GENERAL SPECIFICATIONS |
| Model Designation: Coronet 6: D56-1 |
| Wheel base: 120 |
| Valve Location: In block |
| Bore and Stroke: 3-1/4 x 4-5/8 |
| Piston displacement, Cubic Inches: 230 |
| Compression ratio: 7.4 |
| Maximum Brake Horsepower: 123 @ 3600 RPM |
| Maximum Torque Lbs.Ft. @ RPM: 194 @ 1600 RPM |
| Normal Oil Pressure Pounds: 45 |
TUNE UP SPECIFICATIONS (all models) |
| Spark Plug Make: Auto-Lite 4S-140 |
| Spark Plug Gap, Inch: .035 |
| Firing Order: 153624 |
| Timing Mark: 2 degrees Before Top Dead Center; location: Vib. Damper |
| Engine Idle Speed, RPM: w/manual transmission: 475; w/automatic: 475 |
| Cylinder Head Torque Lbs.Ft.: 70 |
| Compression Pressure & Cranking Speed: 120 min. |
| Voltage & Polarity: 6 volts, positive ground |
PISTON AND RING SPECIFICATIONS |
| Fitting Pistons with Scale: Pistons removed from above. Shim thickness: .001 |
| Pounds on a Pull Scale: 6 to 10 |
Ring End Gap: In tapered bores, fit rings in tightest portion of ring travel
Compression: .007
Oil: .007 |
| Clearance in Groove: Compression: Top ring: .0025-.004; second ring: .002-.0035; Oil: .001-.0025 |
| Wristpin Diameter, Inch: .8591-.8593 |
VALVE SPECIFICATIONS |
Operating Clearance:
Intake: .010 Hot; Exhaust: .010 Hot |
| Valve Seat Angle, degrees: 45 |
| Clearance for Timing Intake: .014 |
Valve Timing: (BTDC = before top dead center; ATDC = after top dead center)
Intake opens: 12 BTDC
Exhaust Closes: 6 ATDC |
Valve Spring Pressure Pounds at Inches Length:
Inner Spring: 40 @ 1-3/4 |
| Valve Stem Clearance: Intake: .002; Exhaust: .004 |
ENGINE BEARING SPECIFICATIONS |
Connecting Rod Bearings:
Journal Diameter, Inches: 2.0615-2.0625
Bearing Clearance, Inch: .006-.011
Rod End Play, Inch: .006-.011
Rod Bolt Tension: Lbs.Ft.: 45-50 |
Main Bearings:
Journal Diameter, Inches: 2.499-2.500
Bearing clearance: .0005-.0015
Shaft End Play: .003-.007 (Thrust on Rear Bearing)
Main Bolt Tension: Lbs.Ft.: 80-85 |
CAPACITY DATA |
Cooling System:
Without heater: 13 quarts; With heater: 14 quarts |
| Fuel Tank: 17 gallons |
| Engine Oil: 5 quarts |
| Transmission: Manual: 2-3/4 Pints; w/overdrive: 3-1/4; w/Automatic Transmission: 10 quarts |
| Rear Axle: 3-1/4 pints |
AUTO-LITE DISTRIBUTOR SPECIFICATIONS |
| Distributor part number: 1AT-4101B (distributor rotates clockwise) |
| Cam Angle, degrees: 39 |
| Breaker Point opening, Inch: .020 |
| Condenser Capacity: .25-.28 Mfds. |
| Breaker Arm Spring Tension: 17-20 Oz. |
Centrifugal Advance: (degrees at RPM of distributor)
Advance starts: 1 @ 525 RPM
Full Advance: 8 @ 1350 RPM
Vacuum Advance (degrees @ Inches of Mercury)
Advance Starts: 1 @ 5-7/8
Full Advance: 8 @ 14 |
AUTO-LITE GENERATOR SPECIFICATIONS |
| Generator Number: GGW-6001, GGW-6012 (generator rotates clockwise, 6 volts, Positive Ground) |
| Generator output: 45 amps @ 2125 RPM |
| Brush Spring Tension: 35-53 oz. |
| Field Current at 5 Volts: 1.4-1.5 |
AUTO-LITE REGULATOR SPECIFICATIONS |
| Regulator Number: VBE-6001A |
Cutout Relay:
Voltage to close points: 6.5
Reverse current to open points: 4.1 - 4.8
Armature Air Gap: .031 inches |
| Voltage Regulator Setting: 7.3 volts |
| Current and Voltage Armature Air Gap: .048 inches |
| Current Regulator Setting: 45 amps |
AUTO-LITE STARTING MOTOR SPECIFICATIONS |
| Part number: MCH-6205; MCH-6206 (rotates clockwise) |
| Bush Spring Tension, Ounces: 42-53 |
| No Load Test: 65 amps, 5 volts @ 4300 RPM |
| Torque Test: 335 Amps, 2.0 volts; Torque: 6.0 ft/lbs. |
WHEEL ALIGNMENT SPECIFICATIONS |
Caster, Degrees
Limits: -2 to 0
Desired: -1 |
Camber, Degrees
Limits: -1/8 to +5/8
Desired: +1/4 |
| Toe-In, Inches: 0 to 1/16 |
Toe-Out on Turns, Degrees: (If toe-out is incorrect, when other adjustments are correct, look for bent steering arms.)
Outer wheel: 20
Inner Wheel: 20-1/2 to 22-1/2 |
Kingpin Angle, or Steering Axis Degrees: (If king pin or spindle support angle are incorrect, but camber is correct, look for bent suspension arms or steering knuckle support)
5-1/2 @ 0 Camber |
