. Start the engine, run it to normal
running temperature and keep it at
idk? r.p.m.
,;,
REMOVAL AND ASSEMBLY
31 Connect a suitable exhaust gas
analyzer at exhaust pipe outlet and detect CO percentage of gas (with lambda probe connected).
1. Disconnect connecter 0.
2. Unscrew two fixing screws and remove switch @ from throttle body
0.
4. Disconnect depression pipe from
pressure regulator .and meanwhile
Iook at exhaust gas analyzer Sauge.
- If CO percentage rises momentari\y and then goes down to normal
values, this means that CU works
properly (When it is informed that
mixture is too rich it Will reduce injection time).
- ‘If CO percentage rises and stabilises at high values, this means that
~CIJ is not able to correct CO per6entage. One cari deduct that CU
dis faulty (since lambda probe is to
ibe considered as efficient following check effected and Step 1).
1 Electronic control unit
2 Multipolar connecter
3. Remove CU 0 with seal gasket
0.
SEMQVAL AND ASSEMBLY
1 Connecter
2 Throttle body
3 Accelerator Throttle switch
ThA electronic CU is built into the air
f!ow sqkàor caver.
If necessary, remove CU from air flow
sensor and operate as follow.
3. Fedmount switch operating in reverse order in respect to removal; then effect switch .setting (see: Calibration
and Setting).
~ ~
1. !Disconnect multipolar connecter
Q.
i’(3279EO883301
2 Gasket
3 Air flow sensor
04.21
October 1988
1
2
3
4
5
Gaskets
Front manifolds
Nut
Plug for CO% sampling upstream catalytic muffler
Support ring
6
7
8
9
Catalytic muffler
Gasket
Lambda probe
Buffer
10
11
12
13
Rear muffler
Clamp fixing bolt
Clamp
Nuts fixing manifold to heads
FUEL
SYSTEM
lp;RkCAUTIONS TO ADOPT FOR CATALYTIC MUFFLER EQUllPPED VEHICLES
.
Use only lead free petrol.
.
Avoid petrbl level in tank from becoming very low.
.
Dhn’t start engine with a disconnected spark plug.
.
.
Dlon’t overload excessively the engine for long periods of time. Be careful whep towing uphill for long periods.
DP not switch ignition off while vehicle is moving. Ignition is to be switched off with vehicle stopped.
.
D:o net stop or park car on or near inflammable materials (dry grass, fuel residuals, dry leaves, wastes, etc.).
Cl$CKS AND
INSPSCTIONS
1. : Check mufflers and exhaust pipes
makit/tg sure they are not in any way
damaged or cracked and show no evidenc$ of corrosion; contrarywise,
replace jhem.
Cata(ytiC m u f f l e r m u s t b e always
rep’la%ed at ,I<m interval stated i n
“Group 00 - Vehicle Maintenance
Chat?‘.
~
2. Thoroughly check support ring
and do ?ot hesitate to replace them if
they mare cracked, porous or worn.
3. check buffer on exhaust pipe
end.
MANIFOLDS AND
MUFFLERS
Referring to the figure proceed, with
removal as follows:
1. Fiaise car on lift.
2. Remove rear muffler as,foli,qws:
( 1 ) L o o s e n clamp @ connecting
central element with rear pne’ an’d
release this one from support @taining rings@.
(2) With a suitable hammer, lightly
and repeatedly strike all around the
muffler pipes ‘connection are? and
then alternately turn muffler @? clockwise and counterclockwise SO as to
make separation easier.
3. Fiemove central muffler @ as
follows:’
(1) Operating from below the engine
room. d i s c o n n e c t connectors @
shown; o n f o l l o w i n g p i c t u r e a n d
disengage plastic clamps wirings
1’
REMOVAL
WARNI’NGS,:
-’ ~Instructiotis hereafter described
~have been drawn up S O a s to
~allow separate removal of the
~exhaust system’s single com‘ponents.
- C o n s e q u e n t l y , removal p r o (cedure may be changed depend‘inri on the operation’s purpose.
- ~When rem- .ng t h e entire exhaust system, it is advisable to
~get someone to help you with it.
P(li’33500883300
1 Lambda probe connecter
(3) If necessary, use a plastic hammer and lightly strike the muffler ‘in the
direction of removal till rear muffler
cornes off the central muffler.
04-23
(2) Remove muffler (refer to item 2.
above).
May 1988
(3) Unscrew nuts @ securing catalytic muffler @ and exhaust manifold
‘I@.
~
(4) Free! cetalytic muffler @ support
SUPPORT
RINGS
”
Verify integrity of support rings and
replace them if necessary.
brackets! f r o m lock r i n g s @ a n d
r e m o v e it.~
4. Remove manifolds @ as follows:
(1) Disconnect manifold @ from
catalytic muffler unscrewing nuts 0.
(2)’ Loqsen n u t s @ s e c u r i n g
manifold fl8nges to cylinder heads and
then remove rear element @ and
gasket ‘0.
INSTALLATION
Fit single parts back together following removal operations in reverse sequence and paying close attention to
below instructions:
04-24
a. Always fit new gaskets between
manifold flanges and cylinder heads,
and on flange between muffler and exhaust manifold.
b. Having completed installation,
check and make sure that support
rings move freely and are free of undue’ stress; check brackets making
sure they have been properly secured.
c. While engine is running check all
pipe connections for gas leaks and the
whole exhaust system for unusual
noises.
PA333500883300
\
.’
r
FUEL SYSTEM ~
~TROUBLESHO’OTING FOR
CATALYTIC MUFFLER
~
~MARNING:
:High’temperature of çatalytic muffler could damage,alumina monolith an! consequently weaken the conversion efficiency.
~It~co$d also damage the container and cause fire.
1,
_
Integrate troubleshooting of basic manual as follows:
8’
Corrections
Probables causes
Troubles
,’
Ov,erheating of catalytic muffler
Scaling of one or more spark plugs
l
Clean or replace spark plugs
Clean or replace
9 Clogged fuel filter
l
Very dirty air fi!ter cartridge
Replace
l
Accelerator not set properly’
Effect accelerator setting
. Engine and ‘relevant accessoires
.not set according to specifications
Effect accelerator timing
9 Imperfect exhaust manifold tightness
Eliminate -leaks
l
Battery voltage too-low (or faulty
recharge system).
Recharge battery (or review the system)
Catalytic muffler overheating could
.also be due to:
l
Fuel level extremely low in tank.
Keeb fuel at proper IeVel
l
Engine overloads for long periods
Avoid engine overload
of time, i.e.8 maximum speed rum,
drawing of trailers, or run on long
hilly roads.
PA3279EO883301
04.25
~
October 1988
i- ----~
~
,’
FUEL SYSTEM
l
~ SERVICE -DATA AND ~SPECIFICATIONS
For electronic injection 1.7 engines o$ym
TEC,HNICAL DATA
Litres
50
Overall,capa&
65
Rèserve
CHECKQ AND TIMINGS
Acceleratdr throttle switch calibration
2. Idle rpm terminal’
(corresponding to position A: closed,throttle)
3. Maximum rpm terminal
‘(corresponding to position 6,: open throttle)
,’
Unit:
Rpistances
TerminaIs 2-la8
Accelerator~throttle
completely closed
Accelératci~ t h r o t t l e oDen a t a n a n g l e 13 = 6 0 ” + 4 ”
T e i m i n a l s 3-18
0
ce
m
0
$alibrat/o~n accelerator throttle body (flow)
1 Seal
2 Adjustment screw
Fldw
di!ection _
3 Depression intake fitting
Reading
Air blowby with t’hrottle disk in closed position (flowmeter Solex) (1) :
400 + 10 N scale
(1) TO detect plug depression intake fitting. Use C.2.0056 buffer with C.2.0057.
O c t o b e r la88
04-26
PA3279E0883301
FUEL S Y S T E M ”
Abcelerator c o n t r o l
Clearance between throttle control and accelerator table pawl
(w;th accelerator pedal at rest)
tq’
-1
.
!
I
01 = 1 + 2mm
Cllearance between throttle control and stroke end
(with accelerator pedal fully pressed)
~~
i
-
G2=1+2mm
Idle rpm; emissi.on at exhaust
rpm
950 +‘O”
-50
- total, upstream catalytic
muffler with lambda probe
disconnected
56 i n v o l .
4 0,8 f 0,2
- total, at exhaust pipe
outlet
% in vol.
Engine idle rpm (at hot engine, in neutral, clutch engaged
/’
850+50
CC percentage at \dle rpm
- total, upstream catalytic
.:muffler
p.p.m.
- total, at exhaust pipe
outlet
p.p.m.
<
0,8 f 1,7
a2
< 500
H’C values at idle rom
,l
1’
~(*r) For models without catalytic converter
Fuel !supply system
kPa (bar; kQ/cm2 )
Working pressure (1)
2 8 0 + 320 (2.8 + 3,2; 2.9 + 3,31
I
400 (4; 4.1)
&ax. allowed pressure for system test
0) T O be detected upstream the damper, with depression intake hose disconnected from pressure regulator.
‘,
: GENERAL PRESCRIP~TIONS
FLUIDS AND LUBRIFI’CANTS
Application
Accelerator pedal spindle
(on support rubber
Denomination
Type
GREASE
ISECO Molykote Longterm’ n. 2
Categ. -3671-69831
,
~
~Pd3279EO883301
Oh-27
,’
~
October 1988
I
l
Position
&
!i
1st Carb.
central
I
I
RH
2nd Carb.
-RH
LH
Diffuser
0
mm
23
Centering device
0
MM
3.5
4.5
12189.01
3,5
Main jet
0
.
122
130
118
125
Main air jet corrector
0
.
180
170
180
190
F 6 8
F67
Diffuser
Idling jet
0
Idling air corrector
0
Progression holes
0
Needle valve
0
.
l
.
~~
I
175
24
II
120- 100
100 - 100
I
9164.01
~46
50
l
.28
LH
28
F67
48m
115
120-120
120
1
195
100 - 140- 140
100- 120 - 130
140 - 140
140- 150
.
175
150
175
9
li
10
Il,8
mm
-
0,80
0.90
Starting diffuser
-
7482.03
F7
2
Acceleration pump capacity for 20 pumps
-
7+9
6+9
2
Level of floas chamber
7
5+6
9 + 9.5
Float weight
Starting jet
2
0
fs
(0) Dimensions in 102 mm
(‘) Net marketed in all countries.
0
mm
2;
%
Displacement
1500
Type
305.88
.ENGINE
ALFA ROMEO
Part No.
580.778 - 580.777
M.odel
Twin DellortoDRLA40FD - DRLA40FS
CARBURETOR
Position
305.50
580.776 - 580.775
Twin Weber
’ 40lDF81 _ 40lDF80
LH
546.860 - 546.861
546.858 - 546.859
Twin Dellorto
~DRLA40FD _ DRLA40FS
Twin Weber
40lDF69 - 40lDF68
LH
RH
LH
RH
LH
RH
0
mm
30
30
32
32
Centering device
0
mm
12189.01
3.5
-
-
Main jet
0
.
135
140
142
140
Main air jet corrector
0
.
205
200'
180
190
9164.01
F70
9164.4
46
50
52
50
220
195
100: 140 - 140
140-140
106-120-130
140-150
Venturi
0
e
8
RH
-1700
1~
.
Diffuser
Idlino iet
0
.
220
Idlino air corrector
Progression holes
0
.
100-140-140
100-120-130
140-140-140
140-150
Acceleration pump jet
0
.
35
33 (incl. 3”)
35
35
Needle valve
0
.
150
175
150
175
9
10
11.8
10
11,8
mm
0,80
0,90
80
90
Float weight
.
Starting jet
0
Starting diffuser
l
Acceleration pump capacity for 20 pumps
Level‘of float chamber
'(0) Dimensions in 10'
mm
7482.03
I
F7
(
-
7482
5+7
6+9
5;5 S6.5
5+6
8.5 + 9.5
2oz22
l
F7
528
,l
‘,
FUEL SYSTEM
SPECIAL SERVICE TObLS
[
Identif(cation Number
~
Key for plug of exhaust gas
sampling fitting of Lambda probe
&2:0051
Fitting for exhaust gas sampling
of Lambda probe
October lg88
’
Denomination
4.5.0212,
C.2:.0056#
‘,
For electronic injection 1.7 engines only
8’
Buffer for air flow checking
to be used with C.2.00%
04-19
04-26
Fitting to be used-with C.2.0056
04-l 9
04-26
04.30
8’
Page peterence
PA3279E0883301
,i
~
~
Y
IGNITION, STARTING, CHARGINGN SYSTEM
C O N T E N T S
IGNITION
.........................
05-2
Checks and inspections . . . .,. . . . . . (*)
Reassembly . . . . . . . . . . . . . . . . . . . (*)
~Fuel: injection-ignition
~diring ,diagram
.................
(*)
Test stand, inspection . . . . . . . . . . . . (*)
~Technica,l data and specifications . . 05-2
Serviae ,data and specifications . . . . 05-I 0
D~istributor and ignition
Trouble diagnosis and corrections . ,. (*)
advance diagrams . . . . . . . . . . . . . . . 05-3
CHARGING . . . . . . .~a . . . . . . . . . . . . 05-I 1
‘C,heck and adjustment of
ignition timing . . . . . . . . . . . . . . . . . .
05-8
Coil, . . . . . . . . . . . . . . . . . .‘. . . . . . . . . 05-9
,Spark plugs . . . . . . . . . . . . . . . . . . . .
(00)
Disassembly . . . . . . . . . . . . . . . . . . .
(*)
Checks and inspections . . . . . . , . . . (*)
05-9
Reassembly . . . . . . . . . . . . . . . . . . .
BAT?ERY . . . . . . . , . . . . . . . ._. ,. . . . ,, . 05-9
(*)
Test stand’inspectiqn . . . . . . . . . . . . (*)
Service data and specifications . . , . 05-9
~STARTER . . . . , ,. . . ,. . . . . . . . . . . . ,. . ,.
Wiring diagram . . .‘. . . . . . . . . . . . .
j
Service data and specifications . . . . 05-I 1
05-I 0
Trouble diagnosis and corrections . . (*)
IWiring di,agram . . . . . . , . . . . , . . , . (-1
Disassembly . . . . . . . . ., . . . . . , . . . .
(*)
(*) ~Fefer t o “ W O R K S H O P M A N U A L (Alfa] ” VOLUMk I AND VOLUMl+II - ;Gryp 05
(4 Refer to “WORKSHOP
IRefer to: Group 00
(4
PA333500883300
M A N U A L
@j@) modek” - Group 0 5
,05-l
~
~
May 1 9 8 8
i
Technical data and inspections
1200* - 1350
305.85 - 305.86
Engine
581.293
Alfa Romeo
Type
Interna1 resistance of distributor rotor arm
Air~pP
581.363
1700
Electr. injection
1700
Electr. injection
305.58
305.58 A
581.291
548.604
Bosch
Bosch
Bosch
Bosch
Bosch
0.237.601.021
0.273.601 ,017
8.237.540.173
0.237.601.014
l-3-2-4
R
1100+10%
n
1000
mm
(in)
(A) For countries where antipollution regulations are in force.~
Not marketed in all countries.
581.292
1700
305.50
0.237.601
Firing order
Puise Generator Coi1 Resistance
1350 1500
305.87 305.88
-
;i
IGNITION, STARTING, CHARGING ~SYSTEM
DISTRIBUTOR
ADVANCE CURVES
ENGINES
1200 - 305.85
1350 - 305.86
Automatic ,advance curve
250
tis id
500
1000
1500:
~
‘2&00
‘,
2500
3000
Distibqtor r . p . m . ~’
,;,
Vacuum pressure corrector curve
100
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
MI-l
I I’I
8,
I L ! ! ! I
I l I I I’l
III
l
I
I
I
OP
I I
I
I
I I I
I
I
I I I
l
I I I I I I I I 1
I
I I
I
I
I
I I I
IPI
l
I I
l
cn
;-cv~
0
100
200
300
400
500
600
Vacuum pressure m. bar
b5-3
PA333500883300
IGNITION, STARTING, CHARGING SYSTEM
~
DISTRIBUTDR ADVANCE CURVES
~;
ENGINES
1350 - 395.87
1350 - 305.88
1
A u t o m a t i c adtiance c u r v e
1000
1500
Distibutor r.p.m.
2qop
2509,
3000
509
600
Vacuum pressure corrector curve
Y~0
.~
100
20,o
300
4 0 0
Vacuum pressure m. bar
May 1988
‘8
r
IGNITION, STARTING, CHARGING SYSiEM
DISTRIBUTOR ADVANCE CURVES
ENGINE
’ :
1700 - 305.50
Automatic advance curve
Distibutor r.p.m.
0
Vacuum :Pressure corrector curve
$00
t i i i i i i i i ,i i in-i i
I i l i i ‘i i i i ,i 34 4 i i/iÏ i i i
k 5;c ,
‘0
I I I I I I I 1 I I
100
400
200
30,o
Vacuum pressure m. bar
500
600
,
PÀ333?00883300
05-5
~
j
May 1 9 8 8
”
IGNITION, STARTING, CHARGING SiSTEq
DiSTRIBUTOR ADVANCE CURVES
ENGIilE
1700 - 305.58
P n e u m a t i c advance curve
I
a3ueApe .4o~nq!.w!p 40 saaJ6aa
May 1988
05-6
PA333500883300
r
IGNITI~N,
!N
S T A R T I N G.
CMARGING ~SYSTEM
D I S T R I B U T O R ADVANCE +M~ES
/: , ’
ENGINE
”
Ii
‘,’
1700.305.58
:,
FOR COUNTRIES WHERE ANTIPOLLUTION REGUiATION ARE IN FORCE
,’
Automatic adyance cude
Qistributor
_.
;. ‘r;p.m.:.
‘;
1
;,
_ Vacym
pressure corrqctor c,urve. ~
I
1
-100
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
,;
1
1
1
1
1
1
1
1
““““““““““Jk”“““”
100
200
300
400
~ 5OOl
600
V a c u u m pIessure m b ~’ ~
October 1988
IGNITION, STARTING, CHARGING SYdTE’h
5. Disconnect the v,acuum advance ho- ~
se from distributor; with the stroboscopie gun cgeck that at idling rpm:
CHECKING
hND ADbUSTING
BHE’lGN,lqlO~N ‘TIM’ING
8. Using the $roboscopic gub, check
also that at engine rpm of
950 + 100
_ 5. r4.m.
FARNING:
~
A very accurate check of the timing at
idle speed, has !to be performed very
carefully, Sin&e incorrect timing at idle
greatly affects exhaust emission level
which would not remain within the
s p e c i f i e d ,values.
,m 7. ‘Reconnect’ the vacuum advahce hose to the distributor.
5250 r.p.m.
the marker on rear cqver is aligned
with notch I on flywheel of the engine.
the marker of engine rear caver is alighed with notch II on engine flywheel.
9. Remount the plastic plug.on engine
rear caver.
For engines with carburetors, the procedure described in the paragraph
“Cheqk of FiXed and Maximum Advance” in the
~
manual are to be folslowed tak/ng i$o account t h e n e w
~technical yata given in the table.
For the electrroqic injection 1.7 engine
‘with catalytic convertor, the following
,procedure ‘is’to be fo!lowed:
!’
For the electronic injection 1.7 engine
~without cataiytic convertor, the following procedyre is to be followed:
..
1. Connect tbe supply terminal of stroIboscopic guh th battery and the pickm,up t o h i g h Qoltage table of cylinder
i’No. 1:
‘2. Connect an electronic rev-counter
,,to the enqin~e insertipg the terminals
‘On the coi1 pow&r supply and the pick“UP
on the high tension lead of the coil.
,;
~3. Removd the plastic plug on engine
~ r,ear caver.
~4. Start the engine, warm it up to, operating temperature.
Oil Temperature:
175,thru 80%
Engines
‘i,
~, Maximum adiance
Advance (With vacuum correcting hose disconnected)
8O f before T.D.C.
8. If specified alignment does npt,occur, proceed to adjust timing operating as followS:
(1) Unscrew the securing nut on th6 distributor.
(2) Rotate the distributor body countercklockwise to advance, or clockwise to retard the ignition setting.
(3) Retighten the distr/butor securing
1200 - 305.85
1350-305.86
at
900rpm
340 (3)
at 5500 rpm
1350-305.87
1500 - 305.88
2. Disconnect vacuum pressure hose
fr@m ignition; d i s t r i b u t o r .
, 3.~ Check wit’h stroboscopic gun that
the advance,value is 8”. If this is not
the case, rotate the distributor.
N O T E :
Connecting to,ground those plus relative to
the minimum and maximum accelerator
throttle opening switch, the ou controls the
coi1 power unit SO as to dotaln a fixed ignition advance value at 8” independently at
engine r.p.m.
1700-305.58 A
80+1’3
8"kl's
at 900 rpm
340
05-8
1700-305.58
8’ (2)
at 900 thru 1050 rpm’
3z.
-
at 5250 rpm -
at 4500 rpm
(1) The timlng values are to be measured wlth the vacuum advance hose disconnected
(2) The value is measured indipendently of the engine speed
,(A) For couniries where antipollution regulations are in force
(3) For an:addltional check, check for 30” at 4500 r.p.m.
O c t o b e r ,1988 ~
1. Disconnect the minimum and maxjmum accelerator throttle opening
switch connecter and short-circuit the
three wiring side plus.
nut.
(4) Check that timing is within specified values.
8"+1"
Fixed advsnce
T T.D.C. of cylindèr No. 1.
I Ignition advance at idle engine speed.
II Advance at 5250 rpm.
‘,
PA333500883301
‘,
,
,'
f
4GNITION, STARTING, CHARGING: SYSTEM
IGNITION COIL (BREAKERLESS IGNITION)
Electriqal data and checks
1200-305.85
1350-305.86/87
1500-305.88
ENGINE
~
Alfa’Romao Class
1700-305.50
1700-305.58~
547.811
1700-305.58
542.162
8’
B O S C
0.221 .122.323
Tvw
H
BOSCH
0.221.600.002
,”
Primary winding voltage
V
12
Primlry winding resistance
Rl (20%)
B
0.7 thru 1
PrimBry winding resistance
R2 (ZOOC)
B
6700 thru 9600
(a) Fbr !countries where antipollution regulations are in force.
SPARK PLUGS
BATTERY
l
SERiUCE DATA AND SPECIFICATIONS
As p&(Alfa]except for the data given below
I
1200-305.85
1700-305.50
Capaci!y
Discbaige current
(4) For ,countries
(1)
1350-305.86187
1700-305.58
Ah
A
50
‘j
500-306.88
1700i305.58a
1800-VM82A
- 55 (1)
,225-255(l)
where antipollution regulations are in force.
Only for ,engines mounted on 4x4 models and for models marketed in Sweden.
:,
‘1
PA3335QO883300
0519
May 1 9 8 8
1200-305.85
1500-305.88
Voltege
V
-~_
l7!0-305.58i~
1~~5OZjO~@Y87
1700-305.50
1700-305.58
1800-VM’$2A
533.051
533.052
536.611
547.199
195.27.05.030.00
BOSCH
EF 12 V - 0.8 kW
00012 11215
DUCELLIER
.6246/C
MARELLI
E95 - 0.9 kW
12v
BOSCH
EF(R) 12 V - 0.85 kW
0001208 266
BOSCH
EV-12V-2.2kW
12
-12
12
12
1
10
s 230
5 1450
5
10
s 200
z 1450
2
On load test (pinion meshed with crown
tiheel with torque dynamometer)
V
- Voltage
A
- Absorbed current
rm
- Speed
N
- Torque
(kg-m)
z
A~
Across-line test (pinion mashed with
0
locked crown wheel)
- Voltage
- Absorbed current
- Mrque
-
m
(0.5)
S 380
211~(2 1.1)
(ft.lb) (kg.mJ
Ovërrunning~torque
N-c,-
~~
( d l - n i ) (kg.cm)
~-
13 thru 22
1.3 thr; 2.2
(Z.5,
(i.5,
8
V
A
N.m
l-l-thrul7~1.1 thru 1.7
8
s 680
a 1200
19
9.8
215
1800
~~~
~~
8
400
-12
(1.9)
-
(1.2)
~~
~~
15i3
(1.5 f 0.3)
-
4
s 1300
a37
(a 3.8)
14f22
1.4 thru 2.2
EM switch on starter motor
- Max absorption current at rated
voltage
- Min pickup voltage
Pinion module
A
V
a 40
-~~8
2.1167
-
a 7.8
-
2.1167
8’
*
IGNITIObJ, STARTING, CHARGING:S;YSTEM
~
CHARG,ING
SE~RVICE DATA AND SPECIFICATIONS
ENGINE
,’
I
I
Alfa Rom00
Pan No.
1200-305.85
1350-305.86/7
1500-305.88
1700-305.50
1700-305.58~1,
1700-305.58
I
1800-VM82A
1
547.949 ~
549.399
547.565
Albrnator
BOSCH
0.120.489.480
TYPE
I
-
I
I
BOSCH
~ Kl (R)14V-23/65A
0.120.488.118/119
K1-14V-23/65A
I
Nomi’nal Voltage
V
-
14
-
Volt& range
,”
V
-
-
-
55
65
65
~Max current output
A
Output st.9rts
rm
1000 (1)
-
-
‘213 max output
rpm
1500 (1)
-
-
Max wtput
rpm
6000 (1)
-
-
-
5
~ 8,
Current
outplp
~
Bru$ woar limit
mm (in)
-
Roto; winding resistance
si?
-
Voltage ygulator resistance
‘~
D i o d e r r+stanEe
B
-
(1)
L-2
,’
,’
-
-
ValueS fead with engine at normal running temperature, at 25oC (77oF), at nominal
4kO.l
0 thru 10
voltage force.
Fo{ cobntries where antipollution regulations are in force.
FLUlD!S AND,LUBRICANTS
As per
(Alfa]
TIGHiENING TORQUES
PA333500883300
May 1 9 8 8
~
~
CONTE’NTS
~
CCOLING SYSTEM . . . . . . . . .
W&TER PUMP . . . . . . . . . . ,1,
THERMOSTAT . . . . . . . . , . . . .
~Removal and reassembly
~ ~ Checks and inspections .
RADf ATOR . . . . . . . . . . . . . . . .
COOmLANT TEMPERATURE
. . ...... (*)
. . ...... (*)
HEADERTANK PRl%SURIZED PLUG . . . . .‘. 0(*)
SERVICE DATA AND
. . ...... 0 7 - 2
. . . . . . . . 07-2
SPECIFICATIONS . . . . . . . . . . . . . ........ 0 7 - 3
Technical data . . . . . . . . . . . . . . . . . . . . (*)
. . . . . . . . 07-2
. . . . . . . . (*)
SeNSOR (FOR IGNITION CU) .
Removal and installation
Inspections and adjustments
i General specification . . . . . ,
.
.
..*a..
.
.
.
.
.
.
.
.
(*)
07-3
...... 0 7 - 2
Tightening torques . . . . . . . . . . . . . . . . 0 7 - 3
TROUBLE’ DIAGNOSIS AND
. . . . . . 07-2
CORRECTIONS . . . . . . . . . . . . . . .
a
. . . . . . . . (*)
ELECTRIC FAN CONTROL THERMAL
CCNTACT . . . . . . . . . . . . , . . . . , . . . . . . . . . . . (*)
(*)
See: “WORKSHOP MANUAL [Alfa] ” VOLUME SI- Group 07
P,4i279EO883301
October 1988
,
‘8,’
‘1
~
,‘,
ENGINE,COOLINh S Y S T E M ’ ~
1:
TI~ERM’OSTAT
~
I
CHECKS A?D
REMOVAL
&ND
It$JSTALLAT:lON
I’NSPECTIONS
1: Drain coolant of cooling system into
alsuitable container.
Using suitable tools, check that initial
thermostat opening occurs at a fluld
temperature of:
64 thru 66%
Otherwise replace thermostat.
0
21 Disconnect hose 1 from thermostat,0x
31, Unscrew screwIfixing thermostat to
engine block. ~
4’ DisGnnect tubes @ , ‘0 , @’ ,
and 5 from ithermostat, then reme
ve ‘it.
5.’ Proceed to installation by operating
@reverse orde’r of removal, then fil1 syStern wtth specified coolant.
6: &art engines for few minutes and
check that no ‘coolant leaks occur.
1 C o o l a n t d e l i v e r y hose t o r a d i a t o r
2 Tube connecting thermostat-RH.
manifold
3 Tube supplying coolant to radiant
4 Tube connecting thermostat-L.H.
manifold
5 Tube connecting thermostat to filler tube
6 Thermostat
~
)
‘,
‘,
COOLANT TEMPERATURE SENSOR;
(FOR INJECTION CU)
For electronic injection 1.7 engines only
1
REMOVAL khiD
INSTALLAPIO,N
~
Q
2
r-0
1
2
3
4
Coolant delivery hose to radiator
Thermostat
Connecter
Coolant sensor (for injection CU)
l,! Drain coolant of cooling system lnto
a suitable container.
0
2. Disconnecti sleeve 1 from thermostat~ 0 :
‘5. Proceed to installationby operating
in reserve order to removal, tightening
sensor’ to a torque of not more than:
15 N.m (1.5 kg.m)
3. Disconnect connector @ .
4. unscrew sensor
’
CD and remove it
from the R.H. ‘feed’manifold.
$Ictober
1988
6. Refill system with specified coolant.
07.2
PA3279E0883301
,,
~
‘,
r
ENGINE COOLING SYS’TEM ~
SERVICE DATA AND SPECiFICATIQNS
GENBRALDATA
Min. external
As per ;(Alfa] except for:
Avoid contact with painted parts.
I 5.1
F r e s h water
(Imp. gall.) (1.12)
3.65
4.7
(1.03) (0.80)
TIGfifENING TORQUES
Unit of measurement
Il,
Elec$ic {ah control thermal contact on radiator
i
Cqoling iemperpture transmitter on feed
~
mar(ifold
Wat+ pump securing screws
CoolBnt level sensor for injection CU (max. torque)
1
3 thru 3.5
29 thru 34
;,
33 thru 41
3.4 thru 4.2
‘19 thru 24
1.9thru 2.4
,15
I
1.5
May 1988
GEARBOX
C O N T E N T S
5 - ~PEED ~AN~AL GEARBOX . . . . . . . . . . . . . . (*)
GEARB’OX &TER LiNKAGE . . . . . . . . . . . . . . . . . .i 3-2
SERVICE DATA AND
SPEÇI<ICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-3
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-3
,,
(*,) -,r to “WORKSHOP MANUAL
General specifications . . . . . . . . . . . . . . . . . . . . . . . . . . (*)
Inspection and adjustment . . . . . . . . . . . . . . . . . . . (*)
Tightening torques ~.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (*)
TROUBLE DIAGNOSIS AND
CORRECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (*)
SPECIAL SERVICE TOOLS . . ..a................ (*)
[A-) ” VOLUME I and VOLUME II - Grpup 13.
‘8
~
~
;’
,’
PA$‘33500883300
‘,
‘,
May 7 9 8 8
‘8
,’
GEARBOX
~
‘, s 1,
~
,’
GEARBOX OUTER’ LImNKAGE
As per (Alfa) Volumes I and II except for the following procedures.
REAR; WHEEL; DRI’VE
SC LEGTOR
Reqove lever and if necessary the
silentblock @ from lever support.
If necessary remove the silentblock @ from the bar.
1
2
3
4
5
6
7
Inspectio& and checks
Check that the silentblocks situated
on linkage articulated joints are in
good condition; replace them if
necessary.,
4 x 4
v+sion
‘8
Di’sasset$bly
Place thé gearbox - differential propeller ~ shaft group on a stand
fitted with suitable support brackets,
and proceed to dismantle the rear
wh’eel drive selector in the following
~
wav.
t h e retainer split
1 Flepqve~
.
pin 01 of the stud @ connecting
the rear hheel drive selector bar @
and the corresponding rod. Remove
the stud. ~
The split~ pin must not be reused.
Lever support
Bolt
Screw
Rear wheel dritie selector bar
Rear wheel drive seléctor lever
Silentblock
Silentblock
Assembly
Go on assembling rear drive selector
following disassembly procedure in
reverse sepuence.
1 Rear wheel drive selector bar
2 S p l i t piR
3
Stud
~
4 R e a r paver’
2 . _ Urrscrew b o l t @ c o n n e c t i n g
r e a r w h e e l -1 drive selector lever @
I and lever ~Support 0,
May 19818
~
3. Loosen screw @ connecting
rear
wheel
drive
selector lever @and corresponding bar @.
13-2
PA333500883300
Models
Characteristics
Gear
Overall
ratio
1st
1st
3rd
Gearbox
ratio
Speed
at
1000 r.p.m
Speed
at
000 r.p.m
OW?dl
ratio
8,010
1:12,921
.1:3,143
ratio
1:11,629
.R.G.
Speed
at
1000 r.p.rr
Overall
ratio
Speed
9,081
1: 12,220
8,641
14,571
at
1000 r.p.m
2nd
1:1,864
1: 7,663
13,506
1:6,897
15,311
3rd
I:l,323
1: 5,439
19,029
1:4,895
21,573
1:5,144
20,529
26,446
5th
-
4th
1:1,027
1:4,222
24,514
1:3,800
27,790
1:3,993
5th
1:0,854
1:3,511
29,479
1:3,160
33,418
1:3,320
31,807
9,233
1:12,018
8,787
1: 2,091
1
1: 12,707
8,145
l
4th
OVl?dl
1: 7,247
R.G.
2nd
11135
9135
9137
9135
Speed selector
lever positions
1st
1:3,750
2hd
3rd
1:14.58
7.099
1:2,050
1 z7.97
12.986
1:1,387
1: 5.393
19.191
4th
I:l,027
1:3.993
25.920
5th
1:0,825
1:3.208
32.263
R.G.
1:3,091
1:12.018
8.612
(A) Electronic injection engine
(“)
Noi nïarketëd in all couniries with 1.2 engine
-
1:11,437
TECHNiC% DATA
Features
Crown gekr ancI pinion ratio
Speed seiector
lever position
Gearbox
ratio
9. 17
(1)
Gearbox
differefitial
>verall ratio
kpeed at
1,000 r.p.m.
Kmlh
Gearbox
differential
jverall ratic
lS'
1 : 3,143
1 : 12,921
6.010
1 : 11,629
2nd
1 : 1,864
1 : 7,663
13,506
1 : 6,897
3rd
1 11,323
1 : 5,439
19,029
1 : 4,895
41h
1 : 1,027
1 : 4,222
24,514
1 : 3,800
5th
1 : 0,854
1 : 3,551
29,479
1 : 3,160
R.G.
1 : 3,091
1 : 12,707
6,145
1 : 11,437
Speed at
r.p.m.
Km/h
Gearbox
fifferential
verall ratio
Speed at
r.p.m.
Kmlh
-
9,233
~;
c
1s'
1 : 3,750
1 : 15,416
6,850
1 : 11,932
8,850
2"d
1 : 2,050
~~1 : 8,427
12,531
1 : 6,523
16,189
3*
1 : 1,387
1 ; 5,702
18,520
1 : 4,413
23.930
4th
1 : 1,027
1 : 4,222
25,012
1 : 3,268
32,313
1 : 0,825
ï:3;391
1 : 2,625
-40,228
1 : 3,091
1 ~~12.707
1 : 9,835
10.737
R.G.
(A)
With electronic injection engfne for countries where antipollution regulations are in force.
(1)
Post modification, from chassis.
3 1 , 1 4 1
8,310
After modification
-
,APPno.
Application
Inner surface of:
- Seal ‘ring of main selector rod
- $eal iring of primary shaft
- SeaI, ring of differential shaft
- ~Seal !lip and work seat on shaft
Outer surface of:
- Seal ~rings
Outer races of differential casing and pinion
taper roller bearings
MatingI surfaces of:
-, Ring nut securing bearing to differential sha
Type
GREASE
OIL
GREASE’
OIL
13-6
Name
Q.W
ISECO Molykote, BR2
Std. No. 3671-69841
See item 5
AGIP: Fl Grease 33 FD
Std. No. 3671-69833
See item 5
PA3335000OS
W00
F R O N T SUSPENSlbJ
DESCRIPTION
. . . . . . . . . . . . . . . . . . . . . . . (*)
FRONT WHEEL HUE
FRONT SUSPENSION
. . . . . . . . . . . . . . . . (*)
. . . . . . . . . . . . . . . . (7
SERVICE DATA AND
Sf%CIFICATIONS . . . . ,.,......,........ 21-2
. . . . . . . . . . . . . . . . . . . . 21-2
~Technical data
General specificatipns . . . . . . . . . . .
I n s p e c t i o n a n d adjustment . . . . . . .
(*)
........ . . . . . .
0
Tightenin,g torques
TROUBLE DIAGNOSIS AND
CORRECTIONS . . . .‘. . . . . . . . .,.
SPECIAL SERVICE TOOLS . . . . . . . ., . . .
.
.
.
.
.
.
.
21-2
(“1
(*)
Refer to Group 00 - Chassis and Body Maintenance
for:
l
l
Checking Suspension Height
‘,
Wheel Alignment
,’
~
Q
I*) Refer to: ” WORlbHOP MANUAL (Alfa] II
VOLUME I and VOLUME II - Group 21 :
PA~335oooos woo
MARCH 1988
~
‘!
‘8
,m
‘,;
I
,,,
8’
,,
,,
F R O N T SUSPENSl’ON 8’ ~
i
1,
’ SERVICE DATA AND SPECIFfcATIOMS
TEC~NI& DATA
+IL ~SPRI$lG, SHOCK ABS&BER AND ANTI-ROLL BAR
I
Coi1
spring’
~
~ T
Wire diameter
mm (in)
Coi1 diameter
mm (in)
Free length
mm (in)
13.6 (0.53)
13.2 (0.520)
160 (6.299)
N/mm (kg/mm) (Ib/in)
t Stiffness
133018
131883 ‘$
Alfa Romeo Part No.
310 (12.205)
333 (13.11)
21.6 (2.2) (123.2)
24.5 (2.5)
SPICA
~ BOGE-
Type
3
-8
HYDRAUIX
Shock abqoiber
Piston rod diameter
mm (inl
Stroke
mm (in)
20 (0.787)
196 (7.718; (1)
187 (7.36:) (2)
-
Alfa Romeo Part No.
185 (7.283)
1’31835
Anti-roll bar
18
mm (in)
Diameter
il,) For shock a@so<ber SPICA only
J2) For shoc$ aljso[b&r BOGE only
8,
~
~
~
INSbECtlON AND ADJUSTMENT
‘QAT/i OF ,SHOCK ABSORBER SElTING
,’
260+40 (26,5&4)
,‘l
Expansion
N (kg)
1280&40
(130,5+4)
156,9*40 (1614) ~
26OzMO (25.5+5)
529,5+40 (54M)
490f50 (49,9&5)
1421,9+40 (145f4)
12751r40 (130+4)
165OCl50 (168,2+15,3)
(A) With ele$&nic injection engine for countries where antipollution regulations are in force.,
NOTE: The shock absorbers are integrated in their strut tubes.
-,
, MAY
‘,
~
1989
i
,
L
PA33350000SW01
21-2
,,
)
SI
‘,
~
I,
*
,s
i
R E A R SUSPENSl’ON ”
~
INSPE’CTION A N D A D J U S T M E N T
DAT+ OF SMOCK ABSORBER SETTING
33
‘,
~HOK A B S O R B E R
33
1.3
5
33
33
1.7
IE
33,1.7 B A
33
1.7
IE a
RH
LH
L
o
‘,
LH’
RH
581045
RH
LH
8OGE
581044
BOGE
549122
549123
581046
581047
Compression
N (kg)
150?
30 (15 * 3‘;)
157+40(16+4)
250 + 50 (25,5 + 5)
Expansion
N (kg)
330’6; (33 ’ 622;)
’ 392 + 40 (40 k 4)
4902~~’ (49 t 9+~‘{‘)
Compression
N (kg)
460 + 60 (46.9 i. 6.1)
530 k 4 0 (54 + 4)
Expansion
N (kg)
1 4 8 0 + 130 (150,9 f 13,2)
1422 + 4 0 (145 2 4)
w qpeed
,’
Hidh
1 . 7 *
BOGE
Alfa Romeo part number
)
Tl
1 . 3
Type
~
1 . 5
331.5 a x a
33
8,
490 f 50 (?9,9 f 5)
speed’
Versions
33+*
33
1 . 3
33
1.5
Alfa Romeo part number
548615
axa
331.ero
5
SPICA
SP!CA
Tvpe
1650+150 (168,2?15,3)
3 3 1 . 5 Ti
1 . 3
3 3
*
548614
548190
SPICA
549191
549300
549301
Compression
N kg)
186’40(19?4)
260 + 40 (26,5 f 4)
255 f 40 (26 i 4)
Expansion
N kg)
265 f 40 (27 + 4)
510 5 40 (52 f 4)
510 k 40 (52 f 4)
Compression
N (kg)
461 f 4 0 (47 f 4)
490 + 4 0 ( 4 9 . 9 k 4 ) ;
Expansion
N (kg)
1216 i- 4 0 (124’+ 4)
1280 f CO (130.5 f 4)
Low Ispeed
NOTE: The shock absorbers are ‘integrated in their strut tubes
~ Not marketed in all countries with 1.2 engine.
(“1
With electronic injection engine for countries where antipollution regulations are in force.
(A)
PA:33500883300
21-3
491
f 40
(50 f 4)
1275~40(130~4)
I
May 1988
CONTENTS
DESC~RIPTION . . . . . . . . . . . . . . . . . . .
(*)
Control lever . . . . . . .’ . . . . . . . . . . .
(*)
SER~V~ICE BRAKES . . . . . . . . . . . . . . . .
(*)
Control’ tables . . . . . ., . . . . . . . . . , .
(*)
Brake system bleeding . . . . . . . . . . .
(*)
SERVICE DATA AND
Pedal assembly. . . . . . . . . . . . . . . . .
(*)
SPECIFICATIONS.. . . . .‘. . . . . . :. . . .
22-2
Brake:master cylinder . . . . . . . . . . .
(*)
Technical data . . . . . . . . . . . . . . . . .
22-2
Hydraulic system piping. . .‘. . . . . . .
(*)
General specifications , . . . . . . .‘. . ‘,
(*)
Brakle:pressure proportioning valve . (*)
Inspectjpnand adjustment. . . .,. . . .
(*)
Servobrake . . . . . . . . . . . . . . . . . . . .
(*)
Tightening’torques . . I . . . . . . . , , . .
(*)
Vacuum system . . . . . . . . . . . . . . . .
(*)
TROUBLE DIAGNOSIS AND
Front disc brake . . . . . . . . . . . . . . . .
(*)
CORRECT;IONS . . . . . . . . , . . . . . . . . .
(*)
Rear drum brake . . . . . . . . . . . . . . .
(*)
SPECIAL SERVICE TOOiLS , . . . . . . . .
(*)
PARKIN’G BRAKE . . . . . . . . . . . . . . . .
(*)
(*) Refer to “WORKSHOP MANUAL
Group 22
PA333500883300
,’
and VO’LUME II -
May 1988
1,
1, S E R V I C E
DATA AND
SPECI~FCATIO’NS
TECHNICAL D A T A
FRON% B’RAKES
Caliperi, brake pads and discs
3 3 1.1 a x a
33%7IE,
3
331.ETP
3 1.3 s
3 3 1.55 7-I
A
3 3 1.7
+
3 3 1.7 + A
Features
I
Calipers
.‘.’ A.TE
Part No.
547168/9
547808/9
.DBA
Part No>
54717819
-
ATE
Part No.
Tvpe
I
~ Tvpe
‘DBA
8,
Brake
P a r t
N o .
ppds
Pad nominal thickness “‘S”
Exteimal d i a m e t a r
Discs
‘,
795356
”
-
~LIGiiT: BLUE (FRENDO)
Colours
l
720402
7 9 5 3 5 7
~
mm (in)
BLACK (FE RODO)
16,5
‘15
mm (in) .:
2
3
9
’
Nominal thickness “C”
m
m (in)--
12,+-y
~
22y
(*) Not mqrkeied ‘in all countries with 1.2 engine.
(A), With electromc injection angine for countnes whbre antipollution regulations are iti force
2272
PA333500883300
,’
,!
r
FRONT AND REAR BRAKES ~
l
SERVOBRAKE
REAR ‘BRAKES
Unit: mm (in)
~
9”
Drum nominal diameter :
130.695
Part N O.
Dri~i nominal interna! diameter
8”
228,6 + 0.2
131245
-0,l
203.2 +o,2
5
5
Eraka lining thicknass
Part N-o. 546.657
BENDITALIA
Type: BENDITALIA or ATE
7 in
Diameterof working cylinder
BRAKE PRESSU#RE PROPORTIONING
VALVE,
BR’AAKE :MASTER CYLINDER
Typz$:
~
RE;1 BENDITALIA
~
Part
“;5*“98
20:64 mm (0.812 in)
Diameter
32 mm (16 +16)
1.26 in (0.63 + 0.63j
Part No. 548.682
fype: ATE
20.64 mm (0.812 in)
Diapeter
Braka pad thickness
32 mm (17 +15)
Strbka
1.26 in (0.67 +0.59)
l
INSiiECilON A N D A D J U S T M E N T
Brake pat
FRONT
Sin@e
Unit: mm (in)
Vantilatad
BFiAKES
Dimensions for’braka disc grinding (singla or vantilatad)
Thickness:’
Sing!e
(*)
Serviceability limit is determined, anyway, by the
lighting up of brake pad waar warning lamp
vantilated
l
( 1 ) Clrcumferential
(2) ~ Radial
Braka disc thicknass
Unit: mm (in)
,,
Braka disc
Single
Ventilated
,’
l;hick+s:
rZm~in tifter machining
$iin ierviceability thicknass
;aL disc banking
10 (0.394)
21 ‘(0.827)
9 (0.354)
20.2 (0.795)
0.03(0.00118)
0.03.(0.00118)
May 1,988
1:,
F R O N T
A N D R6AR:BR,AKES’
~
Unit: mm (in)
8; REAR ~BRAKES
Drum nominal
diameter
As per r-33) except:
229.1 (9,021
204 (8.03)
229.6 (9.04)
204.5 (8.05)
Roundness error
< 0.03 (0.00118)
<O.Oâ (0.00118)
Concentricity eryor
< 0.08 (0.00315)
<O.OS (0.00315)
Emax after turning
Dimensiojsifor’brake drum turning
E max serviceability
limit dimension,
Brake shoe lining
min. thickness
(wear or serviceability limit)
HANDBRAKE LEVER
ADJUSTM ENT
BR,AKi ~PRESSURE PROPORTIONING VALVE
Adjustm$mt
‘Number of free notches
‘on; the sector gear before
wheels locking
Drum nominal diameter
-
0.5 (0.0197)
1+3
V&hi$e at nominal height :one passenger and tank filled up
- Valve piston ai end of travel
- Appl~y a load of 49 N (5 kg ;Il.02 lb)
‘8
-
Apply a load of 78.4 N (8 kg; 17.64 lb);
~
~
to the rocker hook
to th~e rqcker hook
~‘GENERA~L $PEC;IFICATIONS
FLUIDS’A’NC)
LUBRICANTS
Application
I
Denomination
Tvpe
Std No. 3681.69906
Refilling of brake Flutd system
Fluid
AGIP brake fluid DOT,?’ :
Std No. 3681-69996
IP Auto Fluid’FR DOT 4
Std No. 3681.6990’6
i
22114
d
PA333500883300
,'
CONTENTS
(*)
(*)
(*)
(*)
(*)
(*)
~Brâke pressure proportioning valve . . (*)
Servobrake . . . . . . . . . . . . . . . . . . . . . . . . (*)
Vacuum system . . . . . . . . . . . . . . . . . . . . (*)
Front disc brake . . . . . . . . . . . . . . . . . . . (*)
Rear drum brake . . . . . . . . . . . . . . . . . . . (*)
PARKING BRAKE . . . . . . . . . . . . . . . . . . . . . . (*)
~ DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE BRAKES . . . . . . . . . . . . . . . . . . . .
-Brake system bleëding . . . . . . . . . . . . .
Pedal assembly . . . . . . . . . . . . . . . . . . . .
Brake master cyiinder . . . . . . . . . . . . . .
Rydraulic system piping .‘. . . . . . . . . . .
Control lever . . . . . . . . . . . . . . . . . . . . . . . (*)
Control tables . . . . . . . . . . . . . . . . . . . . . (*)
SERVICE DATA AND
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . 22-2
Technical data . . . . . . . . . . . . . . . . . . . . . 22-2
General specifications
. . . . . . . . . . . . . . (*)
81nspection and adjustment . . . . . . . . . . 22-3
Tightening torques . . . . . . . . . . . . . . . . . (*)
TROUBLE DIAGl\iOSIS AND
CORRECTIONS . . . . . . . . . . . . . . . . . . . . . . . (*)
SPECIAL SERVI& TOCLS . . . . . . . . . . . . (*)
(*) Refer to: “WORKSHOP MANUAi [-33)”
VOLUME I and VOLUME II - GroUp 22
l
MARCH
1988
~
F R ON T
BRAKES
Calipers, brake pads and discs
Mode1
Features
Callpers
Type
~~Type
ATE
part. No.
5471 SS/9
DBA
part. No.
54717819
ATE
part. No.
795357
DBA
part. No.
795356
54780819
54717819
720402
795357
795356
Brake
LIGHT BLUE (FRENDO)
Colours
Paci nominal thickness “Y
BLACK (FERODO)
mm (in)
External diameter
mm (in)
Nominal thickness “c”
mm (in)
16,5
15
135
239
~Discs
C
54716819
12.7-O.’ (O.5-o.oo*)
(A) With electronic injection engine for countries where antipOhtiOn ragUlatiOnS are in force.
22-0,’
(0.5-0.008)
”
12.7-O.” (0.5-“.oo*)
-
SERVOBRAKE
R+ BRAKES
Unit: mm (lb)
i ;Drum nominal diameter:
TYPE: ATE ;Or ‘BENDITALIA
9” t
7 in
Diameter o[ working cylinder
Pifi
No.,
Dr$ml nqminal :internal diameter
131.245
228.8+0,2
203.2;;;
(9+7.9
,,
10=3)
5 (0.197)
~Brake litjing thickness
C
130.895
-3
!3$
:
$3)
5 (0.197)
BRAKE PRESSURE PROPORTIONING
VALVE
(7) ~+y for 4x4 versions
Bi+KE MASTER CYLINDER
Type~ ‘,
Diameter
Strole
,, ,,
‘i
i’
Ty$:
Dikmeter
Stioke
Part No. 544.498
0.38
Type: BENIJITALIA
R A T I O
BENDITALIA
Par-t. No. 548.857
20:84 mm (0.812 in)
32 mm (18+18)
1.28 in (0.83+0.83)
ATE
Part. No. 548.882
zO.84 mm (0.812 in)
32 mm (17+15)
1.28 in (0.87+0.59)
IdPECTION AND .ADJUSTMENT
FRONT ‘BRAKES
Brake pad thickness
Dih$nsions for sbrake disc ‘grinding (single or ventilated)
L
4
I .
‘Brake d i s c
Single
Unit: mm (in)
Ventilated
Thickness:
,s
~
15.15 (0.598)118.5 (0.850)
‘,
S min. #(&ear limit or min. ~
service{bilii thjcknqss) (3
7 (0.278)
7 (0.278)
(*) Serviciabi!ity Amit is in an; case determined ,by the lighting up
of brake pad Wear warningi lamp.
~
l
(1) Circumferential
(2) Radial
Unit: mm (in)
Blake disc thickness
i
Brake disc
Single
Thickness:
Cmin after machining
;eimii serviceability thickness
Max ldisc banking
i$A3335ooposwo1
,’
”
1
‘8
10 (0.394)
21 (0.827)
9 (0.354)
20.2 (.795)
0.03 (0.00118)
0.03 (0.00118)
2231’
~
MAY 1 9 8 8
1
l
DESCftIPTION . . . . , . . . . . . . . . . , . . .
FIE&R) H~UB . . . . . . . . . . . . . . . . . . . . . .
REAR SUSPENSION . . . . . . . . . . . . . . .
(“1
(*)
(*)
$EF$ICE DATA AND
SPEkiF ICATIONS. . . . . . . . . . . . . . . . .
Tfzhn’ical data . . . . . . . . . . . . . . . . .
,i
25-2
25-2
General1 specifications . . . . . . . . . . .
Inspection and adjustment , . . . . . . .
Tighten~ing tbrques . . ., . . . . . . . . . . .
T R O U BL E DIAGNOS~S ANO
CORRECTIONS,. . . . . . :,.‘. . . . . . .,. . .
SPECIAL SERVICE TOOLS . . . . . . . . .
(*)
25-2
(“1
(*)
1”)
“‘VOLUME l,and VOLUME II (“1 Refer to “WORKSHOP MANUAL m
\
I
Group 25
PA332j500883300
,,
~ hiay 1
9
8
8
REAR SUSPENSION
~
‘-..
~SE#RVICE DATA AND’ SPECIFICATION
~
TECHf4ICAL D A T A
COIL SifRING AND SHOCK ABSORBER
Versions
33+ *
3 3 1.7 *
33 1 . 3
3 3 q.3 s
33 1.5 TI
3 3 1.7 + A
331.s-rcl
3 3 1.5 a x a
’
33 1.7 IE
33 1.7 IE, A
Festures
,:
Alfa Romeo Part No.
130938
131805
11,5?0,1
11,2&0,05
131990
‘,
, Coi1 Springs
Wire diameter
mm
Coi1 diamete’r
mm
Free length
mm
~
11,8*0,1
111
.310’
302
313
21,3 (217)
23,l (2.35)
,i;
N/mm (kg/mm)
Stiffness
l
e
nStaticg load t
h
~23,4 (2.39)
mm
204
l
Boge
Tvpe
Shock absprbers
81
~
Hydraulic
Piston rod diameter
mm
S t r o k e
mm
12(l),
186 (l),
‘8
I
1,
:i
1
4
11 (2)
4
(
2
)
1
8
0 (1)’
132 (2)
i
INSPECTION AND ADJUSTMENT
DATA OF SHOCK ABSORBER SETTING
Versions
33e* ~
33 1.3
3311.7 *
33ll.7 IE
33 1 . 3 s
A 33 1.7 a
3 3 1 . 5 TI
A 33; 1.7 IE
3 3
3 3 1.5 a x a
ya-r0
Shock absorber type
BOGE
SPICA
BOGE
SPICA
Alfa Romeo Part Number
581.052
549.141
549.134
549.142
~
~
Compression
N (kg: lb)
100’40 (10,2?4)
220 f 40 (22.4 f 4)
117240~(12+4)
180 k 40 (1#8,4 + 4)
Extension
N (kg; lb)
90 k 40 (9.2 f 4)
200 f 40 (20,4 f 4)
157+401(16t4)
200 k 40 (20,4 -t 4)
Compression
N (kg; lb)
400 f 50 (40.7 i: 5)
520+40~(53+4)
451 f 501(46 f 5)
520 f 40 (53 f 4)
Low, speed
High speed
Extension
-
N ( k g ; lb)
730175 (74,4+7,6) 1160*40 (~118,3+4) 2 1 1 +78 (21,5+8)
116Oi40 (118,3*4)
VOTE:; VaLues to be measured with shock absorbers at 20 *29: (68 f 3.6”F) temperature.
Net marketed in all countries with 1.2 engine.
(“)
With electronic injection engine for countries where antipollution regulations are in force.
(4
25-2
~ ”
,,
PA333500883300
CONTENTS
,DE$~Rl~PTI6N . . . . . . . . . . . . . . . . . . . . . . . .(*)
‘8
,REAR H U B ‘........................... (*)
RE@ SUSPENSION
~
Generabspecifications
. . . . . . . . . . . . . . (*)
Inspection and adjustment . . . . . . . . . . 2 5 - 3
. . . . . . . . . . . . . . . . . . (*)
SERVIC:E DATA AND
SP~($lFICATIONS . . . . . . . . . . . . . . . . . . . . . 25-2
~
?&hnical: data
TROUBLE DIAGNOSIS AND
CORRECTIONS . . . . . . . . . . . . . . . . . . .
SPECIAL SERVICE TOOLS
. . . . . . . .
1J
, . . (*)
.
. . . (*)
Refer to Group,OO - Chassis and Body, Maintenance
for:
l
Che,cking Rear Suspension yeight~ ~
~
(*) Refer to: Lr WORK$HOP, MANUAL [-33) ”
VOLUME I and VOLUME II - ‘Groui, 25 ~
MAY 1988
’
~
;,~SERVICE DATA ANDY SPECIFICATIONS
,l,
1
~‘TECH$CAL DATA
j COIL %=RING, f%lOCK ABSORBER AND ANTI-ROLL BAR
Coil’Sprine
Coi1 diameter
mm (in)
Free length
mm (in)
111 ,(4.37)
I
~.
~
B
Type
Shock abiodber,
O
G
S&ICA
E
I!
HYDRAULIC
I
11’ (2) (0.433)
12 (1) (0.472)
Piston rod diameter mm (in)
~
~
180 (1) (7.086)
Stroke
,-- _,
23,s !(2,?) ( 1 3 4 . 4 )
StiffnessNlmm (kglmm) (loin)
l
323 (12.72)
302 (11.89)
313 (12.32)
mm (in)
144 (a), (5.67)
(1) For SPIEA shock absorbers only
(2) For S?G~E dock a b s o r b e r s only
25-2
,,
‘8
12 (1) (0.472)
180 (1) (7.086)
Iil%~ti~kï?ikib ADJUSTMENT
DATA OF SHOCK ABSORBER SElTlNG
n
+
3s 4.7 k3
BOGE
SPICA
BOGE
549137
5491230
549142
549134
581052
(kg)
216+40 (22+4)
11716 f40 (12 54)
180540 (18,4&4)
117,8+40 (12+4)
1 OOf (10,2f4)
220+46 (22,4+4)
N (kg)
196f40 (20f4)
117,6+40 (1254)
200f40 (20,4&4)
157f40 (16+4)
90f40 (9,2&4)
2OOz!z40 (20,4+4)
Compression
N W
520+40 (53+4)
461 M9 (47t5)
52Or140 (53-14)
451+50 (46+5)~
400f50 (40,7&5)
Extension
N (kg)
760+40 (77.5+4)
853zt83 (87&8,5)
1160f40 (118,3-140)
799f78 (81,528)
TYPE
Alfa Romeo part No.
Compression
N
Low speed
Extension
.
520+40
(53f4)
High speed
73OC75 (74,4t7,6)
C
NOTE: The shock absorbers are Integrated In the strut-tubes.
1180f40 (118,3&4)
C O N T E N T S
,m
,’
~CHkCKIN’G TIRE CONDITIONS . :. . .
‘TIR~E~ REPLACEMENT . . . . , . . . . . . . ,
CHECKI~NG’WHEELCONDITIONS ,
‘SEti\iIqE ‘DATA AND
‘SPklFIICATIONS.. . . . , . . . . , . , . . ,
,’
(“)
(*)
.
. (*)
Genera~l specifications . . . . . . . .‘. . .
‘Inspec$ion and adjustment . . . . . . . .
Tightening torques . ; . . . . . . . . . . .
Technkal data . . . . . ~. . . . . . . . . . . .
(*)
(“)
(“)
282
. 282
,‘:
‘,
~
(“1 Refer ta ‘WORKSHOP MANUAL
Group 28
c-33)
” V O L U M E I a n d V6lhME I I -
,l,
,,’
PA$‘3+5?0883300
!i
28-I
May 1 9 8 8
”
SERVICE DATA Ai’iD
8’ TsEC~llNICAL D A T A
n
-
a
P
a
P
a
P
7
a
0.
a
a
a
-
‘m
x
-7
c
u-l
PA333500883300
*
~
WHEELS: AND TXRES, ‘8
1’
i
CONTENTS
CHECKjNG TIRE CONDiTIONS
. . . . . . . . (*)
TIF& REPLACEMENT . . . . . . . . . . . . . . . . . (*)
8’
General specificaticns . . . . . . . . . . . . . .
Inspection and adjustment . . . . . . . . . .
Tightening torques . . . . . . . . . . . . . . . . .
Technical data . . . . . . . . . . . . . . . . . . . . .
(*)
(*)
(*)
28-2
CHECKING WHEEL CONDITIONS . . . . . . (*)
1;
I.. #
,’
; SEi3kE DATA AND
SPECIPICATIONS . . . . . . . . . . . . . . . . . . . . . 28-2
(*) Refer to: “WORKSHOP MANUAL’[m]”
VOLUME I and VOLUME II - Gioup 28
PA3335OQOOS W O O
MARCH 1988
TYRES
of
RIM
measurement
165/70 RI 376s
165170 RI 379T
5 1/2 J x 13”
175i70 R_l3 82T
5 1/2 J x 13”
185/60 R14 82H
5 1/2 J x 14”
A
P
1.8
1.8
A
ç
%
-
-
Balance (max. allowed residual balance)
9
2!I
Balance weights
Cl
10 i 40 (at 10 g-intervals)
63
_
Snow chains
Chain “S” max. dimensions
(for tyres 165/70 R13)
Kg/cm2
-
-
,-------_\
2.0
1.8
1.8
-
2.0
8
.~~
mm
16
[(A) With eiectronic injection engine for countries where antipollution regulations are in-force.
S rating F~Up~to 180 Km/h (112 m.p.h.)
T rating = Up ton 196 Kmlh (y 18 m.p.h.)
H rating = Up to 210 Km/h (130 m.p.h.)
.
2
0
2
8
z
s
[l) Inflatjng pressure measured with cold tyres,
In particularly heavy operating conditions (max. load, high temperatures, high speeds, etc...) it is advisable to increase inflating pressures by 0.2 kg/cm’ (0.2 bar; 20 kPa; 2.84
p.s.i.).
In the event of rear axle overloading (trailer hauling. (L.P.G. tank, etc...),it is advisable to increase rear tyre inflating pressure by 0.6 kglcm’ (0.6 bar; 60 kPa; 8.53 p.s.i.).
Unit of measurement conversion:
2.2 kg/cm’ = 2.16 bar = 216 kPa-= 31.30 p.s.i.
1.8 kg/cm2 = 1.76 bar = 176 kPa = 25.6 p.s.i.
1.6 kg/cm2 = 1.57 bar = 157 kPa = 22.76 p.s.i.
,’
~
r
ELECTRICAL SYSTEM ‘~ ~‘, ‘,’ ~
‘,
~
All information contained in this group is applicable fo
1.7 electronic injection engiries with cata!ytic convertdr only
‘;
‘8
CONyiENTS
~
‘HOWVTO’READ THE WIRING DIAGRAM
(*)
Cl&ter . . . . . . . . . . . . . . ...’ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-9
FUEL~ DI~STRI~BUTION . . . . . . . . . . . . . . . .
40-2
Carburettor power supply and rpm puiser
(wiring diagram) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-I 2
‘Fiel lwiring diagram . . . . . . . . . . . . .
40-2
.........................
40-3
~FUses
“Idnition switch
.................
~ELKfR’OMECHANICAL AND
ELECTR~ONIC DEVICES, . . . . . . . . . . . . . .
(O)
40-5
Relays, ‘timer, and electronic devices and
interm’ittences ...................................... 40-5
~
Ll@H~;rl$lG SYSTEM ................................. 40-8
y?ylp? ,,, . . . . . . . . . . . . . . . . . . . . . .
,&bjnation switch assembly ‘. . . . .
~
~OCt$de ~{ront lighting
;($ri:ng diagram) . . . . . . . . . . . . . . . .
Engine, cooling, lubrication, brake, pad
wear sensor, minimum level, brake
clutcher (wiring diagram) . . . . . . . . . . . . . . . . . . . . . 40-I 3
WINDSCREEN WASH/WIPER
HEADLIGHT WASHIWIPER AND
REARS WINDOW WASH/WIPER . . . . . . . . . . . . . . . 40-14
Witidscreen wash/wiper, headlight
wash/wiper and rear window
8’
,Windscreen wiper~ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (*)
(*)
He~adlight w a s h e rl................................. C*l
Wihdscreen ‘washer . . . . . . . . . . . . .
(“)
,Rear combination lamps (wiring
‘d/agram) .............................................. 40-8
Front optical groups ............................. (*)
40-I 5
Rear wtndow washlwiper . . . . . . . . . . . . . . . . . . . . . (*)
~
,.Rear w i n d o w w i p e r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (7
;,
Rear window washer electric pump . . . . . (*)
EL+TRIC ~ACCESSCRIES . . . . . . . . . . . . . . . . . . ..a. (0)
Rear ~optical groups ............................. (“1
‘8 KEY h0 WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . 40-17
Fcg/ights and rear foglights
‘(wir~ing diagram) . . . . . . . . ‘. . . . . . . .
40-14
wash/wiper (wirin,g diagram) . . . . .
(“1
‘,
(O)
”
,,
8,
Ihside lightening (wiring diagram) . (O)
BO?+ INSTRUMENTS AND SENSORS
AND~TRANSMITTERS . . . . . . . . . . . . . . .
:,
~ i’
40-9
~
‘1
‘1,
(*)’ FIefer to “WORI<SHOP
MANUAL (Alfa) ” VOLUME I ‘AND VOLUME’11 -~Group ‘40
,l,
(0)’ qefer to “WORKSHOP M A N U A L @$$@j Models” - ‘Group
40
‘1 ~ ~
‘1,
‘1
‘i’
,N
‘,m
!’
~
,’
;,
,’
,i
,. ~’
~P A Q335008l73300
May 1 9 8 8
~
l
E L E C T R I C A L
8,
S Y S T E M ~
i
‘,
POWER SUPPL.Y ‘R0~UTI.W
~
8,’
For 1.7 electronic injection engine. with catalytic donvertor bnly
POWiR DISTRIBUTION WIRI’NG DIAGRAM
May
1988
(wiring d i a g r a m )
PA333500883300
LOCA~TION
CAUTION:
The fusebox is an integral part of the
a.
terminal board support and is located
on left ~side, of the intermediate bulkheadl in the engine compartment.
Furthler,mdre t h e r e a r e t w o f u s e s
relating to Injection wiring in rightfront
SERVICES PROTECTED
IhY FUSES
Should a fuse blow, before replbcing it, make sure that the cause of
failure has been removed.
b. Use fuses with the specified
‘.
amperage only. Never use fuses
with an amperage greater than
that specified.
area ;of eng’ine compartment close to
relative lighting unit.
c . Correctly insert f u s e i n t o f’usebox; ~
i
aligning it carefully in its séati’ng:
d.
Should dar rbmain statiOnaI’y \Or
a long tirne, remove fuse protecting supply circuit of clock.
In the~following table, for each model, it is specified which are the services proteoted by eqch ‘fuse.
Models
i,
~
Fuse~
Ampere ~
:l
Protected Service
,”
” I
1 ~ 1
~
“‘“”
Front power Windows
Heedlight washer timer - Headlight washer
electric pump (“1
16
X
--‘36
X
I
Door lock control unit
2’
Front fog Irghts
,l
1
Heated rear window
31
C a r
4i
‘,
r a d i o
6
X
16
Cigar lighter - Horns
X
I
Passenger compartment roof lamp-Intermittence
of direction and hazard lights - Stop switch
8,
~6
~~Windscreen wiper - Windscreen wiper electronic
intermittence generator - Windscreen wiper
control - Windscreen washer pump control ~
Cluster
8
X
8
Windscreen washer electric pump
~
~
Haated raar window switch’ Heater switch - Rear window relay
Power window relay - electronic injection relay - clock
~
8
Rear window washlwiper
(‘1 Only fer ‘Sweden version
;’
May 1988
Models
Protected Service
Ampere
33
Reverse switch - H,azard light switch lighting
8
ALFA ROMEO Control
~’ Sida light left front and right rear - RH.
~~~number plate light
Drawer light
(
1.7
IE
3 3 1.7 +
Injection
X
X
-
-
X
X
x
X
8
ALFA ROMEO Control (Side light left front
x
and’ right rear - RH. number plate light)
Cigar lighter
X
X
X
X
Side light: right front and left rear - L.H.
I number plate light
ALFA ROMEO Control (Side light! right
~
, front and left rear - L.H. number plate light)
X
8
Heater control lighting lamp - Cluster
lighting lamp
X
X
Front fog light relay - front fog light switch lighting
X
X
Right low beam
8
X
~Left fow beam - Rear fog light, switch
~
8
X
~Right full beam
8
8’
Left full beam - Full beams warning lamp
8
Lsmbda sensor resistance
7.5
X
Fuel pump
1.5
X
(*)’ Otily for Sweden version.
”
(“) These; fuses are focated on right front area of engine room close to optical groups.
40-4
Y
PA333500883300
r
,.
ELECTRICAL
S Y S T E M ~~
ELECTROMEC~HANICAL AN~D ELECTRO’NIC DEVICES
Only for 1.7 electronic injection engine with catalytic convertor
RECAYS, ~ELECTRONIC AND INTERMITTENCE DEVICES
~LOC&T(,ON
.,
To &ate komponents, see following figures and the two tables “remote control switches and electronic devices
and intermittences”.
1
1 F’useholder’box
2 i3eam excluding remote control switch
3’ Horn; remote control swltcb
4’ Thermal winqlow remote control switch
il
~
‘,
~
5
6
7
9
Lamp washing remote control switch
Front wihdow llifting remote controli$witch
Foglamps remote control switch
Electronic window iritermittence
9 Lamps and beam switching device
10 Main injection remote control switch
11 Fuel pump remote control switch
1,
;,
~
~‘,
,l
CHFCK
Al/ com&onents
PA333~00883300
81
,’
must be of the type stated on the specification table
40-s
~
~
1’
May 1 9 8 8
Position
(See fig.
pag. 40-5)
Symbols
External view
43
30
86 87 85
8
2
7
3
,Horns! relay
~
l
il
Heated \eer window
relay ~
3
1
0
4
86 87 85
2
‘,
5
30
6
86 87 85
~ %b
87
‘:
Front f*glamp
relay
,,
1
117
8,
l
i.,
May ‘19b8
~
7
PA333500883300
40-6
‘1
,,
“R@&s and Timer” (Ta’ble corhnued)
Main &je?ion arelay
-Position
i :(Sec f i g .
, ,pag. 40-5)
!Symb&
,External ;view
Component
S12b
i
-10
,
S12a
‘Yntetyi~tences :and ,electronic devices” Table
”
Bymbols
;External r i e w
:Com.ponent
”
.Position
,(See fig.
;pag. 40~5)
8:
~
‘1
1
,l
~
1,
,”
..i
Windscree~‘.wiper .electronic
,inter,mittence
;N14
Electronic ,device for ~headlights
,and Nflashing changeover
,<N18
i
,:
~
!Mazard;,and’.dire.ction
‘ligh? .iqtertiittance
1’
!
)
;Nd3
~
,(*j) lLoc+ed,,in compartment, under .the dashboard, at the sright:of steering!XYkrmn, .aS:per i[m] .~
i,
2
1
,:’
~
.
E L E C T R I C A L
LIGHTING
S Y S T E M ~~
SYkTEM,
For 1.7 electronic injection engines with catalytic convertor; only
EXTERNAL REAR LIGHTIiNG
i,’
May 1988;
‘,
(wiring d i a g r a m )
PA333500tj83300
i,
i
r
i’
ELECTRICAL S Y S T E M ~
!’
PAN~E’L~
I N S T R U M E N T S,
SENSORS~
AND
TENDERS
For 1.7 electronic injection engine. with catalytic convertor only
CL+TE,R
Front ;view
Rear view
8
9
Tachometer - odometer
Fuel level gauge
Fuel reserve warning lamp
Max coolant temperature warning lamp
Coolant temperature gauge
Rev. counter
Hand brake warning lamp
PA3~3+0,0883~00
Brake fluid insufficient level warning lamp
Headlight warning lamp
10 Direction light warning lamp
11
Alternator charge warning lamp
12 Lights warning lamp
13 Insufficient oil pressure Warning lamp
14 Trip’odometer reset knob
”
40-9
‘May 1 9 8 8
Cl
C2
c4
C6
Dl
D2
D3,
D4
D5
Electronic rev. counter
Electronic tachometer
Fuel. Ievef gauge.
Coolant temperature- gauge
Alternator- charge: warning: lamp
Direction, light warning. lamp.
Side light warning: lamp
Full- beam warning: lamp
Brake fluid level warning lamp:
D7 Hand brake warning lamp
DE Fuel reserve warning lamp
D1~1 Engine oil min.; pressure warning lamp
D13, Engine coolanti max. temperature warning
l a m p
F12 Cluster lighting, lamg
G5, Connecter ,N
G3 Cluster B. connecter
67 Cluster R connecter
~
,’
kIN-$lT~ LOCATION
For,lo$a\ion of pin-ou& of connectors 1, 2 and 3, refer to the followifx$ figures and tables.
~
Cluster rear view
Jaegqr type
Borletti type
8:
Connecter 1 : white
Conpector 1 : white
Service,
Pin’
Connecter
-
Ser\iice
Pin
InterTediaté wiring oohneotor
for tachimetric pulse generator
Connecter for tachimetric p+e generator
EngiRe
Wirihg
conheirtsr
Availabie
Engihe wiring Mnnector
Engine wirihg cbnnector
SN
Cork
6
t& 3 : white
C
N
7
8
Engine Wiring connectdr
Min. brake fluid level sensor eRd
ALFA~ ROMEO Control wàrhirq lamp
Service
Available
Combination switch unit, windscreen
washlwipe pump
HN
Power window wiring’ conheotol
Engine wiring connecter
B
Ihtermecliate wiring connecter
Available
N
REtiOVE, AND ~INSTAL~ATION
Direction indicator intermittence
A s p e r models w .
Fuseholder box to fuse 14 (full beam
warning lamp)
A
N
Direction indicator intermittence
REMOVE~ AND ~INSTALtiATION
tkJIIIinatiOh of heater fan swltch
As per modek v .
PA33350q8fI3300
~
ii,
40$1-l
iday 1988
(wiring diagram)
1’1~ FUEL ~s;UPPLY AND REV. COUNTER PULSE ~GENERATOR
,s
;i
r _ - - - - - - -y -
‘1,
-1
I
f- m
S’LSS
i
May 1988
‘,’
,’
:
0u
1’ ~
1, ,
1
I IL--i .--. <
SCSE’OS
-L1
1
lilsn
ION
0Fi
l
Fr.4
ce
8
PA333500883300
l
ELECTRIh
SYSTEM ‘:’
,;’
‘8
EN&N,E SPOOLING, LUBRICATI.ON; BRAKE P A D WEA~R s’~NS~R,,~ BRAKE-CLUTCH
(wiring diagranî)
FLljlti MIN. LEVEL SENSOR
For 1.7 eledronic injection enghe with #catal,ytic convertor bonIy
PA33350(%?83300
May 1988
7
-
-
-
-
-
1’
~
-
Mày 1988
PA333500883300
ELECTRIFAL SYSTEM
WINPSCREEN WASHER
1
2
3
4
5
6
7
8
9
10
11
12
13
PA333tjOO883300
Tank
Liquid level sensor
Windscreen washer pump
G a s k e t
Pump wiring
Delivery tube fo sprayers
Plug
Pump covering
Flller
i&t
Gaskel
Lower fixing screw
Upper fixing screw
Grave1 guard pf right front wheel
May 1 9 8 8
P
‘8,
1 ‘REMOVAL AND INSTALLATION
‘i
indicator ~
~3 . OpeLating,;from, e n g i n e compart,’ ment, rerhqve press~fit filler inletfitting
‘~
~,
;, 4. Unscr;ew~Uppe,r fixing screw 0.
#i, 5. !Opei.a$ng froml under wheel arch,
,, unscrew~ +rew 0 a n d l o w e r t a n k
0.
~:
,6. Discomnect level sensor @ wir;~ ing )and ki~ring ‘@ from pump ‘0.
,;“7. Disc@nekt tube cc> f r o m p u m p ,
8, remove ta& and drain liquid.
1 ‘ 8 . I f ndcessery, r e m o v e pump @
completd $th gasket @ a n d sensor
@ with qssociated gasket from tank
a,
‘,
9. ‘For ta& installation, reverse order
of removal!
May
1988
M
P
REMOVAL AND INSTALLATION
1. Remove tank.
:With referqnce to the figure, operate
a s follows:~
1. Rembye front right wheel and its
relevant grave1 Iguard 0.
2. ,‘Disc?nnect right side d i r e c t i o n
‘~‘l@.
U
2. With reference to figure, remove
covering @ and pump @ press
fitted into its relative gasket @
3. For pump installation, reverse or&er of removal.
WINDSCREEN! WASHER
LIQUID LEVEL SENSOR
REMOVAL AND INSTALLATION
As per figure, operate as follows:
1. Disconnect tank @ and lower it,
as stated at “tank” pp toi step 0. ‘~
2. Disconnect sensor @ wiring and ‘,
remove it from tank.
3. Proceed to installation, operating
in reverse order to re’moval.
40-l 6
1. Connect the two ends of tester to
sensor connecter by operating as per
f\gure.
2. Check sensor proper functioning
by verifying the following.
Float liftes: 00
FLoat lowered: 0 D
PA333500883300
E L E C T R I C A L SYSTEM~’ ~~
A :
STARTING - CHARGING
A l
A2
A3’
A4~
A5:
A59
A5b
A6’
A 7
A8’
Asa
A8b
A9’
A10
Al 1
Al2
Al3
Al4
Bàttery
Alternator
Alternator with integral electronic voltage regulator
Voltage regulator
Ignition distributor
Ighition distributor A
Ign’ition distributor B
Pu’lse generator
Rotor
Ignition coil
Ignition coil A
‘Ignition coil B
Coi1 resistor
2-way connecter for coi1
Starter motor
Spark plugs
Pre-heating glow plugs
Alternator table terminal board
B:
MANUAL ELECTRIC CONTROLS
Ignition switch
Windscreen wiper control switch
Wfndshield washer and/or headlamp wash/wiper p u m p
control switch
.B4
Control switch for side lights. flashing, lowlfull beam
headlamps
B5 ~ Horncontrol switch
~ B6~
Direction indicator control switch
Low beammflashing control switcfl
87
88’
Fjll’beam flashing control switch’
89 ~ Heated rear window control switch
Foglamp control switch
BIO
Bli
Raar fog lamp control switch
Road hazard lights control switch
812
813
Passenger compartment front roof lamp control switch
814
Passenger compartment rear roof lamp control switch
815
Passenger compartment roof lamp control switch
Blé
Cluster lighting dimmer rheostat
Bli
Gearbox oil level warning lamp switch
SI8
Door,lock control switch on front right door
SI9
Door lock control switch on front left door
Interior door locking,switch
BT?
821
Front right power window control switch
822
Fr,ont left power window control switch
823
Rear right powar windbw control switch
824
Rear left power window control switch
825
Rear power window inhibitor switch
826 ~Rear power window and rear cigar lighter inhibitor swifch
827 ~ Fr,ont seat height control switch
828
Front left backrest control switch
829 ~ Front right backrest control switch
B3o Door mirror control switch
B31 Antenna control switch
832 ~W/ndshield washer pump control
833
Fr#ont spot light switch
834 Rear left spot light switch
835 ~Rear right spot light switch
839 Door mirror double control switch
637 , Parking light control switch
638 Rear window wiper control switch
839 Trip odometer recall microswitch
840
Tr:ip odometer reset microswitch
841
VF electronic rheostat
B’
82
83
PAb;35&?883300
842
843
844
845
846
047
848
849
850
851
Lamp dimmer rheostat
Interna1 control switch for door unlock
Rear spot light control switch
Identification light control switch
Two note,horns - normal lhorns control switch
Sun roof motor control switch
Intercom system control switch
Speakllisten changeover switch
Sirencontrol. switch
Driver:s seat heater control switch
c:
INSTRUMENTS
Cl
c2
c3
c4
c5
C6
c7
C8
c9
CIO
Cl 1
Cl2
Cl3
Cl4
(“)
Electronic rev counter
Electronic sp,eedometer
Voltmeter
Fuel level gauge
Oil pressure gauge
Coolant temperature gauge
Clock
Space free for instrument
Turbocharger air pressure gauge
Cluster (“1
ALFA RO,MEO Control display
Performance’gauge display
Optoelectronic cluster
Warning lamp pane1
CIO AIBICIDIEIF Cluster connectors
D:
WAR~NING LAMPS
Dl
D2
D3
D4
D5
D6
D7
D8
D9
Dl0
Dl 1
Dl2
Dl3
Dl4
Dl5
Dl6
Dl7
Dl8
Dl9
D20
D21
D22
D23
D24
D25
D2fS
D27
D28
D29
Alternator charge warning lamp
Direction, indicator warnilng lamp
Side light warning lamp
Full beam warning lamp
Brake fluicl Ibw level warning lamp
Heaterlventilation warning lamp
Handbrake warning lamp
Fuel reserve warning lamp
Choke warning lamp
Handbrake ON - brake fluid level warning lamp
Engine oil minimum pressure warning lamp
Pre-heating glow plug waining lamp
Engine coolant high temperature warning lamp
Maximum air pressure warning lamp
Minimum’fuel pressure warning lamp
Free warning lamp
Gear ‘position warning lamp
Manual injection advance, warning lamp
Brake ,pad wear warning lamp
Rear drive engagement warning lamp
ALFA ROMEO Control warning lamp
Heated rear yindow warning lamp
Hazard light warning lamp
Rear fog light warning lanp
Fog light warning lamp
Injection diagnosis warning lamp
A.B.S. system warning lamp
Ident,i/ication light warning lamp
Ignitidn diaghosis warning lamp (antiknocking)
E:
EXTERNAL LIGHTS
E l
Front direction indicator
'40-17
~
~
May 1988
”
E:~
88
EX’TERNAL LIGHTS fcontinued)
:
Front side light
Front direction indicator and side ligh’t
Frdnt side marker light
;:
Loy beam light
E5
Low bea,m light with incorporated side light
E
6
Ful~l beam light
,’
E7
$0~ and full’beam light
:
E8
Side repaater
”
E9
E l 0 ,Fog light
Rear d’irection indicator
~', Eil
El2 Rear side marker light
El3 ‘Rear parking light
E
l
4 ‘Re~ars~in~g’light
8” E l 5 Sto,p liglit
,’
El6 Rear fbg lamp
E l 7 Numberplate l i g h t
El8
Stop and rear side light
El 9
Rear right light
E20 Rear left ligh,t
Inspection light
~ E21
,#”
E 2 2 Ide(ntif,ication l i g h t
‘1
1’
~;
1,”
,,
I’NTERIOR
LIGHTS
‘1
F:
l,
,,
!
1
E
E2
3
E4
FI
F2
F
3
F
4
F5
F
6
,;
F!
1,:,
~,
F?
F9
‘Fi;
Passenger compartment front roof lamp
Passenger compartment rear roof lamp
Pas~senger compartment roof lamp
5ngine compartment lamp
Luggage compartment lamp
Dobr op,en si,gnalling light
Fuse li:ght
Heaterlventilation control lighting lamp
Glovebo,x light
“b’;;;hl’““’
,
,l
~
FI2 Cldster l i g h t
Fi 3 Front spot light
FI4 Reér right spot light
ml FI5 Rear lefi s p o t l i g h t
FI6 Ign~ition s w i t c h l i g h t
F17 Swhch illumination light
FI8 Rear spot light
FI9 Passenger compartment roof lamp - right side
F20
Passenger compartment roof lamp - left side
F21 Reading’spot light with switch - right side
F22 ~Reading light with switch - left side
F23 Floor !ighting lamp on right interna1 valance pane1
F24
Floor lightin’g lamp on left interna1 vafance pane1
,
F25 Vanity’mirror roof lighting on sun visor
”
”
F26
Gearbox lever pane1 lighting lamp’
G;
I
FUSEBOX - CONNECTORS - GROUNDS
GJ
:
G2
G3
G4
GS
G6
G
7
G8
G9
G,l 0
Gil 1
Fusebox
Atrlxiliar,y fusebox
Fusebbx terminal
Frke fhsebox
Miltiple connecter
Multiple connecter 6 - cluster
Miltiple connecter R - cluster
Singleiconnector
Coinnector between, front left door wiring and door mirror
swbl
Co~nnector between front right door wiring and door mirror
Switch
Colnnector between board wiring and rear wiring
GI2 Connectai b e t w e e n b o a r d w i r i n g a n d courtesy m i r r o r
shitch:
I
”
,
GI3
Connecter between board wiring and console wiring
GI4 3-way connecter ~ between board wiring and door wiring
GI5 2,,way connector’between board wiring and door wiring
G16 6-way connecter between board wiring and door wiring
GI7 Connecter b e t w e e n b o a r d w i r i n g a n d f r o n t r i g h t door
wiring
G18 Connecter between board wiring and front left door wiring
GI9 Connecter between board wiring and pessenger compartment roof lamp
G20 Connecter for front right door - locking motor
G21
Connecter for front right door wiring
~
Connecter for front left door - locking motor
G22
G23 Connecter for front left door wiring
G24 Connecter for rear right door T locking motor
G25 Connectorl for rear right door hiring
G26 Connecter forrear left door - locking motor
G27 Connecter for reai left door wiring
G 2 8 Connecter, between front right door w i r i n g a n d p o w e r
window switch
G28a Connecter between rear right door w i r i n g a n d p o w e r
window switch:
G 2 9 Connectai b e t w e e n ’ door Iock w i r i n g a n d r e a r p o w e r
Windows
~
~
G30 Connecter for,power Windows and door lock
G31 Connecter, b e t w e e n f r o n t l e f t door w i r i n g mand p o w e r
window yitch
G31a Connecter between rear left door wiring and power window
switch
G 3 2 Connecter between console wiring and rear right door
wiring
G33 Connecton between console wiring and rear left door wiring
Connecter, for power window supply table
G34
G35 Connecter’ betweien rear wi(ing and rear right tail light
wiring,
~i
G36 Connectoq forspower window switch tables
G 3 7 Connectai for’ combmation switch on steering column
G 3 8 Connectai forlair conditioner wiring
G39 Connecta; for clock
G40 Connecter for door lock control unit
Connecter f o r t a c h y m e t r i c ‘switch _ r e v counter puise
G41
generator
G42 Connecter between alternator and min engine oil pressure
switch
G43 Connecter for heater/ventilation control tables
G44 Connecter for rear fog lamp
G45 Connecter for headlight washlwipe tables
G46 Connecter for headlights
G 4 7 Connecter for right side - repe~ater tables
G48 Connecter between electric ldoor, mirror and left side .
repeater tables
G49 Connecta( aveilable
Provision for loud speaker tables
G50
Provision for car radio tables
G 5 1
G52 Fusebox ground
G53 Engine compartment ground
G53a Engine compartment ground - right side
G53b Engine compartment ground - left side
G54 Passenger compartment ground
G54a Passenger’compartment ground - right side
G54b Passenger compartment ground - left side
G55 Valance pane1 #ground
G56 Branch terminal board
G57 Provision for fuel tut-off solenoid valve
G58 Connecter for ciger lighter
G 5 9 Connecter for,electric door miirror
G60 Injection biring ground
G 6 1 Connecter for’ign~ition coil
G62 Clutch switch connecter
:
,;‘,
G:
~FUSEBOX - C O N N E C T O R S - GROUNDS (continuedj
G63, Rear ground
G63a Rear right ground
G63b Rea’r left ground
G 6 4 ~ Connecter for Trip Computer - clock
G 6 5 ~Coa:xial table
G66 Motronic wiring ground
G 6 7 Moyinic connecter
G68 Con,nector A with board wiring
G69 Connector#B with board wiring
,G79
Connecter C with board wiring
G71 Con;necter for warning lamp on instruments
‘G72
Cormector for Seat back adjustment wiring
G73 ~Connecter for rear services
G73a Con’nector for right reer services
G73b Con;necter for left rear services
G74 Co&ctors between Televel rear wiring and ALFA ROMEO
Control
‘G75 Con,nector b e t w e e n r i g h t a n d l e f t r o o f pane1 s e r v i c e s
,G76 Con’necto\ for roof pane1 services - right sida
G77 Con~nactor for roof pane1 services’- ieft side
‘G78
Conlnector for front door services wiring
#‘G79 ~Con’nectoi for rear door services wiring
G80 Corrnecton for board wirmg
G81 I Con’nector for front left Seat back adjustment
G82 ~Connecter for front right Seat back adjustment
,G83 Rear connecter for fast idle device
‘G84 Consqle table connecter
,G84a Console table connecter (15 wayj
G84b Console table connecter (12-wayj
IG85 I Front service connecter
G86 Connecter for passenger compartment roof lamp
,G87 Connecter for rear door. locking motors
G88
Conne.ctor for rear tail lights
G 8 9 mtermediate connecter A
G90 I)ntermediate connecter B
G91 ’ Rear#doorlsensor g r o u n d
:G92 ~Luggage.compartment ground
G93 Windshiel,d frame upper cross member ground
G94 ~Eng/ne compartment connecter
G94a~ !O-way connecter for engine compartment
G94b 8.wày connecter for engine compartment
G94c Engine compartment connecter - right side
G94d Engine compartment connecter - left side
sG95 ~ Central fusebox
G95A Connecter for switches
;G95B Connectorl for swirches
G95C Connecter for cluster warning lamps
G95D Connecter, for ALFA ROMEO Control
G955 Connecter for console
G95F Connecter for fog light - rear fog ligh’t
G95G Cannector for combination switch
G95H Connecter for LH ‘interface
G951 Connecter for RH interface
G95L Conhector for clock . rheostats
;G95M Connecter for sun - roof
,,G95N Connecter for battery
‘G95.0 Gonhector for ignition switch
G95P Co.nnector for door services
G95Q Con.nectorl for performance gauge
G95R Connecter, for heated rear window
G95S ûonnector for cluster
G95V FL&
G 9 6 ~Single’ connecter for ALFA ,ROMEO C o n t r o l - c l u s t e r
‘G97 Connect0.r for left doors services
‘698 i Connecter for right doors serv.ices
G99,ai Conoector for engine dashboard (A)
G99,b’ Connecter for engine dashboard (Bj
G99c. Co,nnec,tor for engine dashboard (Cj
G9.9’dI Conrtector for engine dashboard (D.)
G99e Connecter for engine dashboard (Ej
GI 00 Connecter for console - doors wiring
GlOl T r i p C o m p u t e r connecter
G 1 0 2 Optoelectronic’cluster connecter
GI03 Connecter for ground. and brake fluid tank
G104 Connector for roof pane1 left pillar
G105 Connecter for ashtray lamp’
G106 Seat grounds
GI07 Connecter for fuel pump
GI08 CEM wiring ground
G109 Injection, wiring ground
Gl 10 Thermostat ‘housing ground
GI 11 Connecter for deshboard instrument wiring
GI 12aConnector A for roof wiring
GI 12bConnector B for roof wiring
G112cConnector C for roof wiring
G112d Connecter D for roof wiring
GI 13 Connecter for front left-hand fender
G114 Connecter for outside temperature sensor
GI 15 Connecter for tow bar vehicle socket
G116 Connecter for tow bar trailer plug
GI 17 Connector’for engine compartment lamp
GI 18 Connecter for luggage compartment lamp
GI 19 Connecter for vanity mirroq roof lamp
GI 20 Connecter for map reading lamp
G121 Connecter for vehicle wiring
GI 22 Connecter for ignition wiring
G123 Pedal assembly ground
GI24 Connecter for A.B.S. system
G125 A.B.S. system free fuse holder
GI 26 Fuse protecting A.B.S. system relays
GI27 Free fuse holder for identification lights
GI28 IFrea fuse holder fortransce(ver
GI29 Connecter fpr ltwo-note’horns - normal horns in engine
compartment laft side
GI30
Switchesmconnector
G I 31 Groundion u,pper caver
GI 32 Ground Ion manifold
G133aElectronic injection - ignitio~n wiring connecter A
G133bElectronic injection - ignition wiring connecter B
GI34 L e f t f r o n t pi!lar connecter
GI35 Rear window sfielf wiring connecter
G136 Front side marker intermediate connecter
GI37 Injection’supply wiring connecter
GI38 Headlights - combination switch connecter
GI39 Intercom system control unit connecter
GI40 Petrol pump attachment Nto floor services intermediate
connectbr
G141 Intermediata connecter for iear sidemarker
G142 Engine services connecter
GI43 C e n t r a l bulkhead g r o u n d
G 1 4 4 Backdoor w i r i n g connecter
G227 Mudguaid under! pane1 SecViCe connecter
H:
SWITCHES
Hl
H2
H3
H4
H5
H6
H7
H8
H9
HI0
Hll
HI2
H13
H14
H15
H16
Handbrake switch
Reversing light switch
Stop light switch
Passenger compartment roof lamp switch on pillar
Left front door ‘open indicator switdh
Right front door open indicator switch
Left’rear door open indicator switch
Right rear door :open indicabor switch
Right front brake pad switch
Left front brake pad switch
Right rear braka pad switch i
Left rear brake pad switch
Choke switch
Injection ,advance switch
Gearbox oil law, level switch, (magnetic bulbl
Starting and back-up inhibitor switch
H:
146
147
SW~ITCHES fcontinued)
Hi 7
Brake fluid minimum level check switch
H i 8 Fast-idle switch in gearbox
Low fuel pressure switch
HI9
Ine~rtia’switch
HZ0
Clutch, pedal fast idle switch
HZ1
Igniition microswitch
HZ2
Engine compartment lamp switch
HZ3
Luggage’compartment lamp switch
HZ4
Glovebox light switch
HZ5
H i 6 Cohtact switfh on rear door for rear window wiper
HZ7
Coptact switch on rear door for heated rear window
HZ8 Cadbudettor contact/switch
HZ9 Switch, for rear drive engagement warning lamp
H30 R.p.ml -,activated microswitch
H31
Swjtch’for idle r p.m. adjusting screw on carburettor
H32 Microswitch on carb’urettor for inserting timing variator
H33 Numberplate lights contact switch
H34 A.B.S. system brake fluid tank switch
H35
Fuel pre-heating filter thermal switch
H36 Diesel fuel post-heating microswitch
~
,’
1: 1;
;,
,,‘:
R,~
E~LAYS
,l’
:!
:
,l,
,N
Engin4 cooling fan relay
Heated rear window relay
Horn relay
Headlamp wiper relay
Auxiliary relay for headlight wiper timer
Fa$t idle relay
Fuel p/pe closing relay
Relay excluding retarded rotor arm
Gldw plug relay
Sta~rter inhibitor relay
Front power window and Seat raising relay
Front powar window relay
Rear power window relay
Brake fluid automatic warning lamp control relav
Low friel pressure warning light relav
Headlight relay
Fog light relay
Double contact relay
Headlight washer pump relay
Beam charrgeover relay
Full beam exclusion relay
Low beam exclusion relay
Supplementary engine cooling fan relay
Diiectjon and hazard lights relay
Rear fog light relay
@of l’amp relay
Seat height adjustment relav
Haiard light relay
Fu!el pump relay
129
Relay swith CEM diode
130
Front ;powar windows/heater relay
131
Advaye variation control unit relay
132
Cabburetor microswitch relay
133
134 Re,ar f,og light exclusion relay
Kèy operated supply relav
135
Re:layifor brake wear and liquid levi?l
136
137
Relay~for A.B.S. system control unit
buxili’ary A.B.,S. system relay
138
Brakesfluid level warning lamp relay
139
A.B.SI system brake fluid pump relay
140
Two note horns - normal horns relay
141
TWO note horns relay
142
Inspection lamp relay
4 3
Fu~el pre heating device relay
144
External rearview mirrors defrosting relay
145
II’
12
13
14’
15
16
17
18
19
110
II 1
112
11~3
114
Il’5
11’6
1 1 7
118
Il,,9
1 2 0
121
122
‘f
‘,‘,
‘,
1
L:
SENDERS
Low fuel pressumsender
Low oit pressure sender
Max air pressure sender
Thermal switch for engine cooling electromagnetic coupling
Thermal switch for engine coolant max temperature
warning lamp
Thermal switch for engine coo’ling electric fan
L6
L7 ~ Engine coolant temperature gauge sender
Oil pressure gauge sender
L8
Fuel level gauge sender
L9
Sender for, engine coolant temperature gauge and max temLlO
perature warning lamp contact
Retarded rotor arm tut-out pressure switch
Ll 1
Engine oil level sensor
L12
L13 Windscreen washirtg’liquid level sensor
Engjne coolanti level sensor
L14
Fyel’flow sensor
L15
Rev counter ptilseigenerator
L16
Speedomefer pulse generator
L17
L o a d sender
L18
External temperature sensor
L19
Photoelectsic cell
L20
Pierburg valve (Solenoid valve regulating the supercharging
L21
pressure)
Knocking sensor
L22
Potentiometer
L23
Coolant temperature sensor for ignition advance adjustment
L24
L25 Thermal switch fcir engine coolant temperature
V a c u u m sensor ~
L26
Teniperatuie,sensor
L27
Fr,ont right,brake sensor
L28
Fr,ont left (brake sensor
L29
Rearright’brake sensor
L30
Rear left brake, sensor
.L31
Supercharging,air ‘pressure sender
L32
L33 Two-level thermal: switch
Ll
L2
L3
L4 ”
L5
M:
SOLENOIDS - SOLENOID VALVES
Ml
M2
M3
M4
M5
M6
M7
M8
M9
Ml0
Ml 1
,
Fuel tut-off solenoid valve
Injection pump solenoid valve
Solenoid with injection pump fuel tut-off microswhch
Fast idle solenoid
Engine stop solenoid
~
Fuel pipe closihg solenoid
Door opeiing/closing solenoid
Auxiliary air device (for A/C equipped car)
Pierburg solenoid ‘valve (for idle r.p.m.1
Brake fluid adjustment valves
Main A!B.S. valve
N:
ELECTRONIC DEVICES - INTERMITTENCES’- TIMERS
Nl
Nla
Nlb
N2
N3
N4
N5
N6
N7
N8
Electronic ignitio? module
Electronic ignition module A
Electronic ignition module B
Connecter for Marelli module,
Capacitor,for electronic ignition
Connecter for Bosch module ~
Tachymet!ric switch device
Pre heatin’g glow plug timer
Trip Computer
ALFA ROMEO Control
40-20
A
Siren relay
Oil radiator electr(c fan relay
PA333500883300 <
S12a Fuel pump Motronic relay
S12b Motron’ic relay with’diode
SI~C Timingjvariator devi,ce Motronic relay
S12d Auxflia’ry Motronlc relay
s13 Timfng’sensor
SI4 ~Rev sensor
S15 i ThhQ variator devlce
Si6 Altitude compensation device
‘CEM control unit
SI7
S17a ‘CEM control unit whlte connecter
S17b CEM control unit black connecter
S16
Throttle angle sensor
Hall sensor
SI9
l
,Deton
lsensor
~
520
Throttle actuatoi
521
s22 ; Electroinjector terminal
S23 ~Electroinjector resistor
S24 ~Electroinjector terminal board
S26 Injection system
Lambda probe resistance
S27
S26 Injection control relay
Mlnim,um adjustment a c t u a t o r
S29
S32 ) Lambda probe coder
SAFETY DEVICES
Seat belt device
Catalytic muffler temperature indicatbr
Thermocouple for catalytlc muffler temperature detection
Suzzer signalllng unfastened seatbelt
Ruuer signalllng open door
Ddometer
Seat belt warning lamp
30,000: mile warnlng lamp
!Push-button switch on Seat belts
&talytlc muffler maximum temperature warnlng lamp
!Front left door swltch for Seat belt device
ELECTRONIC INJECTION
Injection control unlt
Relay set
Electrolnjectors
Cold start electroinjectors
Air flow sensor
Accelerator throttle switch
,Englne coolant temperature sensor
‘Thermo-time switch
Supplementary air valve
Lambda probe
Motronic control unit
Motronic relay
gc:tober 1988
i
‘,
,’
T:
Tl
T2
40=2?
i
~DIAGNOSIS
ALFA!TESTER
connecter
“Flashing Code” diagnosis connecter
PA333500883301
r
,l
BODY-SHEET METAL PANE,LS
~
49-2
BODY CO~NSTRUCTION . . . . . . . . . . .
(“1
............
(*)
BODY SEALIING
. . . . :. . . . . . . . . . . .
(“1
L’ifting points . . . . . . . . . . . . . . . . .
(“1
BODY ALIGNMENT . . . . . . . . . . . . . .
(“1
,Wheel ,alignment . . . . . . . . . . . . . . .
49-2
CAUTIONS FOR THE OPERATORS . .
(“1
(“1
REPLAmCEMENT OPERATIONS . . . . . .
(“1
GEI$ER~AL INFORMATION . . . . . . . . .
‘Identification codes
BO& COMPONENT PARTS . . . . . . . .
1’
88
(“1 Refer to “WORKSHOP MANUAL (A-) ” VOLUME I
and VOLUME II - Group 49
PA333500883300
May 1 9 8 8
,,
G E N E R A L INFO-R-MATION
”
l
WHEEL ALIGNMENT
CAUT&
The techmcians assigned to the repair and replacement operations of sheet panels,‘shall always take into account, content of
the remaining part of the “Workshop Manual” in order always to maintain original quality and functioning conditions of car
as a whole. As, restoratio’n of car correct alignment is of particular importan’ce, ~fn the~following part are provided the data
relevant’to geometr,y of both front andmrear suspensions. For any further information. refer to the specific Groups.
,/ Whkel aligkment is measured with car under nominal height (sec: Group Coi.
‘0,
!,
‘i;
8,
ï
~ 1. Front &le qnd suspension
1,
‘1
Mode1
33*x
331.3
3 3 1.7 *
331.3 s
3 3
33
331.5
Feature;
”
;,
‘,
‘,,i
,_
Rim diaineter
‘;,~
8,
mm (in)
0 =, 34Q
0 = 365
0 = 340
1
1’
(3=-l”30’
abgie
y=,2Oi-30’
y=lOk30’
External angle
6, = 270 50
6, = 290 3 3
Interna1 angle
:6, = 330 45'
C a m b e r :an~gle
Caster
33l.BTD
a x a
~,
Toe-out
~ Toe-outiangle’
1.7 IE
1 . 5 l-l
Max steering angle
~
,i’
,il
(3 = - 10 55’ i 30’
6;=
35010'
i,
2. Rea( axl,e and’ s u s p e n s i o n
,! T o e - i n anile
‘1
,i’
,i,
“,
Camb,eratgle
‘!
331.s
l-l
331.5
33
*
33 q.7 +
Electronic
injection
1.7
u=-20’*10’
~
:
axa
33l.eTD
u=QO*25
fi = 00 f ‘25
(*) Not marketed’ in all countries with 1.2 engine.
~
‘i
~
f
,l,
‘,
‘1;
49-2
PA333500883300
_.
‘,
Y
BODY-SHEET MET& PAhELS
CONTENTS ~, ~
GEjrl+AL INFORMATION
,,
~Identification codes
. . . . . . . . . . . . . 49-2
. . . . . . . . . . . . . . . . (*)
~L(fting points . . . . . . . . . . . . . . . . . . . . . .(*)
~
‘Wheel alignment . . . . . . . . . . . . . . . . . . . 49-2
‘,
, -_
B?D;~ CPMPONENT PARTS . . . . . . . . . . . (*)
BODY
~
CONSTRUGTION . . . . . . . . . . . . . . (*)
BODY ‘SEALiNG
..........
BODY ALIGNMENT
.......
. . . . . . . . . . . (*)
. . . . . . . . . . . (*)
CAUTIONS FOR THE IOPERATORS
. . . . (*)
REPLACEMENT OPEijATIONS . . . .,. . . . . (*)
(“) Refer to: “WORKSHOP MANUAL ~(Aifa33)”
-VOLUME I and V’OLUME II - Groqp 49 ~
‘8
PA3)335ooobswoo
MARCH 1988
$,,
m!,
!
:
GENERAL ‘INFORMATION
WHEEL ALIGNMENT
:i,
‘8
CAUTION:,
“,’1
;j
In orde,r ~toi maintain ‘the original quality and functioning of the vehicle as a whole. technicians must;always keeb in mind and refer to the other
parts of rthe Workshop Manual”. However. as correct alignment of the vehicle is of particular importance, the data relating to the geometry of
both front and rear suspensions is given below. For any further information refer to the specific groups.
,’
Wheel alignment ii measured with carat nominal height (see: Group 00).
,l
1,s
~ ~
” 1. Frotit laile and suspension.
Models
33 1.7 UXA A
I
Toe-oÙt
”
M-H=212
mm
a= 10’
a= 10’
mm
R,im diamet+r
;,
: ‘,
~;’
‘8
340
/
~
Ckmber angle
Casteria/7gly
365 (1)
340
340 365 (1)
(3 = -10 +-30’
p = -1%5 f30’
y = 10 230’
y=20 lrc30’
~
External angle
6, = 29O 33’
Max sfedring angle
Interna1 angle
6, = 33O 45’
6,=35OlO’
(1) With 51/2 J rim x 14 rim
i
2. ‘Re@l @xle and suspension
[[
I
T o e - i n ‘adgle,
Catynbqr
a = - 2 0 ’ *lO
l
a = 0’ +25’
ingle
(A) With: electronic injection engine for countries where antipollution regulations are in force:
l
‘, MAY lh8
49-2
PA3335OOOOS WO 1
1
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