1980 CHECKER

General Specifications:

Chasis:

Marathon:

Wheelbase: 120"

Overall Length: 204.8"

Tire Size: 215/75R15

Marathon DeLuxe

Wheelbase: 129"

Overall Length: 213.8"

Tire Size: 225/75R15

Rear Axle Ratio:

Standard Ratio 2.72:1

Body Data:

Checker Marathon Series:

6 Cylinder:

Model A12; 4 Door Sedan, 6 Passenger, Body #A12

Base Price: $8,118; Shipping Weight: 3,680 Pounds;

8 Cylinder:

Model A12; 4 Door Sedan, 6 Passenger, Body #A12

Base Price: N/A; Shipping Weight: N/A Pounds;

Model A12; 4 Door DeLuxe Sedan, 6 Passenger, Body #A12E

Base Price: $9,192; Shipping Weight: 3,999 Pounds;

Note: Taxi Models are A-11 & A-11E, respectively.

Engine Specifications:

6 Cylinder Engine, 229 Cu. In. 2 Barrel Carburetor, 115 HP:

Engine Type: V-Type, 6 Cylinder, Overhead Valve

Bore & Stroke: 3.736" X 3.48"

Engine Displacement: 229 Cu. In.

Compresssion Ratio: 8.6 to 1

Taxable Horsepower: 33.5

Horsepower: 115 @ 4,000 RPM

Torque: 175 Ft. Lbs. @ 2,000 RPM

Normal Oil Pressure: 45 Lbs/Sq. In

2 Barrel Carburetor

8 Cylinder Engine-267 Cu. In., 120 HP:

Bore & Stroke: 3.50" X 3.48"

Engine Displacement: 305 Cu. In.

Compression Ratio: 8.30:1

Taxable Horsepower: 39.2

Horsepower: 120 @ 3,600 RPM

Torque: 215 Ft. Lbs @ 2,000 RPM

Normal Oil Pressure: 45 Lbs/Sq. In.

2 Barrel Carburetor

8 Cylinder Engine-305 Cu. In., 155 HP:

Bore & Stroke: 3.736" X 3.48"

Engine Displacement: 305 Cu. In.

Compression Ratio: 8.60:1

Taxable Horsepower: 44.66

Horsepower: 155 @ 4,000 RPM

Torque: 240 Ft. Lbs @ 1,600 RPM

Normal Oil Pressure: 45 Lbs/Sq. In.

2 Barrel Carburetor

8 Cylinder Engine-350 Cu. In., 105 HP (Diesel):

Bore & Stroke: 4.057" X 3.385"

Engine Displacement: 350 Cu. In.

Compression Ratio: 22.5:1

Taxable Horsepower: 52.67

Horsepower: 105 @ 3,200 RPM

Torque: 205 Ft. Lbs @ 1,600 RPM

Normal Oil Pressure: 30- 45 Lbs/Sq. In.

Fuel Injected

Tune-Up Specifications:

6 Cylinder Engine:

Spark Plug Type: AC R45TS

Spark Plug Gap: .045"

Ignition Timing: 12 Degrees BTDC

Engine Idle Speed:

Automatic Transmission: 600 RPM in Drive: 675 RPM in Drive w/throttle solenoid energized.

Fast Idle Speed: 1,750 RPM

Fuel Pump Pressure: 4-1/2 to 6 PSI

8 Cylinder Engine, 267 Cu. In.:

Spark Plug Type: AC R46TS

Spark Plug Gap: .035"

Ignition Timing: 6 Degrees BTDC

Engine Idle Speed:

Automatic Transmission: 500 RPM in Drive (600 RPM with idle solenoid energized)

Fast Idle Speed: 1,850 RPM

Fuel Pump Pressure: 7-1/2 to 9 PSI

8 Cylinder Engine, 305 Cu. In.:

Spark Plug Type: AC R45TS

Spark Plug Gap: .045"

Ignition Timing: 4 Degrees BTDC

Engine Idle Speed:

Automatic Transmission: 500 RPM in Drive (600 RPM with idle solenoid energized)

Fast Idle Speed: 1,850 RPM

Fuel Pump Pressure: 7-1/2 to 9 PSI

8 Cylinder Engine, 350 Cu. In.:

Ignition Timing: 7 Degrees BTDC; Fuel Injected Timing to 800 RPM

Engine Idle Speed:

Automatic Transmission: 600 RPM in Drive (750 RPM w/idle solenoid energized)

Distributor Specifications:

Not Available. Use distributor number and refer to 1980 Chevrolet data for information.

Valve Specifications:

6 Cylinder Engines:

Valve Lash: Hydralic Lifters-1 Turn Down From Zero Lash

Valve Angles:

Seat: 46 Degrees

Face: 45 Degrees

Valve Spring Height, Installed: 1-23/32"

Valve Spring Pressure: 200 Lbs. @ 1.25"

Valve Stem Clearance:

Intake: .0010" to .0027"

Exhaust: .0010" to .0027"

Valve Stem Diameter:

Intake: .3410" to .3417"

Exhaust: .3410" to .3417"

8 Cylinder Engines:

Valve Lash: Hydralic Lifters-1 Turn Down From Zero Lash

Valve Angles:

Seat: 46 Degrees

Face: 45 Degrees

Valve Spring Height, Installed: 1-23/32"

Valve Spring Pressure: 200 Lbs. @ 1.25"

Valve Stem Clearance:

Intake: .001" to .0027"

Exhaust: .001" to .0027"

Valve Stem Diameter:

Intake: .3410" to .3417"

Exhaust: .3410" to .3417"

8 Cylinder Diesel Engines:

Valve Lash: Hydralic Lifters-No Adjustment

Valve Angles:

Seat:

Intake: 45 Degrees

Exhaust: 31 Degrees

Face:

Intake: 44 Degrees

Exhaust: 30 Degrees

Valve Spring Height, Installed: 1.67"

Valve Spring Pressure: 151 Lbs. @ 1.30"

Valve Stem Clearance:

Intake: .001" to .0027"

Exhaust: .0015" to .0032"

Valve Stem Diameter:

Intake: .3425" to .3432"

Exhaust: .3420" to .3427"

Pistons, Pins, Rings, Crankshaft, & Bearing Specifications:

6 Cylinder Engine:

Piston Clearance: .0007" to .0017"

Ring End Gap:

Compression: .010"

Oil: .015"

Wrist Pin Diameter: .9272"

Rod Bearings

Shaft Diameter: 2.0986" to 2.0998"

Bearing Clearance: .0013" to .0035"

Main Bearings:

Shaft Diameter:

Front: 2.4484" to 2.4493"

Intermediate: 2.4481"-2.4490"

Rear: 2.4479"-2.4488"

Bearing Clearance:

Front: .0008"-.0020"

Intermediate: 2.4481"-2.4488"

Rear: .0017"-.0032"

Thrust on Bearing #4

Shaft End Play: .002" to .006"

8 Cylinder Engine, 267 Cu. In.:

Piston Clearance: .0007" to .0017"

Ring End Gap:

Compression: .010"

Oil: .015"

Wrist Pin Diameter: .9272"

Rod Bearings

Shaft Diameter: 2.0986" to 2.0998"

Bearing Clearance: .0013" to .0035"

Main Bearings:

Shaft Diameter:

Front: 2.4484" to 2.4493"

Intermediate: 2.4481"-2.4490"

Rear: 2.4479"-2.4488"

Bearing Clearance:

Front: .0008"-.0020"

Intermediate: 2.4481"-2.4488"

Rear: .0017"-.0032"

Thrust on Bearing #5

Shaft End Play: .002" to .006"

8 Cylinder Engine, 305 Cu. In.:

Piston Clearance: .0007" to .0017"

Ring End Gap:

Compression: .010"

Oil: .015"

Wrist Pin Diameter: .9272"

Rod Bearings

Shaft Diameter: 2.0986" to 2.0988"

Bearing Clearance: .0013" to .0035"

Main Bearings:

Shaft Diameter:

#1: 2.4484" to 2.4493"

#2, 3, 4: 2.4481" to 2.4490"

#5: 2.4475" to 2.4488"

Bearing Clearance:

#1: .0008" to .0020"

#2, 3, 4: .0011" to .0023"

#5: .0017" to .0033"

Thrust on Bearing #5

Shaft End Play: .002" to .006"

8 Cylinder Diesel Engine, 350 Cu. In.:

Piston Clearance: .0050" to .0060"

Ring End Gap:

Compression: .020"

Oil: .035"

Wrist Pin Diameter: 1.0951"

Rod Bearings

Shaft Diameter: 2.1238" to 2.1248"

Bearing Clearance: .0005" to .0026"

Main Bearings:

Shaft Diameter: 2.9993"-3.0003"

Bearing Clearance:

#1, 2, 3, 4: .0005" to .0021"

#5: .0015" to .0031"

Thrust on Bearing #3

Shaft End Play: .0035" to .0135"

Engine Tightening Specifications:

6 Cylinder Engine:

Spark Plugs: 22 Ft. Lbs

Cylinder Heat Bolts: 65 Ft. Lbs.

Intake Manifold: 30 Ft. Lbs.

Exhaust Manifold: 20 Ft. Lbs.

Rocker Arm Cover: 45 Inch Lbs.

Connecting Rod Cap Bolts: 45 Ft. Lbs.

Main Bearing Cap Bolts: 70 Ft. Lbs.

Flywheel to Crankshaft: 60 Ft. Lbs.

Vibration Damper or Pulley: 60 Ft. Lbs.

8 Cylinder, 267 Cubic Inch Engine:

Spark Plugs: 22 Ft. Lbs

Cylinder Heat Bolts: 65 Ft. Lbs.

Intake Manifold: 30 Ft. Lbs.

Exhaust Manifold: 20 Ft. Lbs.

Rocker Arm Cover: 45 Inch Lbs.

Connecting Rod Cap Bolts: 45 Ft. Lbs.

Main Bearing Cap Bolts: 70 Ft. Lbs.

Flywheel to Crankshaft: 60 Ft. Lbs.

Vibration Damper or Pulley: 60 Ft. Lbs.

8 Cylinder Engine, 305 Cu. In.:

Spark Plugs: 22 Ft. Lbs

Cylinder Heat Bolts: 65 Ft. Lbs.

Intake Manifold: 30 Ft. Lbs.

Exhaust Manifold:: 20 Ft. Lbs.

Rocker Arm Cover: 45 Inch Lbs.

Connecting Rod Cap Bolts: 45 Ft. Lbs.

Main Bearing Cap Bolts: 70 Ft. Lbs.

Flywheel to Crankshaft: 60 Ft. Lbs.

Vibration Damper or Pulley: 60 Ft. Lbs.

8 Cylinder Diesel Engine, 350 Cu. In.:

Cylinder Heat Bolts: 130 Ft. Lbs.

Intake Manifold: 40 Ft. Lbs.

Exhaust Manifold: 25 Ft. Lbs.

Rocker Arm Pivot Bolt: 28 Ft. Lbs.

Connecting Rod Cap Bolts: 42 Ft. Lbs.

Main Bearing Cap Bolts: 120 Ft. Lbs.

Flywheel to Crankshaft: 60 Ft. Lbs.

Vibration Damper or Pulley: 200-310 Ft. Lbs.

Alternator Specifications:

Not Available. Use alternator number and refer to 1980 Chevrolet data for information.

Starting Motor Specifications:

6 Cylinder Engine:

Starter #1109524

Free Speed Test: 50-08 Amperes, 10.6 Volts @ 7,500-11,400 RPM

8 Cylinder Engine, 267 Cu. In.:

Starter #1109524

Free Speed Test: 50-80 Amperes, 10.6 Volts @ 7,500-11,400 RPM

8 Cylinder Engine, 305 Cu. In.:

Starter #1109524

Free Speed Test: 50-80 Amperes, 10.6 Volts @ 7,500-11,400 RPM

8 Cylinder Diesel Engine, 350 Cu. In.:

Starter #1109213

Free Speed Test: 40-140 Amperes, 9 Volts @ 8,000-13,000 RPM

Rear Axle Specifications:

Information Not Available.

Brake Specifications:

Information Not Available.

Capacities:

Fuel Tank: 21.6 Gallons

No other information is available.

Wheel Alignment:

Information is not available.

Rochester Carburetor Specifications:

2 Barrel, 6 Cylinder Engine:

Carburetor #: 17080130

No Further Information Available

2 Barrel, 267 Cubic Inch V-8:

Carburetor #17080138

No Further Information Available

2 Barrel, 305 Cubic Inch V-8:

No Information Available

1980 CHECKER

Popular Options:

267 Cubic Inch V-8 Engine, 305 Cubic Inch V-8 Engine, 350 Cubic Inch Diesel V-8 Engine, Trac-Lok Rear Axle, 105 Ampere Alternator, Ausiliary Transmission Cooler, Front Air Conditioning, Dual Air Conditioning, Rear Defogger, 4 Door Electric Door Locks, Rear Door Only Electric Door Locks, Tinted Glass, Right Outside Mirror, Left Hand Spotlight, Auxiliary Floor Heater, Rear Helper Springs, Heavy Duty Springs, AM Radio, AM/FM Radio, Rear Seat Speaker, Vinyl Roof, Two-Tone Paint, Quarter Window Elimination, Chrome Fender Shields, Auxiliary Rear Seats, Front Carpeting, Additional Ash Trays, Whitewall Tires.

1980 Checker Historical Data:

Automatic Transmission, Power Disc Brakes, Power Steering, and Left Outside Mirror were Standard Equipment;

1980 Checker Model Year introduction date is not available.

Model Year Production:

250 Private Passenger Cars

2,324 Taxi Cabs

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