GENERAL SPECIFICATIONS
|
Model Designation: Eight
Cylinder
Available in Plaza, Savoy, and Belvedere
Models - P27 |
| Wheel base: 115 |
| Valve Location: In
head |
| Bore and
Stroke: 3.6250 x 3.250 |
| Piston displacement, Cubic
Inches: 270 |
| Compression
ratio: 8.0 |
| Maximum
Brake Horsepower: 180
@ 4400 RPM |
| Maximum
Torque Lbs.Ft. @ RPM: 260
@ 2400 |
| Normal
Oil Pressure Pounds: 50-65 |
TUNE UP SPECIFICATIONS
|
| Spark Plug
Make: Auto-Lite AR-52 |
| Spark Plug
Gap, Inch: .035 |
| Firing
Order: 18436572; front
to rear: left bank: 1-3-5-7, right bank 2-4-6-8
|
| Ignition
Timing: 4 degrees BTDC.
Timing mark on pulley |
| Engine
Idle Speed, RPM: In
neutral: 500 |
| Cylinder
Head Torque Lbs.Ft.: 85 |
| Compression
Pressure & Cranking Speed: 125 |
| Voltage & Polarity: 12
volts, negative ground |
PISTON AND RING SPECIFICATIONS
|
Fitting
Pistons with Scale:
Shim thickness to use: .0015
Pounds Pull On Scale: 5-10 |
Ring End
Gap: (Fit rings in tapered
bores for clearance shown in tightest portion of
ring travel.)
Compression: .010
Oil: .010 |
| Wristpin
Diameter, Inch: .8592 |
VALVE SPECIFICATIONS
|
Operating
Clearance:
Intake:
0 Exhaust: 0 |
| Valve Seat
Angle, degrees: 45 |
Valve Timing: (BTDC
= before top dead center; ATDC = after top dead
center)
Intake
opens: 14 degrees BTDC
Exhaust
Closes: 9 ATDC |
Valve Spring
Pressure Pounds at Inches Length:
Spring:
140 @ 1-5/16 |
Valve Stem
Clearance:
Intake:
.001-003
Exhaust: .002-.004 |
| Valve Lift
Zero Lash: Intake: .360
Exhaust: .360 |
| Stem Diameter: Intake:
.372-.373; Exhaust: .372-.373 |
ENGINE BEARING SPECIFICATIONS
|
Connecting Rod Bearings:
Journal
Diameter, Inches: 1.9375
Bearing Clearance, Inch: .0005-.0015 |
Main Bearings:
Journal
Diameter, Inches: 2.375
Bearing clearance: .0005-.0015
Shaft End Play: .002-.007 (Thrust
on Bearing No. 3) |
CAPACITY DATA
|
Cooling
System:
Without
heater: 19 quarts
With heater: 20 quarts
Radiator Cap Relief Pressure: 7; 14 lbs
with air conditioning
Thermostat Opening Temp.: 180
|
| Fuel Tank: 17
gallons |
| Engine
Oil: 5 quarts; add 1
quart for filter change |
| Transmission: standard:
2-3/4 pints; w/overdrive: 3-1/2; Automatic: 10 |
| Rear Axle: 3-1/4
pints |
DISTRIBUTOR SPECIFICATIONS
|
| Distributor part number: 1BJ-4301A,
1BJ-4301B (distributor rotates clockwise) |
| Cam Angle,
degrees: 31 |
| Breaker Point opening, Inch: .017 |
| Condenser
Capacity: .25-.28 Mfds. |
| Breaker Arm Spring Tension: 17-20
Oz. |
Centrifugal
Advance: (degrees
at RPM of distributor)
1BJ-4301A:
Advance starts 1
degrees @ 400
Full Advance: 15 degrees @ 2150
1BJ-4301B
Advance starts 1 degrees @ 385
Full Advance: 16 @ 2000
|
Vacuum
Advance Data:
Inches of vacuum
to start plunger movement: 5-1/2
Inches of vacuum for full plunger travel:
15
Maximum vacuum advance, Dist. degrees:
1BJ-4301A: 12-1/2; 1BJ-4301B: 11-1/2 |
GENERATOR SPECIFICATIONS
|
| Generator
Number: GJC-7001A, GJC-7002A,
GJC7003B (generator rotates clockwise, 12 volts,
Negative Ground) |
| Generator
output: 30 @ 2250 RPM |
| Brush Spring
Tension: 18-36 oz. |
| Field Current: 1.2
- 1.3 at 10 volts |
REGULATOR SPECIFICATIONS
|
| Regulator
Number: VRX-6201A |
Cutout
Relay:
Voltage
to close points:13.1
Armature Air Gap: .032 |
| Voltage
Regulator Setting: 14.3
volts |
| Current
Regulator Setting: 30
amps |
| Current
and voltage armature air gap, Inch: .050 |
STARTING MOTOR SPECIFICATIONS
|
| Part number: MDF-6007,
MDG-6002 (starter rotates clockwise) |
| Bush Spring
Tension, Ounces: 42-53 |
| No Load
Test: MDF-6007: 60
amps, 10.0 volts @ 3200 RPM; MDG-6002: 50 amps,
10.0 volts @ 4400 RPM
|
| Torque
Test: MDF-6007: 240
Amps, 4.0 volts, Torque, Lbs.Ft.: 6-1/2; MDG-6002:
210 Amps, 4.0 volts, Torque, Lbs.Ft.: 5 |
ENGINE TIGHTENING SPECIFICATIONS
(FT. LBS.)
|
| Spark Plugs: 30 |
| Cylinder
Head Bolts: 85 |
| Intake
Manifold: 30 |
| Exhaust
Manifold: 25 |
| Rocker
Arm Shaft Bracket: 30 |
| Rocker
Arm Cover: 20-25 inch/lbs. |
| Connecting
Rod Cap Bolts: 45 |
| Main Bearing
Cap Bolts: 85 |
| Flywheel
to Crankshaft: 60 |
| Vibration
Damper or Pulley: 135 |
REAR AXLE AND BRAKE CYLINDER
SPECIFICATIONS
|
| Ring Gear & Pinion
Backlash, Inch: .006-.010 |
| Drive
Pinion Adjustment: Washer |
| Drive Pinion
Bearing Adjustment: Shims |
| Axle Shaft
End Play, Inch: .003-.008 |
Hydraulic
Cylinder Bore Sizes, Inch:
Wheel Cylinder:
Front: 1-1/8
Rear: 1-1/8
Master Cylinder: 1-1/8 |
WHEEL ALIGNMENT SPECIFICATIONS
|
Caster,
Degrees
Limits: -2
to 0
Desired: -1 |
Camber,
Degrees
Limits: -1/8
to +5/8
Desired: +1/2
on left side and 0 on right side |
| Toe-In,
Inches: 1/8 |
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 to 6-1/2 |
