1977 CHEVROLET CHEVETTE



Model Designations:

Chevrolet Chevette, Series 1T, 4 Cylinder

Chevrolet Chevette Scooter, Series 1T, 4 Cylinder


Chevrolet Chevette, 4 Cylinder, Body Styles:


2 Door Hatchback, 4 Passenger, Body #B08

Base Price: $3,225; Shipping Weight: 1,958 Pounds

Production Total: 120,278



Chevrolet Chevette Scooter, 4 Cylinder, Body Styles:


2 Door Hatchback, 4 Passenger, Body #J08

Base Price: $2,999; Shipping Weight: 1,898 Pounds

Production Total: 13,191




General Specifications:


Wheelbase:

All Styles: 94.3"


Overall Length: 157.8"



Tire Sizes:

All Styles: 155/80 X 13"




Engine Specifications, 85 Cu. In., 4 Cylinder, 52 HP:


Engine Type: In-Line 4 Cylinder, Overhead Cam

Bore & Stroke: 3.228" X 2.606"

Engine Displacement: 85 Cu. In.

Compresssion Ratio: 8.50 to 1

Taxable Horsepower: 16.67

Horsepower: 52 @ 5,300 RPM

Torque: 67 Ft. Lbs. @ 3,400 RPM

Normal Oil Pressure: 36-46 PSI

Carburetor: 1 Barrel



Engine Specifications, 85 Cu. In., 4 Cylinder, 60 HP:


Engine Type: In-Line 4 Cylinder, Overhead Cam

Bore & Stroke: 3.228" X 2.980"

Engine Displacement: 97.6 Cu. In.

Compresssion Ratio: 8.50 to 1

Taxable Horsepower: 16.67

Horsepower: 60 @ 5,300 RPM

Torque: 77 Ft. Lbs. @ 3,200 RPM

Normal Oil Pressure: 36-46 PSI

Carburetor: 1 Barrel




Capacities:


4 Cylinder, 140 Cu. In. Engine:

Cooling System:

With Heater: 8-1/2 Quarts

With Air Conditioning: 9 Quarts

Radiator Cap Pressure:

With Air Conditioning: 15 PSI

Without Air Conditioning: 15 PSI

Thrermostat Opening: 190 Degrees

Fuel Tank: 13 Gallons

Engine Oil Refill: 4 Quarts, with Filter

Transmission Oil:

4 Speed: 3 Pints

Automatic Transmission:

Total Capacity: 6.5 Quarts

Drain & Refill: 3 Quarts

Rear Axle: 2 Pints



Tune Up Specifications, 4 Cylinder, 85 Cu. In. Engine, Except California:


Spark Plug Type: AC R43TS

Spark Plug: Gap .035"

Firing Order: 1-3-4-2

Ignition Timing:

Standard Transmission: 12 Degrees BTDC on Damper

Automatic Transmission: 12 Degrees BTDC on Dampr

Engine Idle Speed:

Standard Transmission: 600 RPM; 800 RPM w/AC Solenoid Energized

Automatic Transmission: 600 RPM, in Drive, 800 RPM w/AC Solenoid Energized

Fast Idle Speed:

Standard Transmission: 2,300 RPM on high step of fast idle cam with A/C "Off"

Automatic Transmission: 2,400 RPM on high step of fast idle cam with A/C "Off"

Fuel Pump Pressure: 5 to 6-1/2 PSI





Tune Up Specifications, 4 Cylinder, 97.6 Cu. In. Engine, Except California & High Altitude:


Spark Plug Type: AC R43TS

Spark Plug: Gap .035"

Firing Order: 1-3-4-2

Ignition Timing:

Standard Transmission: 8 Degrees BTDC on Damper

Automatic Transmission: 8 Degrees BTDC on Dampr

Engine Idle Speed:

Standard Transmission: 600 RPM; 800 RPM w/AC Solenoid Energized

Automatic Transmission:

Without Air Conditioning: 600 RPM, in Drive, 800 RPM w/AC Solenoid Energized

With Air Conditioning: 800 RPM, in Drive, 950 RPM w/AC Solenoid Energized

Fast Idle Speed:

Standard Transmission: 2,300 RPM on high step of fast idle cam with A/C "Off"

Automatic Transmission: 2,400 RPM on high step of fast idle cam with A/C "Off"

Fuel Pump Pressure: 5 to 6-1/2 PSI





Tune Up Specifications, 4 Cylinder, 97.6 Cu. In. Engine, California & High Altitude:


Spark Plug Type: AC R43TS

Spark Plug: Gap .035"

Firing Order: 1-3-4-2

Ignition Timing:

Standard Transmission: 8 Degrees BTDC on Damper

Automatic Transmission: 8 Degrees BTDC on Dampr

Engine Idle Speed:

Standard Transmission: 800 RPM

Automatic Transmission: 800 RPM, in Drive, 950 RPM w/AC Solenoid Energized

Fast Idle Speed:

Automatic Transmission: 2,000 RPM on high step of fast idle cam with A/C "Off"

Fuel Pump Pressure: 5 to 6-1/2 PSI



Valve Specifications, 4 Cylinder, Both Engines:


Valve Lash (Cold): Hydralic Lifters

Valve Angles:

Seat: 46 Degrees

Face: 45 Degrees

Valve Spring Height: 1.26"

Valve Spring Pressure: 173 Lbs @ .886 inches

Valve Stem Clearance:

Intake .0006"-.0017"

Exhaust .0014"-.0025"

Valve Stem Diameter:

Intake: .3138"-.3144"

Exhaust: .3130"-.3136"




Pistons, Pins, Rings, Crankshaft & Bearings Data, 4 Cylinder, Both Engines:

Piston Clearance: .0008"-.0016"

Piston Rings:

Ring End Gap:

Compression: .009"

Oil: .015"

Wrist Pin Diameter: .9052"

Rod Bearings:

Shaft Diameter: 1.8093"-1.8103"

Rod Bearing Clearance: .0014"-.0031"

Main Bearings:

Shaft Diameter: 2.0078"-2.0088"

Main Bearing Clearance:

#1, 2, 3, & 4: .0006"-.0018"

#5: .0009"-.0026"

Thrust on Bearing #5

Crankshaft End Play: .004"-.008"






Engine Tightening Specifications:


Spark Plugs: 15 Ft. Lbs.

Cylinder Head Bolts: 75 Ft. Lbs.

Intake Manifold: 16 Ft. Lbs.

Exhaust Manifold:

Center Bolts: 15 Ft. Lbs.

End Legs: 22 Ft. Lbs.

Camshaft Sprocket Bolt: 75 Ft. Lbs.

Cam Cover: 14 Inch Lbs.

Connecting Rod Cap Bolts: 37 Ft. Lbs.

Main Bearing Cap Bolts: 46 Ft. Lbs.

Flywheel to Crankshaft: 46 Ft. Lbs.

Vibration Damper or Pulley: Pulley to Damper Screws: 75 Ft. Lbs.




Rear Axle Specifications:


Carrier Type: Integral

Ring Gear & Pinion Backlash:

Method: Shims

Pinion Bearing Preload:

Method: Spacer

New Bearings: 15-25 Inch Lbs.

Used Bearings: 5-10 Inch Lbs.

Differential Bearing Preload:

Method: Shims




Brake Specifications:


Brake Drum Diameter: 7.899"

Wheel Cylinder Bore:

Front Disc Brakes: 1-7/8"

Rear: 3/4"

Master Cylinder Bore:

Disc Brakes: 3/4"

Power Brakes: 3/4"





Wheel Alignment Specifications:


Caster: +4-1/2 Degree

Camber:

Left: +2 Degrees

Right: +2 Degrees

Toe In: 1/64"-7/64"





Alternator Specifications:


Model: 1102845

Rated Hot Output: 32 Amperes

Field Current, 12 Volts @ 80 Degrees: 4.0 to 4.5 Amperes

Cold Output @ 14 Volts:

5,000 RPM: 31 Amperes

Regulator: Integral




Model: 1102846

Rated Hot Output: 55 Amperes

Field Current, 12 Volts @ 80 Degrees: 4.0 to 4.5 Amperes

Cold Output @ 14 Volts:

5,000 RPM: 51 Amperes

Regulator: Integral






Distributor Specifications:


#1110687

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 600 RPM

Intermediate Advance: 4 Degrees @ 1,200 RPM

Full Advance: 12 Degrees @ 2,400 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 4"

Maximum Vacuum Advance: 13 Degrees @ 12" Vacuum



#1110693

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 600 RPM

Intermediate Advance: 4 Degrees @ 1,200 RPM

Full Advance: 12 Degrees @ 2,400 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger: 4"

Maximum Advance: 17 Degrees @ 18" Vacuum



#1110702

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 600 RPM

Intermediate Advance: 4 Degrees @ 1,200 RPM

Full Advance: 12 Degrees @ 2,400 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger: 4"

Maximum Advance: 15 Degrees @ 12" Vacuum



#1110703

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 600 RPM

Intermediate Advance: 4 Degrees @ 1,200 RPM

Full Advance: 12 Degrees @ 2,850 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger: 4"

Maximum Advance: 15 Degrees @ 12" Vacuum



Starting Motor Data:


Starter # 1109414

Free Speed Test: 50-75 Amperes, 9 Volts, @ 6,500 RPM




Carburetor Data:


Note: See 1977 General Motors Carburetors Data File




Chevrolet Paint Colors & Codes:


11 Antique White

13 Silver

16 Medium Gray

19 Black

21 Light Blue

22 Light Blue Poly

29 Dark Blue

32 Light Lime

36 Firethorn

38 Dark Aqua

44 Medium Green

48 Dark Blue Green

50 Cream

51 Bright Yellow

61 Light Buckskin

63 Buckskin

64 Bright Orange

69 Brown

72 Red

75 Light Red

78 Orange

85 Medium Blue (2-Tone)




Popular Options:


AM Radio; AM-FM Radio; AM-FM Stereo Radio; Rear Speaker; Rally Equipment; Rear Defogger; Tilt Steering Wheel; Tinted Glass; Electric Clock; Cigarette Lighter; Glove Compartment; Sport Side Mirror; Twin Remote Mirrors; Day-Night Mirror; Air Conditioning; Vinyl Roof; Custom Exterior; Sport Decor; Side Window Reveal Moldings; Door Edge Guards; Deluxe Bumpers; Custom Interior; Console; Load Floor Carpet; Rear Seat Delete; Color Keyed Floor Mats; Sport Wheel Covers; Wheel Trim Rings Automatic Transmission, and more.



1977 Chevrolet Chevette Historical Data:


The 1977 Chevrolet model year introduction was September 30, 1976.

Total 1976 Chevrolet Chevette Production was 133,469.



Promotional Model Cars:


Plastic: Chevette 2 Door Sedan



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