Honda Accord Civic,, Prelude Civic, Engine Instruction manual

Honda Accord Civic,, Prelude Civic, Engine Instruction manual

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The Honda Accord Civic, Prelude Civic, Accord and Prelude engines are 4-cylinder engines designed for a variety of applications. This manual provides detailed instructions on how to remove, inspect, repair, and install these engines. It also covers important procedures such as valve timing, piston ring installation, and crankshaft bearing replacement. This manual is a valuable resource for mechanics and individuals who are familiar with automotive repair and maintenance.

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Honda Accord Civic, Prelude Civic, Accord and Prelude Engines Instruction Manual | Manualzz
6-142
Honda Engines
ACCORD, CIVIC & PRELUDE 4-CYLINDER
ENGINE CODING
ENGINE IDENTIFICATION
Engine serial number is stamped on a ma-
chined pad. Pad is located on firewall side of engine near
the transaxle. Serial number is preceded by engine model
number.
ENGINE IDENTIFICATION
Application Code
Civic
1335 CC caine eee eee eas EJ1
1487 CC ............e.eeocrcccacecareoooorarereo eee e nana ann anne EM1
Accord & Prelude
(1751 CC) ............ einen ene eres EK1
ENGINE, CYLINDER HEAD
& MANIFOLDS
ENGINE
Removal
1) Remove battery cables, battery, and mount-
ing tray. Remove headlight trim, front bumper apron and
grille, to gain access to hood brackets. Remove hood.
2) Drain engine oil from crankcase. Drain
coolant from radiator and engine. Engine drain plug is
located below No. 2 spark plug. Drain gear oil from
transaxle.
3) Remove air cleaner and related hoses and
ducting. Label and disconnect all vacuum, ventilation and
air hoses between engine and chassis.
4) Label and disconnect all electrical wiring
between engine and chassis. Disconnect fuel hoses at fuel
filter. Disconnect throttle cable from carburetor.
5) Remove radiator hoses and heater hoses
from engine. If equipped, detach EGR control box and let
hang next to engine. Remove alternator. If A/C equpped,
remove compressor (with hoses connected) and bracket,
and secure away from engine.
6) On manual transaxle models, remove clutch
slave cylinder with hydraulic line attached. On automatic
transaxle models, remove oil cooling lines. Remove cable
clip and pull speedometer cable out of cable holder. DO
NOT remove cable holder.
7) Remove anti-afterburn valve. If equipped,
remove power steering pump and bracket. Place front of
vehicle on jack stands and remove front wheels.
8) On Prelude models, remove engine guards
and stabilizer bar. Disconnect both lower ball joints and tie
rod ends. Remove right and left axles.
9) On vehicles with automatic transaxle, re-
move shift console, indicator, shift cables, and housing.
On manual transaxle models, disconnect shift rod clevis
and torque rod. Disconnect exhaust pipes.
10) Attach lifting device and raise engine
enough to relieve load on engine mounts. Remove engine
support bolts, and push left engine support (timing belt
side of engine) into shock mount bracket.
11) Remove front and rear engine mounts and
torque rods. Carefully lift engine/transaxle assembly out
of vehicle, ensuring all wires and hoses are detached.
Installation
Install engine in reverse order of removal.
When replacing axles, insert shaft until spring clip “clicks”
into groove in differential side gear. Make sure all control
cables are adjusted properly.
CYLINDER HEAD
Removal
1) Disconnect negative cable from battery.
Drain cooling system. Remove air cleaner and related
hoses and ducting. Label and disconnect all electrical
wiring to cylinder head.
2) Disconnect lines, vacuum hoses and throttle
cable from carburetor, then remove carburetor. Remove
wiring and vacuum hoses from distributor. Remove
coolant hoses from cylinder head.
3) Remove header pipe from exhaust manifold.
If equipped with power steering, remove power steering
pump and set aside. On vehicles without A/C, remove bolt
securing alternator bracket to cylinder head, and loosen
alternator adjusting bolt.
4) If A/C equipped, remove compressor (with
hoses connected) and secure away away from engine.
Remove compressor bracket. Remove cam cover and
timing belt upper cover.
5) Bring No. 1 piston to TDC at end of
compression stroke. Loosen timing belt pivot and adjust-
ing bolts, then slip timing belt off camshaft sprocket.
6) Remove oil pump gear cover and pull oil
pump shaft out of cylinder head. Remove cylinder head
bolts in reverse of tightening sequence by turning 1/3 turn
at a time until all bolts are loosened. Remove cylinder
head.
Installation
1) Ensure that all mating surfaces are clean
and free of cracks. Ensure No. 1 piston is still on TDC.
Time valves by aligning camshaft sprocket timing marks.
See Figs. 3 and 4.
2) Using new head gasket, install and tighten
head bolts in 2 steps. See Fig. 1. To complete installation,
reverse removal procedure.
Fig. 1: Cylinder Head Tightening Sequence
® e ®
NN — —
‹
—
© o
@ FRONT OF VEHICLE
Timing Belt
Sprocket
=
D e
o
НН
D ® © @® O)
Tighten head bolts to 22 ft. Ibs. (30 N.m), then further
tighten to 44 ft. Ibs. (60 N.m).
MANIFOLDS
Removal
Disconnect exhaust head pipe from manifold.
Loosen 4 intake-to-exhaust manifold bolts. Remove
Copyright (c) 2003 Mitchell Repair Information Company
Honda Engines
6-143
ACCORD, CIVIC & PRELUDE 4-CYLINDER (Cont.)
manifold-to-head mounting nuts in reverse order of
tightening sequence. Remove and disassemble manifolds.
Installation
1) Use new gaskets between manifolds and
heat shield. Tighten the bolts holding manifolds together
finger tight. Place new gasket in position on cylinder head.
2) Note that spring washers used with special
nuts must be installed with dished surface facing inward.
Install and tighten manifolds. See Fig. 2. Tighten exhaust
manifold-to-intake manifold bolts.
Fig. 2: Manifold Tightening Sequence
® (0
Tighten manifolds-to-cylinder head nuts and bolts securing
manifolds together, to 16 ft. Ibs (22 N.m).
® © Y
CAMSHAFT
TIMING BELT
Removal
1) Turn crankshaft to position No. 1 piston on
TDC at end of compression stroke. Ensure valve timing
marks are aligned. See Figs. 3 and 4.
2) Remove all drive belts from pulleys. Remove
water pump pulley and crankshaft pulley. Remove upper
timing belt cover from cylinder head and remove lower
timing belt cover from engine block.
3) Loosen timing belt tensioner to relieve
tension on timing belt. If same timing belt is to be reused,
mark direction of belt rotation before removing. Slide belt
off sprockets.
CAUTION: Never expose timing belt to oil or grease, as
this will cause belt deterioration.
Installation
1) Ensure crankshaft and camshaft positions
have not changed. Install timing belt onto sprockets, using
care not to excessively bend or twist belt.
2) With tensioner adjusting and pivot bolts
loosened, rotate crankshaft counterclockwise 1/4 turn to
create tension on belt.
3) Tighten tensioner adjusting bolt (lower bolt)
first, then tighten pivot bolt (upper bolt). Reverse removal
procedures to complete installation.
VALVE TIMING
Rotate crankshaft untii TDC mark on flywheel
or driveplate is aligned with index mark. If valve timing is
correct, camshaft timing marks will be aligned as illus-
trated. See Figs. 3 and 4. Timing belt removal and
installation procedures are explained in Timing Belt.
Fig. 3: Positioning Camshaft Timing Marks
for Accord and Prelude (1751 cc engine)
Camshaft
Sprocket
“UP” Mark
Fig. 4: Positioning Camshaft Timing Marks
for Civic (1335 & 1487 cc engines)
Notched
Cutout
Notched
Cutout
Timing Mark
1335 cc
1487 cc
CAMSHAFT
Removal
1) Turn crankshaft to position No. 1 piston on
TDC at end of compression stroke. Ensure camshaft
timing marks are aligned. See Figs. 3 and 4.
2) Remove timing belt covers. Loosen belt
tensioner to relieve tension on timing belt. Remove timing
belt from camshaft sprocket. Remove camshaft sprocket.
3) Starting at ends and working towards
middle, loosen rocker arm bolts 2 turns at a time in a
criss-cross pattern until fully loosened. Remove rocker
assembly from head. Lift camshaft from cylinder head.
Installation
1) Oil camshaft journals and bearing surfaces
in caps and cylinder head. Install camshaft with keyway
pointing upward (No. 1 piston at TDC). Install rocker arm
assembly.
2) Starting with bolts at middle of rocker arm
assembly and working outward in a circular pattern,
tighten all bolts to first specification, then tighten 8 mm
bolts only, to final specification.
3) Install remaining components in reverse
order of removal. Before installing cam cover gasket,
apply non-hardening sealant to upper rounded surface of
front and rear camshaft caps.
Copyright (c) 2003 Mitchell Repair Information Company
6-144
Honda Engines
ACCORD, CIVIC & PRELUDE 4-CYLINDER (Cont.)
CAMSHAFT OIL SEAL
Removal
Using procedures explained in Camshaft re-
moval, remove camshaft sprocket from camshaft. Pry oil
seal from recess in camshaft cap.
Installation
Using seal installing tool, drive in camshaft
seal until tool bottoms. Install remaining components in
reverse order of removal.
CAMSHAFT END THRUST
1) Attach dial indicator to front end of cylinder
head with indicator point on distributor drive gear. Pry
camshaft rearward. Zero dial indicator.
2) Pry camshaft forward and record end thrust.
Desired end thrust is .002-.006" (.05-.15 mm). Maximum
allowable end thrust is .02” (.5 mm).
VALVES
VALVE ARRANGEMENT
Civic
I-E-E-I-I-E-E-| (Rear side, left-to-right).
Auxiliary intake valves (Front side)
Accord & Prelude
E-I-E-I-I-E-I-E (Rear side, left-to-right)
Auxiliary intake valves (Front side)
ROCKER ARM ASSEMBLY
Removal
Remove cam cover. Loosen rocker arm shaft
bolts in crisscross pattern starting with end caps and
working inward. To disassemble, pull out roll pins in end
caps. Keep parts in order for reassembly.
Installation
If shafts were disassembled, reassemble in
reverse order of disassembly. Install rocker arm assembly
on engine. Tighten support bolts in a circular pattern,
starting with center support bolts and working outward.
VALVE GUIDE SERVICING
Inspection
Disassemble cylinder head. Measure inside
diameter of valve guide and outside diameter of valve
stem to determine stem-to-guide clearance. If clearance is
excessive, replace guides and install new valves.
Removal
Heat cylinder head to 300°F (150°C). Using a
valve guide driver tool, drive out guide from combustion
chamber side of head.
Installation
Install new guides from top of head with driver
and adapter tool (07943-SA50000). Drive guide in until
adapter bottoms on head. Ream valve guides to provide
proper clearance.
VALVE SPRINGS
Removal
Remove cylinder head from engine. Using
valve spring compressor, remove valve keepers, retainer
and springs. Keep parts in order for later installation.
inspection
Using a steel square and flat surface, check
valve springs for squareness. Measure free length of
valve springs. Using valve spring tension tester, measure
spring tension.
Installation
Install in reverse of removal procedure. Install
springs with closely wound coil end towards spring seat.
Check valve spring installed height, and adjust as
necessary.
VALVE SPRING INSTALLED HEIGHT SPECIFICATIONS
Measurement
Application In. (mm)
Auxiliary Valve Spring .........................ee. eee... .98 (25.0)
Intake & Exhaust
Inner Valve Spring ere 1.40 (35.6)
Outer Valve Spring o.oo eee 1.49 (37.8)
VALVE STEM OIL SEALS
When replacing valve stem oil seals, note that
seals for intake valves have a white spring. Oil seals for
exhaust valves have a black spring.
AUXILIARY INTAKE VALVES
1) Remove auxiliary valve holder nut using
special “T” wrench (07907-6570001). Remove valve holder
assembly using slide hammer tool (07741-0010100).
Auxiliary chamber collar may be removed with a slide
hammer type puller.
2) Compress spring and remove keepers.
Disassemble and inspect valve assembly. Valve seat may
be reconditioned, however entire assembly should be
replaced if any component exceeds service limit.
3) Install chamber in each auxiliary valve hole
with 2 new gaskets. Insert alignment tool (07944-6590000)
in spark plug hole to center the chamber.
4) Install new “O” ring on auxiliary valve
assembly, then install in chamber. Using “T” wrench used
for removal, tighten holder nut.
VALVE CLEARANCE ADJUSTMENT
1) Adjust valves with engine cold. Remove cam
cover. Rotate crankshaft so that No. 1 piston is on TDC at
end of compression stroke. Adjust valve clearances on
No. 1 cylinder.
2) Rotate crankshaft counterclockwise 180° so
that No. 3 piston is on TDC at end of compression stroke.
Adjust valve clearances on No. 3 cylinder.
3) Rotate crankshaft counterclockwise 180°
and adjust valve clearances on No. 4 cylinder. Rotate
crankshaft counterclockwise 180° and adjust valve clear-
ances on No. 2 cylinder.
VALVE CLEARANCE SPECIFICATIONS
Clearance
Application In. (mm)
1335 cc and 1487 cc
Intake and Auxiliary ...................... .005-.007 (.12-.17)
Exhaust ...............e.eeeceerecerecencenenee .007-.009 (.17-.22)
1751 cc
Intake and Auxiliary ...................... .005-.007 (.12-.17)
Exhaust ............e.ee...eeecesncecrcenceneno. .010-.012 (.25-.30)
Copyright (c) 2003 Mitchell Repair Information Company
6-145
Honda Engines
ACCORD, CIVIC & PRELUDE 4-CYLINDER (Cont.)
PISTONS, PINS & RINGS
PISTON & ROD ASSEMBLY
Removal
1) With oil pan and cylinder head removed,
remove any ridge from top of cylinder bore. Mark
connecting rod and cap for cylinder identification.
NOTE: Do NOT confuse number stamped on con-
necting rod and cap with number indicating
position of assembly in engine. This number
indicates rod big end bore size only.
2) Remove rod cap. Push piston and rod
assembly out top of cylinder block. Install cap on rod from
which removed.
Installation
1) Lubricate piston, rings and cylinder bore
with engine oil. Install piston rings and properly space end
gaps on piston. See Fig. 5.
2) Install piston and rod into cylinder bore.
When properly installed, mark on piston head and oil hole
in connecting rod will be positioned toward manifold side.
See Fig. 6. Install and tighten rod cap.
Fig. 5: Piston Ring End Gaps
/ 5 Spacer Gap
/ A 150
\
Oil Ring Gap
No Ring
Gaps Here
=== === = == тете No Ring Gaps
== = = = = = = = = - = -- in Line With
Piston Pin
90°
2nd Ring Gap
(“2R" Marking Up) y
Top compression ring is identified by two 30° chamfers
on outer edge.
Fig. 6: Piston-to-Connecting Rod Relationship
FITTING PISTONS
1) Measure cylinder bore for out-of-round and
taper. If out-of-round exceeds .002” (.05 mm) or taper
exceeds .004” (.10 mm), rebore cylinder for oversize
pistons.
2) Determine piston-to-cylinder bore clearance.
If not within specifications, rebore cylinder and install
oversize pistons.
3) Oversize pistons are available in diameters
of 2.843" (72.21 mm) for 1335 cc engines, 2.927” (74.35
mm) for 1487 cc engines and 3.040” (77.22 mm) for 1751
cc engines.
FITTING RINGS
1) Push a ring into cylinder bore approximately
3/4” from bottom of bore. Ring must be square in bore.
Using a feeler gauge, measure ring end gap. Compare
measurement with specifications.
2) Install rings onto piston. Both compression
rings are chamfered. Note that top compression ring has
two 30° chamfers on outer edge. Second compression
ring’s outer edge is slightly chamfered.
3) Using a feeler gauge, measure ring side
clearance between ring and ring land. If ring lands have
high steps or are excessively worn, replace piston.
4) Properly space ring end gaps on piston. See
Fig. 5. Make sure no end gaps are in line with piston pin
or thrust face of piston. Install rings with manufacturer's
marking facing upward.
PISTON PIN REPLACEMENT
Removal
Using a hydraulic press and piston pin remov-
er/installer tool set, remove piston pin from piston and
connecting rod.
Installation
1) Assemble connecting rod to piston with oil
hole in rod and correct marking on piston head on same
side. Note that some pistons have two markings on the
piston head. See Fig. 6.
2) Lightly lubricate new piston pin with engine
oil. Using piston pin installing tool set, press new pin into
piston and connecting rod until pin is centered in rod.
ONE MARK
Oil Hole
2 MARKS
SAME SIDE
2 MARKS
OPPOSITE SIDES
E
Oil Hole
De
Oil Hole
Oil hole in connecting rod allows lubrication to thrust side of cylinder wall and piston.
Copyright (c) 2003 Mitchell Repair Information Company
6-146
Honda Engines
ACCORD, CIVIC & PRELUDE 4-CYLINDER (Cont.)
CRANKSHAFT MAIN
& CONNECTING
ROD BEARINGS
CAUTION: Replace crankshaft if journals are worn. DO
NOT regrind crankshaft, as bearing journals
are specially heat-treated.
CRANKSHAFT MAIN BEARINGS
1) Prior to disassembly, ensure main bearing
caps are marked for identification, for reassembly in their
original positions.
2) Using Plastigage method, check bearing
clearances. Ensure oil film is wiped from surfaces to be
checked.
3) A code indicating cylinder block bore size
for each main journal is stamped into the cylinder block.
See Figs. 7 and 8. Crankshaft main journal sizes are
coded, and stamped into the crankshaft. See Fig. 9. Use
these codes to obtain correct replacement bearings.
Fig. 7: Location of Size Code for Main Journal Bore
(1751 cc and 1487 Engines)
| ANZ uu
Crankshaft Bore
7 Identification Code
7 (Numbers or Roman Numerals)
Rear Flange O
of Block uu ( —
—
Flywheel End
Fig. 9: Crankshaft Main & Rod Journals Identification Codes
Fig. 8: Location of Size Code for Main Journal Bore
(1335 cc Engine)
Letter Codes
For Each Main
Bearing Bore
Crankshaft
Main Bearing
Bore Sequence
4) With crankshaft removed from engine,
measure for bend, out-of-round and taper. If any mea-
surement exceeds specifications in Crankshaft Wear
Specifications table, replace crankshaft.
CRANKSHAFT WEAR SPECIFICATIONS
Standard Service Limit
Application In. (mm) In. (mm)
Runout ..................... .0012 (.030) ......... .0024 (.060)
Taper ...................._.. .0002 (.005) ......... .0004 (.010)
Out-of-Round .......... .0002 (.005) ......... .0004 (.010)
Connecting Rod Journal Codes (Letters)
y Connecting Rod Size Code (Numbers)
Color Coded Identification
Copyright (c) 2003 Mitchell Repair Information Company
Honda Engines
6-147
ACCORD, CIVIC & PRELUDE 4-CYLINDER (Cont.)
CONNECTING ROD BEARINGS
1) Prior to disassembly, ensure main bearing
caps are marked for reassembly in their original positions.
Also, check connecting rod side play.
2) Using Plastigage method, check bearing
clearances. Ensure oil film is wiped from surfaces to be
checked.
3) A code is stamped on each connecting rod
and cap, indicating bore size of rod’s big end. Crankshaft
rod journals size codes are stamped on crankshaft
counterweight pads. See Fig. 8. Use both codes to obtain
correct replacement bearings.
CRANKSHAFT END THRUST
1) Attach a dial indicator to engine with
indicator point on end of crankshaft. Push crankshaft
away from dial indicator and zero dial indicator.
2) Firmly pull crankshaft towards dial indicator
and record measurement. If not within specification,
inspect thrust washers and thrust surface of crankshaft.
3) Replace worn parts as necessary. Thrust
washer thickness is fixed. Do not change thrust washer
thickness by grinding or shimming.
REAR MAIN BEARING OIL SEAL
1) When replacing oil seal, be sure seal bore in
cap is dry. Apply non-hardening sealant to inside of seal
bore, at cap-to-block parting line.
2) Coat crankshaft and seal lip with engine oil.
Install seal with part number side facing outward. Drive in
seal until it bottoms against block.
Fig. 10: Disassembled View of Oil Pump Assemblies
FRONT MAIN BEARING OIL SEAL
To replace front main bearing oil seal, use
procedures set forth in Rear Main Bearing Oil Seal.
ENGINE OILING
Oil pump is driven off camshaft. If pump
driven gear is damaged, most likely camshaft
drive gear is damaged. In this case, both
camshaft and oil pump driven gear must be
replaced.
CRANKCASE CAPACITY
Crankcase capacity is 3.2 quarts (3.0L) without
oil filter replacement; 3.7 quarts (3.5L) when replacing oil
filter.
NOTE:
NORMAL OIL PRESSURE
For all models, minimum oil pressure at idle
should be 21 psi (1.45 kg/cm?). For Civic models, oil
pressure at 3000 RPM should be 48-60 psi (3.4-4.2
kg/cm?). For Accord and Prelude models, oil pressure at
3000 RPM should be 54-65 psi (3.8-4.6 kg/cm”).
ENGINE OILING SYSTEM
A rotor type oil pump draws oil from oil pan
and delivers it under pressure to main and connecting rod
bearings. An oil hole in each connecting rod lubricates
thrust side of piston and cylinder wall. An oil passage
Gear Cover
Dowel Pin =—3=3 ©
Gear AA
Lock Pin ==
Pump Housing
1 «——— Quter Rotor
+, _ ;
Le Inner Rotor
?
Gasket ‘7
1 Pump Cover
(=) Relief Valve
Assembly
“SZ
> Screen
Cotter Pin
Manual Transmission
Ÿ a Gear Cover
Dowel Pin
~~
E
ly | Pump Housing
LOCK Pin emg
Shaft —
Upper Rotors
I
Y Lock Pin
Pump Shaft = |
/ Dowel Pin pa” Cot" Pin
| Y el
Gasket < и SS
Relief Valve
173$
Housing Relief Valve
Assembly
Lower Rotors
Relief Valve |
Assembly A
Cotter Pin Gasket
Pump cover
de Screen
Automatic Transmission
Oil pumps for 1751 cc engine shown, other engines similar.
Copyright (c) 2003 Mitchell Repair Information Company
6-148
Honda Engines
ACCORD, CIVIC & PRELUDE 4-CYLINDER (Cont.)
carries oil to camshaft bearings and rocker arms. Oil
spray lubricates valve stems.
OIL PUMP
Removal & Disassembly
1) Remove oil pan. Remove oil pump assembly
from engine. Remove bolts securing pump cover to pump
body. Before removing pump cover, note the following:
2) Oil pumps on some models (equipped with
automatic transmission) have 2 sets of pump rotors. On all
models, mark installed position(s) of rotors to ensure they
will be installed in their original rotor-to-rotor relation.
3) Disassemble oil pump. To remove relief
valve and related components, remove cotter pin from
pump cover (or relief valve body). See Fig. 10.
Inspection
1) Thoroughly clean all parts. Inspect all parts
for wear or damage. On pumps with 2 sets of rotors and
relief valve assemblies, inspection procedures and specifi-
cations apply to both sets.
2) With rotors installed in housing, use a feeler
gauge to check clearance between inner rotor lobe and
outer rotor. Compare measurement with specifications.
3) With rotors installed in housing, use a feeler
gauge to check clearance between outer rotor and
housing. Compare measurement with specifications.
4) Place rotors in housing. Lay housing gasket
over housing and lay a straightedge over gasket. Insert a
feeler gauge between straightedge and rotor assembly to
measure rotors end play. Compare measurement with
specifications.
5) Check fit of relief valve in its bore. Valve
must slide freely in bore. If valve is scored, replace it.
Check free length of relief valve spring.
OIL PUMP SPECIFICATIONS
Standard Service Limit
Application In. (mm) In. (mm)
Rotor Lobe
Clearance ................ 002-.006 ....................... .008
(.04-.14) ...............eeem..... (.20)
Outer Rotor
to Housing ............... .004-.007 ..............e.. a... .008
(.10-.18) unes (.20)
Rotor End Play .......... 001-004 ....................... .006
(.03-.10) cei, (.15)
Spring Free
Length ... 2.00-2.10 ....................... 2.00
(50.8-53.3) .............. (50.8)
ENGINE COOLING
THERMOSTAT
Thermostat begins opening about 176-183°F (80-84°C)
and is fully open at 203°F (95°C).
COOLING FAN THERMOSWITCH
At temperatures of 191-197°F, thermoswitch actuates
cooling fan.
COOLANT CAPACITY
Civic
Refill capacity (including reserve tank) for
models with 1335 cc engine is 4.0 quarts (3.8L). For
models with 1487 cc engine, refill capacity is 4.9 quarts
(4.6L).
Accord & Prelude
Refill capacity (excluding reserve tank is 5.8
quarts (5.5L).
WATER PUMP
Removal
Drain radiator and loosen alternator adjusting
bolts. Push alternator toward engine and remove drive
belt. Remove water pump and “O” ring seal.
Installation
1) Reinstall water pump. Loosen cooling
system bleed valve located on thermostat housing. Fill
radiator with coolant. When air bubbles no longer appear
in coolant, close valve.
2) Start engine. Set heater temperature control
lever to high position. Run engine about 10 minutes, then
open bleed valve again. Allow coolant to drain from bleed
valve until air bubbles disappear, then close valve. Refill
radiator.
TIGHTENING SPECIFICATIONS
Reassembly & Installation
1) Using new gaskets as necessary, reassem-
ble pump in reverse order of disassembly. Make sure
rotors are installed in their original positions.
2) Place oil pickup in container of oil and
operate pump with screwdriver to prime pump. Place
finger over outlet hole and check that pressure is created
as pump is turned.
3) Install oil pump in reverse order of removal
procedures.
Application Ft. Lbs. (N.m)
Camshaft Sprocket ............................reeeeceeeeeeeee 22 (30)
Connecting Rod ..…....................……...….…......…ereecccrres 21 (28)
1751 cc Engine o.oo, 23 (31)
Cylinder Head ..............…..….........…ercccccccrseneeneese 44 (60)
Drive Plate
1335 cc & 1487 cC Engines ............................. 36 (49)
1751 cc Engine ooo, 54 (73)
Flywheel
1335 cc á 1487 cc Engines ........................—.... 51 (69)
1751 cc Engine .….........…....….........…....….….rersrrensores 76 (103)
Intake-to-Exhaust Manifold BoltS ..................... 16 (22)
Main Bearing Bolts
1335 cc Engine eee, 29 (39)
1487 cc Engine coven a 32 (43)
1751 cc Engine ..........................iecceeeme ene. 48 (65)
Manifold Nuts .........................eeeecrcccreceen e e 16 (22)
Rocker Arm Support
6 mM Bolts eee 9 (12)
8 mm BOIS eco nece. 16 (22)
Timing Belt Adjustment Bolt
1335cc & 1487 cc Engines essen 32 (44)
1751 cc Engine eevee 22 (30)
Timing Belt Pivot Bolt
1335 cc 6 1487 cc Engines ............................ 32 (44)
1751 cc Engine ...................eeeeermeveenacerreeee nee. 22 (30)
Copyright (c) 2003 Mitchell Repair Information Company
Honda Engines 6-149
ACCORD, CIVIC & PRELUDE 4-CYLINDER (Cont.)
ENGINE SPECIFICATIONS
GENERAL SPECIFICATIONS
isplace Bore Stroke
Displacement Torque Compr.
Year Cu. In. cc Fuel System HP@RPM Ft. Lbs. @RPM Ratio In. mm mm
1982
Civic 1300 81 1335 1х 3-ВЫ. | ..... | eee 9.3:1 2.83 72.0 3.23 82.0
Civic 1500 91 1487 1х 3-ВЫ. | .... | ... 9.3:1 2.91 74.0 3.41 86.5
Accord
& Prelude 107 1751 1х 3-ВЫ. | .... | Lee 8.8:1 3.03 77.0 3.70 94.0
VALVES
Head Seat Stem Stem Valve
Engine Size Diam. Face Seat Width Diameter Clearance Lift
& Valve In. (mm) Angle Angle In. (mm) In. (mm) In. (mm) in. (mm)
1335 cc & 1487 cc
Intake 1.366-1.374 45° 45° .049-.061 .2591-.2594 .0008-.0020 | ....
(34.70-34.90) (1.25-1.55) (6.580-6.590) (.020-.050)
Exhaust 1.098-1.106 45° 45° .049-.061 2574-2578 .0025-.0037 | ....
(27.90-28.10) (1.25-1.55) (6.537-6.547) (.063-.093)
Auxiliary .469-.476 45° 45° .014-.019 ‚2587-.2593 .0009-.0023 | ....
1751 (11.90-12.10) (.35-.49) (6.572-6.587) (.023-.058)
cc
Intake 1.374-1.382 45° 45° .049-.061 2748-2751 .0008-.0020 | — .....
(34.90-35.10) (1.25-1.55) (6.98-6.99) (.020-.050)
Exhaust 1.098-1.106 45° 45° .049-.061 .2732-.2736 .0024-.0035 | ....
(27.90-28.1) (1.25-1.55) (6.94-6.95) (.060-.090)
Auxiliary .469-.476 459 45° .014-.019 .2587-.2593 .0009-.0023 | ....
(11.90-12.10) (.35-.49) (6.572-6.587) (.023-.058)
PISTONS, PINS, RINGS
PISTONS PINS RINGS
Clearance Piston Fit Rod Fit Ring End Gap Side Clearance
Engine In. (mm) In. (mm) In. (mm) No. In. (mm) In. (mm)
1335 cc .0004-.0020 .0004-.0009 .0006-.0015 No. 1 &2 .006-.014 .0012-.0024
(.010-.050) (.010-.022) (.016-.039) (.15-.35) (.030-.060)
Oil 012-035 | | .....
(.30-.90)
1487 cc .0004-.0024 .0004-.0009 .0006-.0016 No. 1 &2 .006-.014 .0012-.0020
(.010-.060) (.010-.022) (.014-.040) (.15-.35) (.030-.050)
Oil 012-035 | | ......
(.30-.90)
1751 cc .0004-.0024 .0004-.0009 .0007-.0017 №. 1 & 2 .006-.014 .0008-.0018
(.010-.060) (.010-.022) (.014-.043) (.15-.35) (.020-.045)
Oil (012-035 | ...
(.30-.90)
CRANKSHAFT MAIN & CONNECTING ROD BEARINGS
MAIN BEARINGS CONNECTING ROD BEARINGS
Crankshaft
Journal Diam. Clearance Thrust End Play Journal Diam. Clearance Side Play
Engine In. (mm) In. (mm) Bearing In. (mm) In. (mm) In. (mm) In. (mm)
1335 cc 1.9676-1.9685 .0009-.0017 No. 4 .004-.014 1.5739-1.5748 .0008-.0015 .006-.012
(49.976-50.000) (.024-.043) (.10-.35) (39.976-40.000) (.020-.038) (.15-.30)
1487 cc 1.9687-1.9697 .0010-.0022 No. 4 .004-.014 1.6526-1.1635 .0008-.0015 .006-.012
& 1751 cc (50.006-50.030) (.026-.055) (.10-.35) (41.976-42.000) (.020-.038) (.15-.30)
Copyright (c) 2003 Mitchell Repair Information Company
6-15 Honda Engines
ACCORD, CIVIC & PRELUDE 4-CYLINDER (Cont.)
ENGINE SPECIFICATIONS (Cont.)
CAMSHAFT
Journal Diam. Clearance Lobe Lift
Engine In. (mm) In. (mm) In. (mm)
1335 сс | ee 002-004 | .....
1487 cc (.05-.10)
1751 cc
VALVE SPRINGS
PRESSURE
Free Lbs. @ In. (Kg @ mm)
Length
Engine In. (mm) Valve Closed Valve Open
1335 cc
1487 cc
1751 cc
Inner 1665 | ... 27-33(01.03
(42.30) (12-15(@26.2)
Outer 1.665 | ... 94-114(01.11
(42.30) (43-52(028.3)
Auxiliary 117 |... 26-32(0.87
(29.7) | (12-14(022.0)
Copyright (c) 2003 Mitchell Repair Information Company

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Key Features

  • Engine removal and installation
  • Cylinder head removal and installation
  • Manifold removal and installation
  • Valve timing and adjustment
  • Piston, rings, and pin replacement
  • Crankshaft bearing replacement
  • Oil pump removal, inspection, and installation
  • Cooling system maintenance
  • Engine specifications

Frequently Answers and Questions

How do I remove the cylinder head?
To remove the cylinder head, you will need to disconnect the negative battery cable, drain the cooling system, remove the air cleaner and related hoses, disconnect all electrical wiring to the cylinder head, and remove the carburetor, distributor, and coolant hoses from the cylinder head. Then remove the header pipe from the exhaust manifold, remove the power steering pump if equipped, loosen the alternator adjusting bolt, remove the compressor (with hoses connected) and bracket, remove the cam cover, and the timing belt cover. Next, bring No. 1 piston to TDC at the end of the compression stroke. Loosen the timing belt pivot and adjusting bolts, then slip the timing belt off the camshaft sprocket. Finally, remove the oil pump gear cover, pull the oil pump shaft out of the cylinder head, and remove the cylinder head bolts in reverse of the tightening sequence. Then, remove the cylinder head.
How do I adjust the valve clearance?
To adjust the valve clearance, you will need to rotate the crankshaft so that No. 1 piston is on TDC at the end of the compression stroke. Then, adjust the valve clearances on No. 1 cylinder. Rotate the crankshaft counterclockwise 180° so that No. 3 piston is on TDC at the end of the compression stroke. Then, adjust the valve clearances on No. 3 cylinder. Rotate the crankshaft counterclockwise 180° and adjust the valve clearances on No. 4 cylinder. Finally, rotate the crankshaft counterclockwise 180° and adjust the valve clearances on No. 2 cylinder. Ensure valves are adjusted with engine cold.
What is the crankcase capacity?
The crankcase capacity is 3.2 quarts (3.0L) without oil filter replacement; 3.7 quarts (3.5L) when replacing the oil filter.
How do I replace the rear main bearing oil seal?
To replace the rear main bearing oil seal, you will need to ensure the seal bore in the cap is dry. Then, apply non-hardening sealant to the inside of the seal bore, at the cap-to-block parting line. Next, coat the crankshaft and seal lip with engine oil. Install the seal with the part number side facing outward. Finally, drive in the seal until it bottoms against the block.
What is the valve clearance for a 1751 cc engine?
The valve clearance for a 1751 cc engine is: .005-.007 (.12-.17) for intake and auxiliary valves, and .010-.012 (.25-.30) for exhaust valves.
What is the oil pressure for a Civic model?
The oil pressure for a Civic model should be 21 psi (1.45 kg/cm?) at idle and 48-60 psi (3.4-4.2 kg/cm?) at 3000 RPM.
How do I replace the water pump?
To replace the water pump, you will need to drain the radiator, loosen the alternator adjusting bolts, push the alternator toward the engine, and remove the drive belt. Once the water pump is removed, you can reinstall it. Loosen the cooling system bleed valve located on the thermostat housing and fill the radiator with coolant. Once the coolant stops bubbling, close the valve. Start the engine and set the heater temperature control lever to a high position. Let the engine run for about 10 minutes, then open the bleed valve again. Allow coolant to drain from the bleed valve until air bubbles disappear, and close the valve. Then refill the radiator.

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