1973 MERCURY COMET
Model Designations:
Mercury Comet, 6 & 8 Cylinder
Mercury Comet, 6 & 8 Cylinder, Body Styles:
2 Door Sedan, 6 Passenger, Body # 31
Factory Price: $2,432; Shipping Weight: 2,813 Pounds
Production Total: 55,707*
4 Door Sedan, 6 Passenger, Body # 30
Factory Price: $2,489; Shipping Weight: 2,904 Pounds
Production Total: 28,984*
* 6 & 8 Cylinder Production is combined.
Chassis:
Wheelbase:
2 Doors: 103"
4 Doors: 109.9"
Tire Sizes: 6:45 X 14"
Engine Availability by Model:
I-6 200 Cubic Inches 84 H.P. Standard Engine
I-6 250 Cubic Inches 88 H.P. Optional Engine
V-8 302 Cubic Inches 137 H.P. Optional Engine
V-8 302 Cubic Inches 138 H.P. Optional Engine
General Engine Specifications:
6 Cylinder, 200 Cubic Inch, 84 H.P. Engine:
Engine Type: Overhead Valve, Inline 6
Bore & Stroke: 3.68" x 3.13"
Engine Displacement: 200 Cu. In.
Compression Ratio: 8.30:1
Taxable Horsepower: 32.50
Horsepower: 84 @ 3,600 RPM
Torque: 151 Ft. Lbs @ 1,800 RPM
Normal Oil Pressure: 30-50 PSI
Carburetor: 1 Barrel
6 Cylinder, 250 Cubic Inch, 88 H.P. Engine:
Engine Type: Overhead Valve, Inline 6
Bore & Stroke: 3.68" x 3.91"
Engine Displacement: 250 Cu. In.
Compression Ratio: 8.0:1
Taxable Horsepower: 32.50
Horsepower: 88 @ 3,200 RPM
Torque: 196 Ft. Lbs @ 1,600 RPM
Normal Oil Pressure: 35-60 PSI
Carburetor: 1 Barrel
8 Cylinder, 137 H.P. 302 Cubic Inch Engine:
Engine Type: Overhead Valve, V-8
Bore & Stroke: 4.00" x 3.00"
Engine Displacement: 302 Cu. In.
Compression Ratio: 8.00:1
Taxable Horsepower: 51.20
Horsepower: 137 @ 4,200 RPM
Torque: 230 Ft. Lbs @ 2,200 RPM
Normal Oil Pressure: 35-60 PSI
Carburetor: 2 Barrel
8 Cylinder, 138 H.P. 302 Cubic Inch Engine:
Engine Type: Overhead Valve, V-8
Bore & Stroke: 4.00" x 3.00"
Engine Displacement: 302 Cu. In.
Compression Ratio: 8.00:1
Taxable Horsepower: 51.20
Horsepower: 138 @ 4,200 RPM
Torque: 234 Ft. Lbs @ 2,200 RPM
Normal Oil Pressure: 35-60 PSI
Carburetor: 2 Barrel
Tune Up Specifications - All Series:
6 Cylinder 200 Cubic Inch Engine:
Spark Plug Type: Autolite BRF-82
Spark Plug: Gap .034"
Point Gap: .027"
Distributor Cam Angle: 35-39 Degrees
Firing Order: 1-5-3-6-2-4
Ignition Timing: 6 Degrees BTDC
Engine Idle Speed:
Standard Transmission: 800 RPM
Automatic Transmission: 650 RPM in Drive
6 Cylinder 250 Cubic Inch Engine:
Spark Plug Type: Autolite BRF-82
Spark Plug: Gap .034"
Point Gap: .025"
Distributor Cam Angle: 33-39 Degrees
Firing Order: 1-5-3-6-2-4
Ignition Timing: 6 Degrees BTDC
Engine Idle Speed:
Standard Transmission: 750 RPM
Automatic Transmission: 600 RPM in Drive
Idle CO:
Standard Transmission: 0.5%
Automatic Transmission: 0.5%
8 Cylinder 302 Cubic Inch Engine:
Spark Plug Type: Autolite BRF-42
Spark Plug: Gap .034"
Point Gap: .017"
Distributor Cam Angle: 24-30 Degrees
Firing Order: 1-5-4-2-6-3-7-8
Ignition Timing: 6 Degrees BTDC
Engine Idle Speed:
Standard Transmission: 800 RPM
Automatic Transmission: 650 RPM in Drive
Idle CO:
49 State Cars: 0.5%
California Cars: 0.2%
Valve Specifications:
6 Cylinder Engines, 200 Cubic Inch:
Valve Lash:
Intake: .079"-.129"
Exhaust: .079"-.129"
Valve Angles:
Seat: 45 Degrees
Face: 45 Degrees
Valve Spring Height, Installed: 1-19/32"
Valve Spring Pressure: 150 Lbs @ 1.22"
Valve Stem Clearance:
Intake .0008"-.0025"
Exhaust .001"-.0027"
Valve Stem Diameter:
Intake: .3100"-.3107"
Exhaust: .3098"-.3105"
6 Cylinder Engines, 250 Cubic Inch:
Valve Lash:
Intake: .095"-.145"
Exhaust: .095"-.145"
Valve Angles:
Seat: 45 Degrees
Face: 44 Degrees
Valve Spring Height, Installed: 1-37/64"
Valve Spring Pressure: 149 Lbs @ 1.20"
Valve Stem Clearance:
Intake .0008"-.0025"
Exhaust .001"-.0027"
Valve Stem Diameter:
Intake: .3100"-.3107"
Exhaust: .3098"-.3105"
8 Cylinder 302 Cubic Inch Engine:
Valve Lash:
Intake: .090"-.140"
Exhaust: .090"-.140"
Valve Angles:
Seat: 45 Degrees
Face: 44 Degrees
Valve Spring Height, Installed: 1-11/16"
Valve Spring Pressure: 200 Lbs @ 1.31"
Valve Stem Clearance:
Intake .001"-.0027"
Exhaust .0015"-.0032"
Valve Stem Diameter:
Intake: .3416"-.3423"
Exhaust: .3411"-.3418"
Piston, Rings, Pins, Crankshaft & Bearing Data:
6 Cylinder, 200 Cubic Inch Engines:
Piston Clearance: .0014"-.0020"
Ring End Gap:
Compression: .008"
Oil: .015"
Wrist Pin Diameter: .912"
Rod Bearings:
Shaft Diameter: 2.1232"-2.1240"
Bearing Clearance: .0002"-.0024"
Main Bearings:
Shaft Diameter: 2.2482"-2.2490"
Bearing Clearance: .0007"-.0026"
Thrust on Bearing: #5
Crankshaft End Play: .004"-.008"
6 Cylinder, 250 Cubic Inch Engines:
Piston Clearance: .0013"-.0021"
Ring End Gap:
Compression: .008"
Oil: .015"
Wrist Pin Diameter: .912"
Rod Bearings:
Shaft Diameter: 2.1232"-2.1240"
Bearing Clearance: .0008"-.0024"
Main Bearings:
Shaft Diameter: 2.3982"-2.3990"
Bearing Clearance: .0008"-.0024"
Thrust on Bearing: #5
Crankshaft End Play: .004"-.008"
8 Cylinder, 302 Cubic Inch Engine:
Piston Clearance: .0018"-.0026"
Ring End Gap:
Compression: .010"
Oil: .015"
Wrist Pin Diameter: .912"
Rod Bearings:
Shaft Diameter: 2.1228"-2.1236"
Bearing Clearance: .0008"-.0026"
Main Bearings:
Shaft Diameter: 2.2482"-2.2490"
Bearing Clearance: .0005"-.0024"
Thrust on Bearing #3
Crankshaft End Play: .004"-.008"
Engine Tightening Specifications:
6 Cylinder Engines, 200 & 250 Cubic Inch:
Spark Plugs: 15-20 Ft. Lbs.
Cylinder Head Bolts: 70-75 Ft. Lbs.
Exhaust Manifold: 13-18 Ft. Lbs.
Rocker Arm Shaft Bracket: 30-35 Ft. Lbs.
Rocker Arm Cover: 3-5 Ft. Lbs.
Connecting Rod Cap Bolts: 21-26 Ft. Lbs.
Main Bearing Cap Bolts: 60-70 Ft. Lbs.
Flywheel to Crankshaft: 75-85 Ft. Lbs.
Vibration Damper or Pulley: 85-100 Ft. Lbs.
8 Cylinder 302 Cubic Inch Engines:
Spark Plugs: 15-20 Ft. Lbs.
Cylinder Head Bolts: 65-72 Ft. Lbs.
Intake Manifold: 23-25 Ft. Lbs.
Exhaust Manifold: 12-16 Ft. Lbs.
Rocker Arm Studs: 17-23 Ft. Lbs.
Rocker Arm Cover: 3-5 Ft. Lbs.
Connecting Rod Cap Bolts: 19-24 Ft. Lbs.
Main Bearing Cap Bolts: 60-70 Ft. Lbs.
Flywheel to Crankshaft: 75-85 Ft. Lbs.
Vibration Damper or Pulley: 70-90 Ft. Lbs.
Capacities-All Series:
6 Cylinder 200 Cubic Inch Engine:
Cooling System:
Without Heater: 8 Quarts
With Heater: 9 Quarts
With Air Conditioning: 9 Quarts
Radiator Cap Pressure:
With Air Conditioning: 12-15 PSI
Without Air Conditioning: 12-15 PSI
Thermostat Opening: 190 Degrees
Fuel Tank: 15 Gallons
Engine Oil Refill: 5 Quarts*
Manual Transmission:
Three Speed: 3-1/2 Pints
Automatic Transmission: 8 Quarts
Rear Axle: 4 Pints
* With New Oil Filter
6 Cylinder 250 Cubic Inch Engine:
Cooling System:
Without Heater: 8-3/4 Quarts
With Heater: 9-3/4 Quarts
With Air Conditioning: 9-3/4 Quarts
Radiator Cap Pressure:
With Air Conditioning: 12-15 PSI
Without Air Conditioning: 12-15 PSI
Thermostat Opening: 190 Degrees
Fuel Tank: 15 Gallons
Engine Oil Refill: 4-1/2 Quarts*
Manual Transmission:
Three Speed: 3-1/2 Pints
Automatic Transmission: 8 Quarts
Rear Axle: 4 Pints
* With New Oil Filter
8 Cylinder 302 Cubic Inch Engine:
Cooling System:
Without Heater: 12-1/2 Quarts
With Heater: 13-1/2 Quarts
With Air Conditioning: 14-1/4 Quarts
Radiator Cap Pressure:
With Air Conditioning: 12-15 PSI
Without Air Conditioning: 12-15 PSI
Thermostat Opening: 190 Degrees
Fuel Tank: 15 Gallons
Engine Oil Refill: 5 Quarts*
Manual Transmission:
Three Speed: 3-1/2 Pints
Automatic Transmission: 9 Quarts
Rear Axle: 4 Pints
* With New Oil Filter
Starting Motor Specifications:
6 Cylinder 200 Cubic Inch Engines:
Part #D2OF-AA, BA
Brush Spring Tension: 40 Ounces
No Load Test: 70 Amperes, 12 Volts
Torque Test: 670 Amperes, 5.0 Volts, @ 15-1/2 Ft. Lbs.
Part #D2ZF- BA
Brush Spring Tension: 40 Ounces
No Load Test: 70 Amperes, 12 Volts
Torque Test: 670 Amperes, 5.0 Volts, @ 15-1/2 Ft. Lbs.
6 Cylinder 250 Cubic Inch Engines:
Part #D2AF-CA
Brush Spring Tension: 40 Ounces
No Load Test: 70 Amperes, 12 Volts
Torque Test: 670 Amperes, 5.0 Volts, @ 15-1/2 Ft. Lbs.
302 Cubic Inch 8 Cylinder Engines:
Part #D2AF-CA
Brush Spring Tension: 40 Ounces
No Load Test: 70 Amperes, 12 Volts
Torque Test: 670 Amperes, 5.0 Volts, @ 15-1/2 Ft. Lbs.
Part #D2AF-DA
Brush Spring Tension: 40 Ounces
No Load Test: 70 Amperes, 12 Volts
Torque Test: 670 Amperes, 5.0 Volts, @ 15-1/2 Ft. Lbs.
Ford Alternator Specifications:
Note: Not all alternators shown are available on the Comet.
Purple, 38 Ampere Alternator:
Current Rating: 38 Amperes @ 15 Volts
Field Current @ 75 Degrees: 2.9 Amperes @ 12 Volts
Voltage Regulator #D3TZ-A
Voltage @ 75 Degrees: 13.5-15.3 Volts
Field Relay:
Closing Voltage @ 75 Degrees: 2.5 to 4.0 Volts
Orange, 42 Ampere Alternator:
Current Rating: 42 Amperes @ 15 Volts
Field Current @ 75 Degrees: 2.9 Amperes @ 12 Volts
Voltage Regulator #D3TZ-A
Voltage @ 75 Degrees: 13.5-15.3 Volts
Field Relay:
Closing Voltage @ 75 Degrees: 2.5 to 4.0 Volts
Red, 55 Ampere Alternator:
Current Rating: 55 Amperes @ 15 Volts
Field Current @ 75 Degrees: 2.9 Amperes @ 12 Volts
Voltage Regulator #D3TZ-A
Field Relay:
Closing Voltage @ 75 Degrees: 2.5 to 4.0 Volts
Green, 61 Ampere Alternator:
Current Rating: 61 Amperes @ 15 Volts
Field Current @ 75 Degrees: 2.9 Amperes @ 12 Volts
Voltage Regulator #D3TZ-A
Voltage @ 75 Degrees: 13.5-15.3 Volts
Field Relay:
Closing Voltage @ 75 Degrees: 2.5 to 4.0 Volts
Green, 70 Ampere Alternator:
Current Rating: 70 Amperes @ 15 Volts
Field Current @ 75 Degrees: 2.9 Amperes @ 12 Volts
Voltage Regulator #D3TZ-A
Voltage @ 75 Degrees: 13.5-15.3 Volts
Field Relay:
Closing Voltage @ 75 Degrees: 2.5 to 4.0 Volts
Distributor Specifications:
Note: Not distributors shown are available on the Comet
Part #D3AF-AA
Centrifugal Advance:
Advance Starts: 0 to 1-1/2 Degree @ 500 RPM
Intermediate Advance: 4 to 6 Degrees @ 750 RPM
Intermediate Advance: 6 to 8 Degrees @ 1,000 RPM
Intermediate Advance: 10 to 12-1/2 Degrees @ 1,500 RPM
Full Advance: 16-1/2 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 13 Degrees @ 20" Vacuum
Part #D3AF-BA
Centrifugal Advance:
Advance Starts: 0 to 1-1/2 Degree @ 500 RPM
Intermediate Advance: 3-1/2 to 5-1/2 Degrees @ 750 RPM
Intermediate Advance: 5-1/2 to 7-1/2 Degrees @ 1,000 RPM
Intermediate Advance: 8-1/2 to 11 Degrees @ 1,500 RPM
Full Advance: 14-1/2 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 13 Degrees @ 20" Vacuum
Part #D3MF-BA
Centrifugal Advance:
Advance Starts: 0 to1 Degree @ 500 RPM
Intermediate Advance: 0 to 1-1/2 Degrees @ 750 RPM
Intermediate Advance: 3-1/2 to 5-1/2 Degrees @ 1,000 RPM
Intermediate Advance: 7-1/2 to 10 Degrees @ 1,500 RPM
Full Advance: 11 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 7 Degrees @ 20" Vacuum
Part #D3MF-DA
Centrifugal Advance:
Advance Starts: 0 to 1 Degree @ 500 RPM
Intermediate Advance: 1-1/2 to 4 Degrees @ 750 RPM
Intermediate Advance: 5-1/2 to 7-1/2 Degrees @ 1,000 RPM
Intermediate Advance: 7-1/2 to 9 Degrees @ 1,500 RPM
Full Advance: 10-1/2 Degrees @ 2,200 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 11 Degrees @ 20" Vacuum
Part #D3MF-OA
Centrifugal Advance:
Advance Starts: 0 to 1 Degrees @ 500 RPM
Intermediate Advance: 0 to 2 Degrees @ 750 RPM
Intermediate Advance: 1-1/2 to 3-1/2 Degrees @ 1,000 RPM
Intermediate Advance: 4-1/2 to 7 Degrees @ 1,500 RPM
Full Advance: 10-1/2 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 12-1/2 Degrees @ 20" Vacuum
Part #D3OF-AA
Centrifugal Advance:
Advance Starts: 0 to 1-1/2 Degree @ 500 RPM
Intermediate Advance: 6-1/2 to 8-1/2 Degrees @ 750 RPM
Intermediate Advance: 7 to 9 Degrees @ 1,000 RPM
Intermediate Advance: 8 to 10-1/2 Degrees @ 1,500 RPM
Full Advance: 11-1/2 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 9 Degrees @ 20" Vacuum
Maximum Retard: 4 Degrees @ 20" Vacuum
Part #D3OF-BA
Centrifugal Advance:
Advance Starts: 0 to1-1/2 Degree @ 500 RPM
Intermediate Advance: 4 to 6 Degrees @ 750 RPM
Intermediate Advance: 4-1/2 to 6-1/2 Degrees @ 1,000 RPM
Intermediate Advance: 6 to 8 Degrees @ 1,500 RPM
Full Advance: 10 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 9 Degrees @ 20" Vacuum
Maximum Retard: 4 Degrees @ 20" Vacuum
Part #D3OF-DA
Centrifugal Advance:
Advance Starts: 0 to1 Degree @ 500 RPM
Intermediate Advance: 0 to 1-1/2 Degrees @ 750 RPM
Intermediate Advance: 4 to 6 Degrees @ 1,000 RPM
Intermediate Advance: 7 to 9-1/2 Degrees @ 1,500 RPM
Full Advance: 11 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 5 Degrees @ 20" Vacuum
Maximum Retard: 7 Degrees @ 20" Vacuum
Part #D3OF-EA
Centrifugal Advance:
Advance Starts: 0 to 1 Degrees @ 500 RPM
Intermediate Advance: 0 to 1-1/2 Degrees @ 750 RPM
Intermediate Advance: 4 to 6 Degrees @ 1,000 RPM
Intermediate Advance: 7 to 9-1/2 Degrees @ 1,500 RPM
Full Advance: 11 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 5 Degrees @ 20" Vacuum
Maximum Retard: 4 Degrees @ 20" Vacuum
Part #D3OF-FA
Centrifugal Advance:
Advance Starts: 0 to1 Degree @ 500 RPM
Intermediate Advance: 0 to 1-1/2 Degrees @ 750 RPM
Intermediate Advance: 1 to 3 Degrees @ 1,000 RPM
Intermediate Advance: 5-1/2 to 8 Degrees @ 1,500 RPM
Full Advance: 13 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 5 Degrees @ 20" Vacuum
Maximum Retard: 7 Degrees @ 20" Vacuum
Part #D3OF-GA
Centrifugal Advance:
Advance Starts: 0 to1 Degree @ 500 RPM
Intermediate Advance: 0 to 1-1/2 Degrees @ 750 RPM
Intermediate Advance: 1 to 3 Degrees @ 1,000 RPM
Intermediate Advance: 6 to 8-1/2 Degrees @ 1,500 RPM
Full Advance: 13-1/2 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 5 Degrees @ 20" Vacuum
Part #D3OF-HA
Centrifugal Advance:
Advance Starts: 0 to1 Degree @ 500 RPM
Intermediate Advance: 0 to 2-1/2 Degrees @ 750 RPM
Intermediate Advance: 2 to 4-1/2 Degrees @ 1,000 RPM
Intermediate Advance: 5-1/2 to 8-1/2 Degrees @ 1,500 RPM
Full Advance: 12 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 5 Degrees @ 20" Vacuum
Part #D3OF-JA
Centrifugal Advance:
Advance Starts: 0 to1 Degree @ 500 RPM
Intermediate Advance: 0 to 2-1/2 Degrees @ 750 RPM
Intermediate Advance: 2 to 4-1/2 Degrees @ 1,000 RPM
Intermediate Advance: 5-1/2 to 8-1/2 Degrees @ 1,500 RPM
Full Advance: 12 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 5 Degrees @ 20" Vacuum
Part #D3OF-LA
Centrifugal Advance:
Advance Starts: 0 to1-1/2 Degree @ 500 RPM
Intermediate Advance: 4-1/2 to 6-1/2 Degrees @ 750 RPM
Intermediate Advance: 6 to 8 Degrees @ 1,000 RPM
Intermediate Advance: 8 to 10-1/2 Degrees @ 1,500 RPM
Full Advance: 12 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 9 Degrees @ 20" Vacuum
Maximum Retard: 4 Degrees @ 20" Vacuum
Part #D3OF-PA
Centrifugal Advance:
Advance Starts: 0 to 1 Degrees @ 500 RPM
Intermediate Advance: 0 to 2-1/2 Degrees @ 750 RPM
Intermediate Advance: 2 to 4-1/2 Degrees @ 1,000 RPM
Intermediate Advance: 6 to 8-1/2 Degrees @ 1,500 RPM
Full Advance: 12-1/2 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 5 Degrees @ 20" Vacuum
Maximum Retard: 4 Degrees @ 20" Vacuum
Part #D3OF-RA
Centrifugal Advance:
Advance Starts: 0 to 1-1/2 Degrees @ 500 RPM
Intermediate Advance: 3-1/2 to 5-1/2 Degrees @ 750 RPM
Intermediate Advance: 5-1/2 to 7-1/2 Degrees @ 1,000 RPM
Intermediate Advance: 6-1/2 to 8-1/2 Degrees @ 1,500 RPM
Full Advance: 10-1/2 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 9-1/2 Degrees @ 20" Vacuum
Maximum Retard: 4 Degrees @ 20" Vacuum
Part #D3SF-BA
Centrifugal Advance:
Advance Starts: 0 to1 Degree @ 500 RPM
Intermediate Advance: 1/2 to 2-1/2 Degrees @ 750 RPM
Intermediate Advance: 5-1/2 to 8 Degrees @ 1,000 RPM
Intermediate Advance: 10 to 12 Degrees @ 1,500 RPM
Full Advance: 13-1/2 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 11 Degrees @ 20" Vacuum
Part #D3UF-GA
Centrifugal Advance:
Advance Starts: 0 to1 Degree @ 500 RPM
Intermediate Advance: 0 to 2-1/2 Degrees @ 750 RPM
Intermediate Advance: 2 to 4-1/2 Degrees @ 1,000 RPM
Intermediate Advance: 5-1/2 to 8-1/2 Degrees @ 1,500 RPM
Full Advance: 12 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 5 Degrees @ 20" Vacuum
Maximum Retard: 4 Degrees @ 20" Vacuum
Part #D3VF-CA
Centrifugal Advance:
Advance Starts: 0 to1 Degree @ 500 RPM
Intermediate Advance: 0 to 1-1/2 Degrees @ 750 RPM
Intermediate Advance: 4 to 6 Degrees @ 1,000 RPM
Intermediate Advance: 6 to 8 Degrees @ 1,500 RPM
Full Advance: 10 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 11 Degrees @ 20" Vacuum
Part #D3ZF-CA
Centrifugal Advance:
Advance Starts: 0 to1 Degree @ 500 RPM
Intermediate Advance: 3-1/2 to 5-1/2 Degrees @ 750 RPM
Intermediate Advance: 4-1/2 to 6-1/2 Degrees @ 1,000 RPM
Intermediate Advance: 6-1/2 to 9 Degrees @ 1,500 RPM
Full Advance: 11-1/2 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 13 Degrees @ 20" Vacuum
Part #D3ZF-GA
Centrifugal Advance:
Advance Starts: 0 to 1 Degree @ 500 RPM
Intermediate Advance: 0 to 2-1/2 Degrees @ 750 RPM
Intermediate Advance: 2-1/4 to 4 Degrees @ 1,000 RPM
Intermediate Advance: 5-1/2 to 7-1/2 Degrees @ 1,500 RPM
Full Advance: 11 Degrees @ 2,000 RPM
Vacuum Advance Data:
Advance Starts @ 5" Vacuum
Full Advance: 12-1/2 Degrees @ 20" Vacuum
Brake Specifications, Passenger Cars, All Series
6 & 8 Cylinder Passenger Cars:
Brake Drum Diameter: 10.00"
Wheel Cylinder Bore:
Front Drum: 1.125"
Rear: .875"
Master Cylinder Bore:
Drum Brakes: 1"
Rear Axle, All Models:
Carrier Type: Removable
Ring Gear & Pinion Backlash: .008"-.012"
Nominal Pinion Locating Shim: .015" (With 8" Ring Gear: .022")
Pinion Bearing Preload:
With New Bearings:
With Seal: 17-27 Inch Pounds
With Used Bearings:
With Seal: 8-14 Inch Pounds
Differential Bearing Preload:
With New Bearings: .008"-.012"
With Used Bearings: .005"-.008"
Pinion Nut Torque:
With Collapsible Spacer: 170 Ft. Lbs.
With Solid Spacer: 200 Ft. Lbs.
Wheel Alignment Specifications:
All Models:
Caster: -1/2 Degrees
Camber:
Left: + 1/4 Degree
Right: + 1/4 Degree
Toe-In: 1/4"
Toe-Out on Turns:
Outer Wheel:
Manual Steering: 18.44 Degrees
Power Steering: 18.21 Degrees
Inner Wheel: 20 Degrees
Ford Carburetor Adjustments:
Note: See 1973 Ford Motor Company Carburetors Data File
Popular Options:
AM Radio & Antenna; AM-FM Radio; Automatic Transmission; White Wall Tires; Deluxe Wheel Covers; Air Conditioning; Front & Rear Bumper Guards; Rear Window Defogger; Power Steering; Tinted Glass; Two-Tone Paint; Glamour Paint; Vinyl Roof; Bucket Seats; Trim Rings with Hubcaps; Various Trim Optionns; GT Package; Various Trim Options; Engine & Transmission Options; and Much More.
1973 Mercury Historical Data:
Introduction date of the 1973 Mercury Comet was on September 22, 1972.
Total Mercury Production for the1973 model year was 556,907 including 84,691 Comets.
1973 Mercury Colors & Codes:
1-C Black
1-G Silver
2-B Bright Red
2-C Red
2-L Bright Red
3-B Light Blue
3-D Medium Blue
3-K Silver Blue Glamour
3-M Silver Blamour
3-N Light Grabber Blue
3-P Light Grabber Blue
3-Q Pastel Blue
4-B Green Gold
4-C Ivy Glamour
4-N Medium Aqua
4-P Medium Green
4-Q Dark Green
4-S Light Green
5-A Light Pewter
5-H Ginger
5-J Ginger Glamour
5-L Tan
5-M Medium Copper
5-T Saddle Bronze
6-B Light Goldenrod
6-C Medium Goldenrod
6-D Yellow
6-E Medium Bright Yellow
6-F Gold Glamour
6-L Medium Gold
9-A White
9-C Special White
Promotional Models Available:
None
Copyright 2001, Custom Solutions & Services