1972 CHEVROLET VEGA

1972 CHEVROLET VEGA

Model Designations:

Chevrolet Vega 2300, Series 1V, 4 Cylinder

Chevrolet Vega, Body Styles:

2 Door Sedan, 4 Passenger, Body #11

Base Price: $2,060; Shipping Weight: 2,158 Pounds

Production Total: 55,800

2 Door Coupe, 4 Passenger, Body #77

Base Price: $2,160; Shipping Weight: 2,294 Pounds

Production Total: 262,700

2 Door Station Wagon, 4 Passenger; Body #15

Base Price: $2,285; Shipping Weight: 2,233 Pounds

Production Total; 72,000

2 Door Panel Wagon, 2 Passenger, Body #05

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

Production Total: 4,114

General Specifications:

Wheelbase:

All Styles: 97"

Tire Sizes:

All Styles: 6.00 X 13"

Engine Specifications, 140 Cu. In., 4 Cylinder, 80 HP:

Engine Type: In-Line 4 Cylinder, Overhead Cam

Bore & Stroke: 3.500" X 3.625"

Engine Displacement: 140 Cu. In.

Compresssion Ratio: 8.00 to 1

Taxable Horsepower: 19.6

Horsepower: 80 @ 4,400 RPM

Torque: 121 Ft. Lbs. @ 2,400 RPM

Normal Oil Pressure: 40 PSI

Carburetor: 1 Barrel

Engine Specifications, 140 Cu. In., 4 Cylinder, 90 HP:

Engine Type: In-Line 4 Cylinder, Overhead Cam

Bore & Stroke: 3.500" X 3.625"

Engine Displacement: 140 Cu. In.

Compresssion Ratio: 8.00 to 1

Taxable Horsepower: 19.6

Horsepower: 90 @ 4,800 RPM

Torque: 121 Ft. Lbs. @ 2,800 RPM

Normal Oil Pressure: 40 PSI

Carburetor: 2 Barrel

Capacities:

4 Cylinder, 140 Cu. In. Engine:

Cooling System:

With Heater: 6.5 Quarts

With Air Conditioning: 6.5 Quarts

Radiator Cap Pressure:

With Air Conditioning: 15 PSI

Without Air Conditioning: 15 PSI

Thrermostat Opening: 195 Degrees

Fuel Tank: 11 Gallons

Engine Oil Refill: 4 Quarts, with Filter

Transmission Oil:

3 Speed: 2.4 Pints

4 Speed: 3 Pints

Automatic Transmission:

Refill: 2 Quarts

Total Capacity: 8-1/2 Quarts

Rear Axle: 2.5 Pints

Tune Up Specifications, 4 Cylinder, 80 H.P. Engine:

Spark Plug Type: AC R42TS

Spark Plug: Gap .035"

Point Gap:

New Points: .019"

Used Points: .016"

Dwell Angle: 31-34 Degrees

Firing Order: 1-3-4-2

Ignition Timing: 6 Degrees BTDC on Pulley

Engine Idle Speed:

Standard Transmission: 850 RPM

Automatic Transmission: 700 RPM, in Drive

Tune Up Specifications, 4 Cylinder, 90 H.P. Engine:

Spark Plug Type: AC R42TS

Spark Plug: Gap .035"

Point Gap:

New Points: .019"

Used Points: .016"

Firing Order: 1-3-4-2

Ignition Timing: 8 Degrees BTDC on Pulley

Engine Idle Speed:

Standard Transmission: 1,200 RPM

Automatic Transmission: 700 RPM, in Drive

Valve Specifications, 80 Horsepower, 4 Cylinder Engine:

Valve Lash (Cold):

Intake: .015"

Exhaust: .030"

Valve Angles:

Seat: 46 Degrees

Face: 45 Degrees

Valve Spring Height: 1.746"

Valve Spring Pressure: 186 Lbs @ 1.29 inches

Valve Stem Clearance: Intake .001"-.0027"

Exhaust .001"-.0027"

Valve Stem Diameter:

Intake: .3410"-.3417"

Exhaust: .3410"-.3417"

Valve Specifications, 90 Horsepower, 4 Cylinder Engine:

Valve Lash (Cold):

Intake: .015"

Exhaust: .030"

Valve Angles:

Seat: 46 Degrees

Face: 45 Degrees

Valve Spring Height: 1.746"

Valve Spring Pressure: 190 Lbs @ 1.31 inches

Valve Stem Clearance: Intake .001"-.0027"

Exhaust .001"-.0027"

Valve Stem Diameter:

Intake: .3410"-.3417"

Exhaust: .3410"-.3417"

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

Piston Clearance: .0018"-.0028"

Piston Rings:

Ring End Gap:

Compression:

Top Ring: .015"

Lower Ring: .009"

Oil: .010"

Wrist Pin Diameter: .9272"

Rod Bearings:

Shaft Diameter: 1.999"-2.000"

Rod Bearing Clearance: .0007"-.0027"

Main Bearings:

Shaft Diameter: 2.2983"-2.2992"

Main Bearing Clearance:

#1: .0003"-.002"

Others: .0003"-.003"

Thrusk on Bearing #4

Crankshaft End Play: .002"-.007"

Engine Tightening Specifications, 140 Cu. In. Engine:

Spark Plugs: 15 Ft. Lbs.

Cylinder Head Bolts: 60 Ft. Lbs.

Intake Manifold: 30 Ft. Lbs.

Exhaust Manifold: 30 Ft. Lbs.

Cam Cover: 35 Inch Lbs.

Connecting Rod Cap Bolts: 35 Ft. Lbs.

Main Bearing Cap Bolts: 65 Ft. Lbs.

Flywheel to Crankshaft: 60 Ft. Lbs.

Vibration Damper or Pulley: Pulley to Damper Screws: 80 Ft. Lbs.

Rear Axle Specifications:

Carrier Type: Integral

Ring Gear & Pinion Backlash:

Method: Shims

Adjustment: .005"-.008"

Pinion Bearing Preload:

Method: Spacer

New Bearings: 25 Inch Lbs.

Used Bearings: 10 Inch Lbs.

Differential Bearing Preload:

Method: Shims

Brake Specifications:

Brake Drum Diameter: 9.000"

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: -3/4 Degree

Camber:

Left: +1/4 Degrees

Right: +1/4 Degrees

Toe In: 3/16"-5/16"

Alternator Specifications:

Model: 1100545

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: 1100546

Rated Hot Output: 55 Amperes

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

Cold Output @ 14 Volts:

5,000 RPM: 50 Amperes

Regulator: Integral

Model: 1100559

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: 1100560

Rated Hot Output: 55 Amperes

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

Cold Output @ 14 Volts:

5,000 RPM: 50 Amperes

Regulator: Integral

Distributor Specifications:

Distributor #1110492

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 590 RPM

Intermediate Advance: 1 Degree @ 800 RPM

Full Advance: 12 Degrees @ 2,000 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 7 Inches

Maximum Vacuum Advance: 12 Degrees @ 15" Vacuum

Distributor #1110435

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 470 RPM

Intermediate Advance: 1 Degree @ 725 RPM

Full Advance: 11 Degrees @ 2,000 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 7 Inches

Maximum Vacuum Advance: 12 Degrees @ 15" Vacuum

Starting Motor Data:

Standard Transmission:

Starter # 1108195

Free Speed Test: 50-75 Amperes, 9 Volts, @ 6,500-10,000 RPM

Torque Test: 435-535 Amperes, 3.0 Volts

Automatic Transmission:

Starter # 1108196

Free Speed Test: 50-75 Amperes, 9 Volts, @ 6,500-10,000 RPM

Torque Test: 435-535 Amperes, 3.0 Volts

Carburetor Data:

Rochester Carburetor Adjustments:

Note: Carburetors listed below include other models than the Vega.

Rochester Type M & MV:

Carburetor #: 7042014

Float Level: 1/4"

Metering Rod: .080"

Fast Idle Adjustment, off Car: .100"

Choke Rod: .125"

Vacuum Break: .190"

Unloader: .500"

Fast Idle Speed: 2,400 RPM

Rochester Type M & MV:

Carburetor #: 7042017

Float Level: 1/4"

Metering Rod: .078"

Choke Rod: .150"

Vacuum Break: .225"

Unloader: .500"

Fast Idle Speed: 2,400 RPM

Rochester Type M & MV:

Carburetor #: 7042023

Float Level: 1/8"

Fast Idle Adjustment, off Car: .110"

Choke Rod: .130"

Vacuum Break: .200"

Unloader: .350"

Fast Idle Speed: 2,400 RPM

Rochester Type M & MV:

Carburetor #: 7042024

Float Level: 1/16"

Fast Idle Adjustment, off Car: .110"

Choke Rod: .070"

Vacuum Break: .120"

Unloader: .350"

Fast Idle Speed: 2,400 RPM

Rochester Type M & MV:

Carburetor #: 7042984

Float Level: 1/4"

Metreing Rod: .078"

Choke Rod: .125"

Vacuum Break: .190"

Unloader: .500"

Fast Idle Speed: 2,400 RPM

Rochester Type M & MV:

Carburetor #: 7042987

Float Level: 1/4"

Metering Rod: .076"

Choke Rod: .150"

Vacuum Break: .225"

Unloader: .500"

Fast Idle Speed: 2,400 RPM

Rochester Type M & MV:

Carburetor #: 7042993

Float Level: 1/8"

Fast Idle Off Car: .110"

Choke Rod: .130"

Vacuum Break: .200"

Unloader: .350"

Fast Idle Speed: 2,400 RPM

Rochester Type M & MV:

Carburetor #: 7042994

Float Level: 1/16"

Fast Idle Off Car: .110"

Choke Rod: .070"

Vacuum Break: .120"

Unloader: .350"

Fast Idle Speed: 2,400 RPM

Rochester Type 2G, 2GC, & 2GV:

Carburetor #: 7042101

Float Level: 25/32"

Float Drop: 1-31/32"

Pump Rod: 1-5/16"

Vacuum Break: .080"

Choke Rod: .040"

Choke Unloader: .215"

Carburetor #: 7042101

Float Level: 25/32"

Float Drop: 1-31/32"

Pump Rod: 1-5/16"

Vacuum Break: .110"

Choke Rod: .075"

Choke Unloader: .215"

Carburetor #: 7042106

Float Level: 19/32"

Float Drop: 1-7/8"

Pump Rod: 1-1/16"

Vacuum Break: .085"

Choke Rod: .060"

Choke Unloader: .215"

Fast Idle Speed: 2,800 RPM

Carburetor #: 7042107

Float Level: 19/32"

Float Drop: 1-7/8"

Pump Rod: 1-1/16"

Vacuum Break: .100"

Choke Rod: .080"

Choke Unloader: .215"

Fast Idle Speed: 2,800 RPM

Carburetor #: 7042111

Float Level: 23/32"

Float Drop: 1-9/32"

Pump Rod: 1-1/2"

Vacuum Break: .180"

Choke Rod: .100"

Choke Unloader: .325"

Carburetor #: 70421132

Float Level: 23/32"

Float Drop: 1-9/32"

Pump Rod: 1-1/2"

Vacuum Break: .170"

Choke Rod: .100"

Choke Unloader: .325"

Carburetor #: 7042114

Float Level: 23/32"

Float Drop: 1-9/32"

Pump Rod: 1-1/2"

Vacuum Break: .170"

Choke Rod: .100"

Choke Unloader: .325"

Carburetor #: 7042118

Float Level: 23/32"

Float Drop: 1-9/32"

Pump Rod: 1-1/2"

Vacuum Break: .190"

Choke Rod: .100"

Choke Unloader: .325"

Carburetor #: 7042122

Float Level: 19/32"

Float Drop: 1-7/8"

Pump Rod: 1-1/16"

Vacuum Break: .085"

Choke Rod: .060"

Choke Unloader: .215"

Carburetor #: 7042125

Float Level: 19/32"

Float Drop: 1-7/8"

Pump Rod: 1-1/16"

Vacuum Break: .100"

Choke Rod: .080"

Choke Unloader: .215"

Carburetor #: 7042820

Float Level: 25/32"

Float Drop: 1-31/32"

Pump Rod: 1-5/16"

Vacuum Break: .080"

Choke Rod: .040"

Choke Unloader: .215"

Carburetor #: 7042821

Float Level: 25/32"

Float Drop: 1-31/32"

Pump Rod: 1-5/16"

Vacuum Break: .110"

Choke Rod: .075"

Choke Unloader: .215"

Carburetor #: 7042826

Float Level: 19/32"

Float Drop: 1-7/8"

Pump Rod: 1-1/16"

Vacuum Break: .085"

Choke Rod: .060"

Choke Unloader: .215"

Fast Idle Speed: 2,800 RPM

Carburetor #: 7042827

Float Level: 19/32"

Float Drop: 1-7/8"

Pump Rod: 1-1/16"

Vacuum Break: .100"

Choke Rod: .080"

Choke Unloader: .215"

Fast Idle Speed: 2,400 RPM

Carburetor #: 7042831

Float Level: 23/32"

Float Drop: 1-9/32"

Pump Rod: 1-1/2"

Vacuum Break: .180"

Choke Rod: .100"

Choke Unloader: .325"

Carburetor #: 70428312

Float Level: 23/32"

Float Drop: 1-9/32"

Pump Rod: 1-1/2"

Vacuum Break: .170"

Choke Rod: .100"

Choke Unloader: .325"

Carburetor #: 7042833

Float Level: 23/32"

Float Drop: 1-9/32"

Pump Rod: 1-1/2"

Vacuum Break: .180"

Choke Rod: .100"

Choke Unloader: .325"

Carburetor #: 70428314Float Level: 23/32"

Float Drop: 1-9/32"

Pump Rod: 1-1/2"

Vacuum Break: .170"

Choke Rod: .100"

Choke Unloader: .325"

Carburetor #: 7042836

Float Level: 23/32"

Float Drop: 1-7/8"

Pump Rod: 1-1/16"

Vacuum Break: .085"

Choke Rod: .060"

Choke Unloader: .321"

Carburetor #: 7042838

Float Level: 23/32"

Float Drop: 1-9/32"

Pump Rod: 1-1/2"

Vacuum Break: .120"

Choke Rod: .100"

Choke Unloader: .325"

Carburetor #: 7042839

Float Level: 19/32"

Float Drop: 1-7/8"

Pump Rod: 1-1/16"

Vacuum Break: .100"

Choke Rod: .080"

Choke Unloader: .215"

Chevrolet Paint Colors & Codes:

Code Color Name

10 Antique White

14 Nevada Silver

16 Pewter Silver

18 Dusk Gray

19 Texedo Black

24 Ascot Blue

25 Mediterranean Blue

26 Mulsanne Blue

28 Fathom Blue

36 Spring Green

43 Gulf Green

46 Oasis Green

48 Sequoia Green

50 Covert Tan

53 Placer Gold

54 Desert Gold

56 Cream Yellow

57 Golden Brown

58 Turin Tan

62 Driftwood

63 Mohave Gold

65 Orange Flame

68 Midnight Bronze

69 Aegean Brown

924 Pewter Silver

Popular Options:

Power Steering; Air Conditioning; Automatic Transmission; AM Radio; GT Package, and more.

1972 Chevrolet Vega Historical Data:

The 1972 Chevrolet model year introduction was on September 23, 1971.

Total 1972 Chevrolet Vega Production was 394,614.

Promotional Model Cars:

Plastic: Vega Hatchback.