BUICK 1949 - Restore Cars Classifieds

22
BUICK 1949
SPECIAL SERIES 40, SUPER 50, ROADMASTER 70
CONTINUED FROM PRECEDING PAGE
CONDENSER: Delco-Remy Part No. 1869704.
Capacity—.18-.23 microfarad.
DISTRIBUTOR: Delco-Remy 1110815. Automatic and
vacuum advance type with new "center-bearing"
breaker plate.
>Breaker Plate Bearing Assembly—Plate rotates on
3 bakellte buttons on support plate with spring tension adjustment (shim washers) on underside of
support plate. Pull required to move plate should be
8 oz. min., 16 oz. max. with breaker plate assembly
out of housing.
See "Delco-Remy Center-Bearing Breaker Plate Distributor" in Electrical Equipment Section.
Breaker Gap—.015". Limits .0125-.0175".
Cam Angle—Test limits with .016" gap—21-30°.
See "Delco-Remy Cam Angle" in Electrical Equipment
Section.
t>CAUTION—Use of cam angle to set point gap not
recommended by car manufacturer. If dwell meter used,
make final check that gap within .0I25-.0175"'.
Breaker Arm Spring Tension—19-23 ounces.
Rotation—Counter-clockwise viewed from above.
Distributor Automatic Advance Engine
Degrees
R.PM.
Degrees
R.P.M.
Start
250
2
_
500
7
400
14
800
13
—.1500
26
3000
Vacuum Spark Control: Delco-Remy No. 1116048.
Plunger Travel—VB".
Vacuum Advance
Distr. Degrees
Eng. Degrees Vacuum (" of HG)
Start
0*
5-7"
5Vt*
11*
10Y2-12Vz~
AGNATION TIMING
Std. Setting
Flywheel Degrees
Series 40®, 50®
4° BTDC
Series 70®
6" BTDC
<i>—Regular Fuel. ©—Ethyl Fuel.
Piston Pos.
0063" BTDC.
.0149" BTDC.
t>CAUTION—Ignition timing should be set within yellow
band of flywheel mark for proper engine performance.
8
Flywheel Mark—"ADV. 4*" (for 40, 50), "ADV. 6 "
(for 70) followed by yellow knurled section on flywheel Ya" wide which gives timing range of 1" (4-5°
for 40, 50; 6-7" for 70). Index mark located on edge
of timing hole under cover on housing above starter.
Timing (With Synchroscope)—Connect synchroscope to # 1 spark plug lead, dtrect light on flywheel
through Inspection hole In right front face of housing. Idle engine at speed not greater than 350 RPM.,
loosen two distributor hold-down screws, rotate distributor until "ADV" mark on flywheel (see Flywheel
Mark Note above) lines up with indicator, tighten
hold-down screws. Refer to Final Ignition Setting.
Timing (Without Synchroscope)—With # 1 cylinder
on compression, turn engine over until "ADV mark
on flywheel lines up with Indicator in Inspection
hole In right front face of housing. Loosen two distributor hold-down screws, rotate distributor until
contacts begin to open, tighten hold-down screws.
Final Ignition Setting—Must be within yellow band of
flywheel mark (leading edge desired). If timing advanced, engine roughness may result even with
high octane fuel. If timing retarded to overcome
heavy "ping", engine performance and economy
will be lessened (higher octane fuel should be used).
A very light "ping" may occur with part throttle on
a hard pull, or during acceleralon with wide open
throttle between 10-20 MPH. Do not retard timing
to eliminate this light "ping."
eARSORETOR
Carter WCD (All Series) or Stromberg AAV-167
(Series 40, 50), AAV-267 (Series 70). Dual downdraft
types with Automatic Choke.
Carter
Stromberg
Series 40, 50
WCD 663S
AAV-167 Code 7-69
Series 70
WCD 664S
AAV-267 Code 7-70
Casting No. (Carter)—546 (for 663S), 573 (664S) on
face of flange.
Code No. (Stromberg)—Stamped either on body or
on a metal tag attached to the body.
See Carburetor Section for complete data.
Settings (Idle Setting, Float Level, and Accelerating
Pump Setting): See Tune-Up.
Metering J e t s & Rods—See Carburetor Section for
Carter & Stromberg Jet Specifications.
Throttle Linkage Adjustment (Synchro-Mesh Transmission) : Check linkage for smooth operation of
throttle valve from closed to wide open position
(pedal correctly secured to floor, pedal rod free in
hole in floor mat. return spring proper tension for
closed position). Wide open throttle stop should be
accelerator pedal striking .floor mat (not throttle
lever stop striking boss on carburetor). Adjust as
follows: With linkage disconnected at throttle operating ball Joint, open throttle valve to wide open
position against stop, have man press accelerator
against floor mat, adjust ball Joint so screw will just
enter upper hole in throttle lever, turn ball Joint 1
or 2 turns clockwise, connect ball Joint to throttle
lever. Check choke unloader operation.
>Throttle Linkage Adjustment (Dynaflow Drive Cars):
With engine Idling at 450 RPM., clearance between
edge of bracket (attached to dash at lower end of
vertical equalizer shaft) and ear on lever (just
above shaft operating lever) should be 1/32-1/16"
(adjust at ball joint end of throttle operating rod).
Check wide open position of throttle valve with engine stopped and adjust at ball joint (as above) to
secure wide open throttle position with pedal striking floor mat (not throttle lever stop striking boss
on carburetor). Check choke unloader operation.
Check Dash-Pot Setting (following).
>Dash Pot Setting (Dynaflow Drive Cars): Turn adjusting screw on lever ahead of dash pot plunger
for 1/64-1/32" clearance between fast Idle cam and
fast idle screw with choke valve held closed.
Fast Idle: Carter Dual (WCD) Carburetor type or
Stromberg Type (AAV-167, AAV-267 Carburetors).
See Carburetion Equipment Section for data.
Setting (Carter Carb.)—Adjust fast Idle screw on
throttre shaft lever for .015" (663S), .018" (664S)
throttle opening with choke valve tightly closed and
screw on "high" step of fast Idle cam.
Setting (Stromberg)—Close choke valve on #53
(.0595") drill rod, adjust by bending fast idle cam
rod so that locking lever on throttle valve shaft Just
clears loose lever on fast idle cam stud as throttle
Is opened and closed.
Automatic Choke: Carter Climatic Control (Dual
Carb.) or Stromberg AAV-16, AAV-26 Type.
See Carburetion Equipment Section for complete data.
Setting (Carter Carb.)—Centered (index mark on
cover centered on reference mark on housing).
Setting (Stromberg)—"V" mark on cover one graduation Lean (40,50), Centered (70).
CARS. EQUQPMENT
Air Cleaner: AC No. 1544236 (40, 50 incl. Early Dynaflow), 1544638 (50 Later Dynaflow), 1544239 (70).
Filter Element—AC No. 19 (all).
Servicing—Clean and refill with 1 pint of SAE No. 50
engine oil at 5000 mile Intervals.
Fuel Pump: AC Type AJ, No. 1537337 (40, 50), 1537338
(70), diaphragm type fuel-and-vacuum pump.
Replacement Pump—AC No. 529 (40, 50), 530 (70).
Pressure—iYz-5\^ lbs. at fuel pump outlet port or
4-5 lbs. at carburetor Inlet.
See Carburetion Equipment Section for complete data.
Gasoline Gauge: AC Electric type.
Dash Unit—AC No. 1517078 (40), 1517040 (50, 70).
Tank Unit—AC No. 1516277 (40). 1517146 (50, 70).
See Carburetion Equipment Section for complete data.
8ATTERV
Delco 15E4 (40, 50): 17E4 (70); 19E4 (Optl. 50, 70);
17K4 (Export 50, 70). 6 Volt, 15 plate (15E4), 17 plate
(17E4, 17K4), 19 plate (19E4).
Grounded Terminal—Negative (—) to engine block.
Location—On right side under engine hood.
STARTER
Delco-Remy Model 1107049 (40 LHD), 1107078 (50
RHD), 1107953 (70 LHD), 1107057 (40, 50 RHD),
1107935 (70 RHD).
Armature—1867897 (Series 40, 50), 820158 (Series 70).
Drive—Overrunning clutch (solenoid pinion shift).
Rotation—Counter-clockwise at commutator end.
Brush Spring Tension—24-28 ounces.
Cranking Engine (40, 50)— 90-110 RPM., 150 amps.,
' 4.5 volts.
(70)—105 RPM., 175 amperes. 5 volts.
Performance Data—1107049, 57, 78
Torque
RP.M.
Volts
Amperes
0 ft. lbs
5000
5.7
80®
12
"
Lock
3.4
525
Performance Data—1107935, 53
0 It. lbs
5500
5.7._
80®
15
"
Lock
3.0
600
<t)—Includes current draw of starter switch.
Starting Switch: Delco-Remy Solenoid Switch No.
1118019 controlled by Stromberg Starter Switch No.
385000 (Cars with Stromberg Carb.), Carter Car
Starter Model 192-11U (Cars with Carter Carb.).
>STRGMtlEKC S7/*KTKK SB ITi.ll CHANGKS FOR IMPROVED PERFORM AN(.E: See 'Stromberg Starter
Switch" in Elertriral Equipment Section.
Starter Switch Setting: See Electrical Equipment
Section.
f-Dynaflow Neutral Safety Switch—Delco-Remy No.
1997838. At lower end of steering column. Connected
in starter control circuit so that starter operative
only with lever In "N" Neutral or "P" Parking.
> N e u t r a l Safety Switch Adjustment—See "Buick Dynaflow Drive" in Transmittion Section.
GENERATOR
Delco-Remy 1102679 (40), 1102709 (50), 1102708 (70).
Two brush types with voltage & current regulation.
Armature—D-R 1877806 (1102679), 1912599 (1102708,
9).
Charging Rate Adjustment—None. See Regulator.
Maximum Charging Rate—(1102679) 34-36 amperes,
8.0 volts, 2600 RPM., 25 MPH. (1400 Eng. RPM), Hot.