GENERAL SPECIFICATIONS
|
| Model Designation:
New Yorker: C56-1; New Yorker Special: C56-1; Custom Imperial: C58; Crown Imperial: C59 |
| Wheel base: New Yorker & New Yorker Special: 125-1/2; Custom Imperial: 133-1/2; Crown Imperial: 145-1/2 |
| Valve Location: In
head |
| Bore and
Stroke: 3-13/16 x 3-5/8 |
| Piston displacement, Cubic
Inches: 331.1 |
| Compression
ratio: 7.50 |
| Maximum
Brake Horsepower: 180
@ 4000 RPM |
| Maximum
Torque Lbs.Ft. @ RPM: 312
@ 2000 RPM |
| Normal
Oil Pressure Pounds: 60 |
TUNE UP SPECIFICATIONS (all models) |
| Spark Plug
Make: Auto-Lite 4S-140 |
| Spark Plug
Gap, Inch: .035 |
| Firing
Order: 18436572 (front to rear: left bank: 1-3-5-7; right bank 2-4-6-8) |
| Timing
Mark: 4 degrees BTDCl Location: Vib. Damper |
| Engine
Idle Speed, RPM: 475 |
| Cylinder
Head Torque Lbs.Ft.: 85 |
| Compression
Pressure & Cranking Speed: 135 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: 5 to 12 |
Ring End
Gap: In tapered bores,
fit rings in tightest portion of ring travel
Compression: .015
Oil: .015 |
| Clearance in Groove: Compression:
.001-.0025; Oil: .001-.0025 |
| Wristpin
Diameter, Inch: .9841-9843 |
VALVE SPECIFICATIONS
|
Operating
Clearance:
Intake:
0; Exhaust: 0 |
| Valve Seat
Angle, degrees: 45 |
| Clearance for Timing Intake: .0 |
Valve Timing: (BTDC
= before top dead center; ATDC = after top dead
center)
Intake
opens: 15 BTDC
Exhaust
Closes: 15 ATDC |
Valve Spring
Pressure Pounds at Inches Length:
Inner
Spring: 40 @ 1-3/4; Outer Spring: 126 @ 1-5/16 |
| Valve Stem
Clearance: Intake: .001-.003; Exhaust:
.002-.004 |
ENGINE BEARING SPECIFICATIONS
|
Connecting Rod Bearings:
Journal
Diameter, Inches: 2.249-2.250
Bearing Clearance, Inch: .0005-.0015
Rod End Play, Inch: .006-.014
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 No. 3 Bearing)
Main Bolt Tension: Lbs.Ft.: 80-85 |
CAPACITY DATA
|
Cooling
System:
Without
heater: 25 quarts; With heater: 26 quarts |
| Fuel Tank: 20 gallons |
| Engine
Oil: 5 quarts |
| Transmission: Manual: 3 Pints; for semi-automatic trans: 3 pints; w/torque converter, combined engine & converter requires 12 qts, with 1 additional when changing filter; Fluid Torque Drive requires 10-1/2 quarts ; Crown Imperial w/Automatic transmission: 12 qts. |
| Rear Axle: 3-1/2
pints; Crown Imperial: 5 pints |
AUTO-LITE DISTRIBUTOR SPECIFICATIONS
|
| Distributor part number: 1AZ-4001-A
(distributor rotates clockwise) |
| Cam Angle,
degrees: 34 |
| Breaker Point opening, Inch: .018 |
| Condenser
Capacity: .25-.28
Mfds. |
| Breaker Arm Spring Tension: 17-20
Oz. |
Centrifugal Advance: (degrees
at RPM of distributor)
Advance starts: 1 @ 370 RPM
Full Advance: 13-1/2 @ 1700 RPM
Vacuum Advance (degrees @ Inches of Mercury)
Advance Starts: 1 @ 6
Full Advance: 11-1/2 @ 17 |
AUTO-LITE GENERATOR SPECIFICATIONS
|
| Generator Number: GGW-6001; GGU-6001 (generator rotates clockwise, 6 volts, Positive Ground) |
| Generator output: GGW-6001: 45 amps @ 2125 RPM; GGU-6001: 50 amps @ 1750 RPM; |
| Brush Spring Tension: 35-53 oz. |
| Field Current at 5 Volts: GGW-6001: 1.4-1.5; GGU-6001: 1.4-1.6 |
AUTO-LITE REGULATOR SPECIFICATIONS
|
| Regulator Number: VRP-6004A, VAV-6001B |
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: VRP-6004A: 45 amps; VAV-6001B: 50 amps |
AUTO-LITE STARTING MOTOR SPECIFICATIONS
|
| Part number: MCL-6117; MCL-6121A (rotates clockwise) |
| Bush Spring Tension, Ounces: 42-53 |
| No Load Test: 65 amps, 5 volts @ 4900 RPM |
| Torque Test: 410 Amps, 2.0 volts; Torque: 8.0 ft/lbs. |
WHEEL ALIGNMENT SPECIFICATIONS
|
Caster, Degrees
Limits: -1 to -2
Desired: -1-1/2 |
Camber, Degrees
Limits: -3/8 to +3/8
Desired: 0 |
| 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)
145-1/2 wheelbase: 6-1/2 to 8; all others: 6 to 6-1/2 |
