1942 OLDSMOBILE



Model Designations:

Oldsmobile, Special 6, Series 66 (F), 6 Cylinder

Oldsmobile, Special 8, Series 68 (E), 8 Cylinder

Oldsmobile, Dynamic 6, Series 76 (G), 6 Cylinder

Oldsmobile, Dynamic 8, Series 78 (J), 8 Cylinder

Oldsmobile, Custom Cruiser 8, Series 98 (L), 8 Cylinder



Oldsmobile, Special, Series 66 & 88, 6 & 8 Cylinder, Body Styles



2 Door Convertible, 3 Passenger, Body #423567

Base Price: $1,277; Shipping Weight: 3,400 Pounds; Production Total: 848


2 Door Business Coupe, 3 Passenger, Body # 423527B

Base Price: $992; Shipping Weight: 3,230 Pounds; Production Total: 1,116


2 Door Club Coupe, 5 Passenger, Body # 423507

Base Price: $1,050; Shipping Weight: 3,270 Pounds; Production Total: 10,766


2 Door Sedan, 5 Passenger, Body # 423511

Base Price: $1,040; Shipping Weight: 3,275 Pounds; Production Total: 3,688


4 Door Sedan, 5 Passenger, Body #423519

Base Price: $1,088; Shipping Weight: 3,320; Production Total: 8,053


4 Door Town Sedan, 5 Passenger, Body #423569

Base Price: $1,088; Shipping Weight: 3,315 Pounds; Production Total: 3,888


4 Door Station Wagon, 6 Passenger, Body #4235SW

Base Price: $1,376; Shipping Weight: 3,515 Pounds: Production Total: NA





Oldsmobile, Dynamic, Series 76 & 78, 6 & 8 Cylinder, Body Styles


2 Door Coupe, Club Sedan, 5 Passenger, Body #423607

Base Price: $1,095; Shipping Weight: 3,485 Pounds: Production Total: 14,701


4 Door Sedan, 5 Passenger, Body #423609

Base Price: $1,153; Shipping Weight: 3,510 Pounds; Production Total: 12,566



Oldsmobile, Custom Cruiser, Series 98 , 8 Cylinder, Body Styles


2 Door Convertble, 4 Passenger, Body # 423967

Base Price: $1,561; Shipping Weight: 3,740 Pounds; Production Total: 216


2 Door Club Sedan, 5 Passenger, Body # 423907

Base Price: $1,319; Shipping Weight: 3,620 Pounds; Production Total: 1,771


4 Door Sedan, 5 Passenger, Body #423969

Base Price: $1,376; Shipping Weight: 3,780; Production Total: 4,672




General Specifications


Oldsmobile, Special 66 (F), 6 Cylinder

Wheelbase: 119

Engine: Inline 6 Cylinder, L-Head

Bore & Stroke: 3-1/2" X 4-1/8"

Engine Displacement: 238.1 Cu. In.

Compresssion Ratio: 6.50 to 1

Taxable Horsepower: 29.40

Horsepower: 100 @ 3,400 RPM

Torque: 190 Ft Lbs @ ? RPM

Rear Axle Ratio: : 4.10:1

Carburetor: Single Downdraft with Automatic Choke .

Tire Size: 6.00 x 16 inches; Inflation Pressure, Front 28, Rear 28


Oldsmobile, Dynamic 76 (G), 6 Cylinder

Wheelbase: 125

Engine: Inline 6 Cylinder, L-Head

Bore & Stroke: 3-1/2" X 4-1/8"

Engine Displacement: 238.1 Cu. In.

Compresssion Ratio: 6.50 to 1

Taxable Horsepower: 29.40

Horsepower: 100 @ 3,400 RPM

Torque: 190 @ ? RPM

Rear Axle Ratio: : 4.30:1

Carburetor: Single Downdraft with Automatic Choke .

Tire Size: 6.50 x 15 inches; Inflation Pressure, Front 26, Rear 26




Capacities, 6 Cylinder Models


Cooling System: 18-1/2 Quarts

Fuel Tank: 19 Gallons;

Engine Oil Refill: 5 Quarts;

Grade of Oil: Above +32F 20;

Above +10F 20W;

Above -10F 10W

Manual Transmission: 2 Pints

Grade of Oil: Summer 90, Winter 90

Hydra-Matic Transmission: 9 Quarts on Refill; 10 Quarts on Overhaul

Rear Axle: 2-1/2 Pints

Grade of Oil: Summer 90H, Winter 90H



Tune Up Specifications, 6 Cylinder Models


Spark Plug Type: Champion J-8, J-11, or Equivalent

Spark Plug: Gap .040"

Point Gap: .020"

Distributor Cam Angle: 35 degrees

Ignition Timing: "TDC" Mark on Flywheel

Firing Order: 153624

Tappet Clearance, Hot: Intake .008", Exhaust .011"

Cylinder Head Torque: 60-70 Ft Lbs


Engine Bearing Data, 6 Cylinder Models


Camshaft End Play: Forward thrust is taken by a semi-circular flange in the front engine plate with the cylinder block taking the backward thrust.

Camshaft Bearing Clearance: .0015"-.0035"

Rod Journal Diameter: 2.123"-2.124"

Rod Bearing Clearance: .0005"-.0025"

Rod End Play: .005"-.010" inches

Rod Bolt Tension: 50-55 Lbs. Ft.

Main Bearing Journal Diameter:

#1: 2.478"-2.479"; #2: 2.5405"-2.5415";

#3: 2.6655"-2.6665"; #4: 2.6855"-2.6865;

Main Bearing Clearance: .0005" -.0025" for Front Main; .001"-.003" for Others

Crankshaft End Play: .004"-.008"

Main Bolt Tension: #1, 2, & 3: 100 Ft Lbs; #4, 140 Ft Lbs



Valve Specifications, 6 Cylinder Models


Tappet Clearance, Running Hot: Intake .008"; Exhaust .011"

Clearance for Timing: Intake: .0125"; Exhaust: .0155"

Valve Timing: Intake Opens 5 Degrees Before Top Dead Center

Exhaust Closes 5 degrees After Top Dead Center

Valve Seat Angle: Intake 30 degrees; Exhaust 45 degrees,

Valve Spring Pressure: 55 Lbs @ 2-1/4 inches (New Springs)

Valve Stem Clearance: Intake .002" -.004"

Exhaust .0025"-.004"




Piston & Ring Data, 6 Cylinder Models


Piston Removal: From Above

Piston Clearance (Minimum):

Top Land Inch .023"

Top of Skirt, Inch: .0013"

Fitting Pistons with Spring Scale:

Shim Thickness: .0015"

Pounds Pull on Scale: 7 to 20

Width of Ring End Gap (Minimum):

Compression Ring: .008"

Oil Ring: .007"

Clearance Between Ring & Grooves:

Compression Ring: .001"-.003"

Oil Control Ring: .001"-.0025"





General Specifications


Oldsmobile, Special 68 (E), 8 Cylinder

Wheelbase: 119 Inches

Engine Type: Inline 8 Cylinder, L-Head

Bore & Stroke: 3-1/4" X 3-7/8"

Engine Displacement: 257.1 Cu. In.

Compresssion Ratio: 6.50 to 1

Taxable Horsepower: 33.80

Horsepower: 110 @ 3,600 RPM

Torque: 200 Ft Lbs @ ? RPM

Rear Axle Ratio: 4.1:1;

Carburetor: Dual Downdraft with Automatic Choke

Tire Size: 6.50 x 15 inches; Inflation Pressure, Front 26, Rear, 26




Oldsmobile, Dynamic 78 (J), 8 Cylinder

Wheelbase: 125 Inches

Engine Type: Inline 8 Cylinder, L-Head

Bore & Stroke: 3-1/4" X 3-7/8"

Engine Displacement: 257.1 Cu. In.

Compresssion Ratio: 6.35 to 1

Taxable Horsepower: 33.80

Horsepower: 110 @ 3,600 RPM

Torque: 200 @ ? RPM

Rear Axle Ratio: 4.3:1;

Carburetor: Dual Downdraft with Automatic Choke

Tire Size: 6.50 x 16 inches; Inflation Pressure, Front 28, Rear, 28



Oldsmobile, Custom Cruiser 98 (L), 8 Cylinder

Wheelbase: 127 Inches

Engine Type: Inline 8 Cylinder, L-Head

Bore & Stroke: 3-1/4" X 3-7/8"

Engine Displacement: 257.1 Cu. In.

Compresssion Ratio: 6.50 to 1

Taxable Horsepower: 33.80

Horsepower: 110 @ 3,600 RPM

Torque: 200 @ ? RPM

Rear Axle Ratio: 4.3:1;

Carburetor: Dual Downdraft with Automatic Choke

Tire Size: 7.00 x 15 inches; Inflation Pressure, Front 25, Rear, 25



Capacities, 8 Cylinder Models


Cooling System: 20-1/2 Quarts

Fuel Tank: 19 Gallons;

Engine Oil Refill: 6 Quarts;

Grade of Oil: Above +32F 20;

Above +10F 20W;

Above -10F 10W

Manual Transmission: 2 Pints

Grade of Oil: Summer 90, Winter 90

Hydra-Matic Transmission: 9 Quarts on Refill; 10 Quarts on Overhaul

Rear Axle: 2-1/2 Pints

Grade of Oil: Summer 90H, Winter 90H




Tune Up Specifications, 8 Cylinder Models


Spark Plug Type: Champion J-8, J-11, or Equivalent

Spark Plug: Gap .030"

Point Gap: .015"

Distributor Cam Angle: 31 degrees

Ignition Timing: Steel Ball in Flywheel

Firing Order: 16258374

Tappet Clearance, Hot: Intake .008", Exhaust .011"

Cylinder Head Torque: 60-70 Ft Lbs



Engine Bearing Data, 8 Cylinder Models


Camshaft End Play: Forward thrust is taken by a semi-circular flange in the front engine plate with the cylinder block taking the backward thrust

Camshaft Bearing Clearance: .0015"-.0035"

Rod Journal Diameter: 2.123"-2.124"

Rod Bearing Clearance: .0005"-.0025"

Rod End Play: .005"-.010" inches

Rod Bolt Tension: 50-55 Lbs. Ft.

Main Bearing Journal Diameter:

#1: 2.478"-2.489"; #2: 2.5405"-2.5415";

#3: 2.603"-2.604"; #4: 2.6655"-2.6665";

#5: 2.6855:-2.6865"

Main Bearing Clearance: .0005" -.0025"; Others .001"-.003"

Crankshaft End Play: .004"-.008"

Main Bolt Tension:

#1, 2, 3, & 4: 100 Ft Lbs; #5: 140 Ft Lbs




Valve Specifications, 8 Cylinder Models


Tappet Clearance, Running Hot: Intake .008"; Exhaust .011"

Clearance for Timing: Intake: .0125"; Exhaust: .0155"

Valve Timing: Intake Opens At Top Dead Center

Exhaust Closes 10 degrees After Top Dead Center

Valve Seat Angle: Intake 30 degrees; Exhaust 45 degrees,

Valve Spring Pressure: 55 Lbs @ 2-1/4 inches (New Springs)

Valve Stem Clearance: Intake .002"-.004"

Exhaust .0025"-.004"




Piston & Ring Data, 8 Cylinder Models


Piston Removal: From Above

Piston Clearance (Minimum):

Top Land Inch .023"

Top of Skirt, Inch: .0013"

Fitting Pistons with Spring Scale:

Shim Thickness: .0015"

Pounds Pull on Scale: 7 to 20

Width of Ring End Gap (Minimum):

Compression Ring: .009"

Oil Ring: .009"

Clearance Between Ring & Grooves:

Compression Ring: .001"-.0025"

Oil Control Ring: .001"-.0025"




Beginning Engine Numbers:

6 Cylinder Models: G-424001

8 Cylinder Models:: L-450001



Beginning Serial Numbers:

6 Cylinder, Series F: 66C-9001 California

66L-12001 Linden, New Jersey

66-86001 Lansing, Michigan

6 Cylinder, Series G: 76C-7001 California

76L-11001 Linden New Jersey

76-75001 Lansing, Michigan

8 Cylinder, Series E 68C-3001 California

68L-3001 Linden, New Jersey

68-9001 Lansing, Michigan

8 Cylinder, Series J 78C-4001 California

78L-4001 Linden, New Jersey

78-26001 Lansing, Michigan

8 Cylinder, Series L 98C-4001 California

98L-6001 Linden, New Jersey

98-25001 Lansing, Michigan



Brake Specifications, 66, 68, & 76 Models


Lining Material: Molded

Lining Dimensions/Wheel in Inches: 21-5/16"

Width: Front, 2"; Rear, 1-3/4",

Thickness: 3/16"

Pedal Free Play: 3/16" *

* Adjust Pedal so Rubber Pad Under the Toe Board is Compressed to the Dimension Indicated.



Brake Specifications, 78 & 98 Models


Lining Material: Molded

Lining Dimensions/Wheel in Inches: 21-5/16"

Width: Front, 2-1/4"; Rear, 2",

Thickness: 3/16"

Pedal Free Play: 3/16" *

* Adjust Pedal so Rubber Pad Under the Toe Board is Compressed to the Dimension Indicated.






Wheel Alignment Specifications, 6 & 8 Cylinder Models


Caster: - 3/8 Degrees

Camber: +1/4 Degrees

Toe In: 3/32"

Kingpin Angle: 4-5/6 Degrees




Rear Axle , 6 & 8 Cylinder Models


Ring Gear & Pinion Backlash: .004"-.008"

Drive Pinion Adjustment: Shims

Drive Pinion Bearing Adjustment: None

Axle Shaft End Play: .000"-.008"



Delco-Remy Distributor Specifications - 6 Cylinder Models

Distributor #1110213

Cam Angle: 35 Degrees

Breaker Point Opening: .020"

Condenser Capacity: .20-.25 Mfds.

Breaker Arm Spring Tension: 17-21 Ounces

Centrifugal Advance Data:

Advance Starts: 1-1/2 Degrees @ 250 RPM

Full Advance: 12 Degrees @ 1,600 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 7-1/2" to 9-1/2"

Inches of Vacuum for Full Plunger Travel: 14-1/2" to 16-1/2"

Maximum Vacuum Advance: 6 Degrees


Delco-Remy Distributor Specifications - 8 Cylinder Models

Distributor #1110808

Cam Angle: 25 Degrees

Breaker Point Opening: .015"

Condenser Capacity: .20 -.25 Mfds.

Breaker Arm Spring Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 1-1/2 Degrees @ 250 RPM

Full Advance: 12 Degrees @ 1,600 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 6-1/2" to 8-1/2"

Inches of Vacuum for Full Plunger Travel: 14" to 16"

Maximum Vacuum Advance: 6 Degrees



Delco-Remy Generator Specifications


Generator #1102664

Brush Spring Tension: 25 Ounces

Direction of Rotation: Clockwise

Field Current @ 6 Volts: 1.75-1.9 Amperes

Maximum Cold Output:

30 Amperes, 8.0 Volts @ 1,7500 RPM

Maximum Hot Output: Controled by Current Regulator


Generator #1102680

Brush Spring Tension: 25 Ounces

Direction of Rotation: Clockwise

Field Current @ 6 Volts: 1.75-1.9 Amperes

Maximum Cold Output:

30 Amperes, 8.0 Volts @ 1,7500 RPM

Maximum Hot Output: Controled by Current Regulator



Delco-Remy Regulator Specifications


Regulator Type: Voltage & Current

Part #1118201

Ground Polarity: Negative

Voltage to Close Relay Points: 6.2-6.7 Volts

Amperage to Open Relay Points: 0-4.0 Amperes

Maximum Operating Amperage: 34-36 Amperes

Maximum Operating Voltage: 7.2-7.4 Volts



Delco-Remy Starting Motor Specifications - 6 Cylinder Models


Part #1107050

Brush Spring Tension: 24-28 Ounces

No Load Test: 65 Amperes, 5.0 Volts, @ 5,000 RPM

Lock Test: 525 Amperes, 3.37 Volts, 12 Ft. Lbs. of Torque.



Delco-Remy Starting Motor Specifications - 8 Cylinder Models


Part #11007930

Brush Spring Tension: 24-28 Ounces

No Load Test: 65 Amperes, 5.0 Volts, @ 5,500 RPM

Lock Test: 600 Amperes, 3.0 Volts, 15 Ft. Lbs. of Torque.



Carter Carburetor Specifications, 6 Cylinder


Carburetor Model: WA1

Part #481S

Casting # 340

Repair Kit # 1097A

Float Level: 1/2"

Idle Screw Setting: 1/2 to 1-1/2 Turns

Metering Rod Gauge: T-109-102

Pump Travel: 16/64" (Medium Stroke)

Anti-Percolator Setting: With throttle valve open .020", there should be .005" to .015" clearance between rocker arm & pump arm

Unloader Setting: 3/8"

Fast Idle Setting: 5/8"

Choke Lockout Adjustment: 1/32"



Carter Carburetor Specifications, 6 Cylinder


Carburetor Model: WA1

Part #504S

Casting # 340

Repair Kit # 1097A

Float Level: 1/2"

Idle Screw Setting: 1/2 to 1-1/2 Turns

Metering Rod Gauge: T-109-102

Pump Travel: 16/64" (Medium Stroke)

Anti-Percolator Setting: With throttle valve open .020", there should be .005" to .015" clearance between rocker arm & pump arm

Unloader Setting: 7/16"

Fast Idle Setting: 5/8"

Choke Lockout Adjustment: 1/32"




Carter Carburetor Specifications, 6 Cylinder


Carburetor Model: W1

Part #523S

Casting # 462

Repair Kit # 1353A

Float Level: 9/16"

Idle Screw Setting: 1/2 to 1-1/2 Turns

Metering Rod Gauge: T-109-25

Pump Travel: 15/64" (Medium Stroke)

Anti-Percolator Setting: With throttle valve open .030", there should be .005" to .015" clearance between rocker arm & pump arm

Unloader Setting: 7/16"

Fast Idle Setting: 5/8"

Choke Lockout Adjustment: 1/32"




Carter Carburetor Specifications, 8 Cylinder


Carburetor Model: WD0

Part #480S-SA

Casting # 342

Repair Kit # 1096A

Float Level: 3/16"

Idle Screw Setting: 1/2 to 1-1/2 Turns

Metering Rod Gauge: T-109-113

Pump Travel: 19/64"

Anti-Percolator Setting: With throttle valve closed, indicator lines should be flush with top of anti-percolator plugs.

Unloader Setting: 3/16"

Fast Idle Setting: .015"

Choke Lockout Adjustment: None



Carter Carburetor Specifications, 8 Cylinder


Carburetor Model: WD0

Part #503S-SA

Casting # 342

Repair Kit # 1096A

Float Level: 3/8"

Idle Screw Setting: 1/2 to 1-1/2 Turns

Metering Rod Gauge: T-109-113

Pump Travel: 19/64"

Anti-Percolator Setting: With throttle valve closed, indicator lines should be flush with top of anti-percolator plugs.

Unloader Setting: 1/4"

Fast Idle Setting: .015"

Choke Lockout Adjustment: None



Fuel Pump Data:

Pump Model: AH

Maximum Pressure: 3-3/4 PSI


Pump Model: AJ

Maximum Pressure: 4 PSI



Dash Gauge Manufacturer:

Gasoline: AC

Temperature: AC

Oil Pressure: AC

Ammeter: AC





Colors & Codes


40 Black

41 Slate Green Poly

42 Ambassador Red Poly

43 New Ivory

43-A Warwick Tan Poly Upper & New Ivory Lower

44 Darien Blue Poly

44-A Hurricane Blue Upper & Darien Blue Poly Lower

45 Marine Blue Poly

45-A Swift Blue Poly Upper & Marine Blue Poly Lower

46 Warwick Tan

46-A Granada Brown Upper & Warwick Tan Poly Lower

46-B Warwick Tan Poly Upper & Granada Brown Lower

47 Eagle Gray

47-A Condor Gray Upper & Eagle Gray Lower

48 Condor Gray

48-A Black Upper & Condor Gray Lower

49 Forest Green Poly

49-A Sea Foam Green Poly Upper & Forest Green Poly Lower

49-B Forest Green Poly Upper & Sea Foam Green Poly Lower

49-C Sea Foam Green Poly

52 Garnet Red Poly




Popular Options


Fender Skirts, Bumper Guards, Master Radio, Standard Radio,Universal Radio, Contitioned Air Heater, Dual Flow Heater, Underseat Heater, Wind up Clock, Electric Clock, Cigar Lighter, Glove Compartment Light, Plastic Steering Wheel, Vanity Visor Mirror, Wheel Trim Rings, Turn Signals, Fog Lamps, Backup Lamps, License Plate Frames, Exhaust Deflector, Seat Covers, Underhood Light, Visor Utility Kit, Gas Tank Cover Lock, Hydra-Matic Automatic Transmission, Oil Filter, Heavy Duty Air Cleaner, Solenoid Starter.



1942 Oldsmobile Historical Data


Total 1942 Oldsmobile Production was 67,999.

1942 Oldsmobile Production ended February 5, 1942.



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