GENERAL SPECIFICATIONS
|
| Model Designation: Commander
6: 17A |
| Wheel base:
120 |
| Valve Location: In
block |
| Bore and
Stroke: 3-5/16
x 4-3/4 |
| Piston displacement, Cubic
Inches: 245.6 |
| Compression
ratio: 7.00 |
| Maximum
Brake Horsepower: 102
@ 3200 RPM |
| Maximum
Torque Lbs.Ft. @ RPM: 205
@ 1200 RPM |
| Normal
Oil Pressure Pounds: 40 |
TUNE UP SPECIFICATIONS
|
| Spark Plug
Make: Champion J7 |
| Spark Plug
Gap, Inch: .025 |
| Firing
Order: 153624
|
| Ignition
Timing: IGN on Vib.
Damp. |
| Engine
Idle Speed, RPM: 500 |
| Cylinder
Head Torque Lbs.Ft.: 83 |
| Compression
Pressure & Cranking Speed: 115
Min. |
| Voltage & Polarity: 6
volts, positive ground |
PISTON AND RING SPECIFICATIONS
|
Fitting
Pistons with Scale:
Shim Thickness to use: .002
(1 inch wide feeler); |
| Pounds
Pull on Scale:: 15
to 20 |
Ring End
Gap: (Fit rings in tapered
bores for clearance shown in tightest portion of
ring travel.)
Compression: .009
Oil: .009 |
| Clearance
in Groove: Compression:
.002-.0025; Oil: .0015-.002 |
| Wristpin
Diameter, Inch: .8741-.8745 |
VALVE SPECIFICATIONS
|
Operating
Clearance:
Intake:
.016 Cold Exhaust: .016 Cold |
| Valve Seat
Angle, degrees: 45 |
Valve Timing: (BTDC
= before top dead center; ATDC = after top dead
center)
Intake
opens: 15 degrees BTDC
Exhaust
Closes: 10 ATDC |
Valve Spring
Pressure Pounds at Inches Length:
Inner
Spring: 54 @ 2-3/32 |
| Valve Stem
Clearance: Intake: .0015-.0035; Exhaust:
.0015-.0035 |
| Clearance
for Timing Intake: .020 |
ENGINE BEARING SPECIFICATIONS
|
Connecting Rod Bearings:
Journal
Diameter, Inches: 2.18675-2.18775
Bearing Clearance, Inch: .0005-.002
Rod End Play, Inch: .005-.009
Rod Bolt Tension: Lbs.Ft.: 50-55 |
Main Bearings:
Journal
Diameter, Inches: 2.8745-2.8750
Bearing clearance: .0006-.0027
Shaft End Play: .003-.006 (Thrust
on front bearing)
Main Bolt Tension: Lbs.Ft.: 90-95 |
CAPACITY DATA
|
Cooling
System:
Without
heater: 13-1/2 quarts
With heater: 15 quarts |
| Fuel Tank: 18
gallons |
| Engine
Oil: 6 quarts |
| Transmission: w/out
overdrive: 2-1/4 pint; with overdrive: 3-1/2; w/Auto.
trans.: 11-1/2 quarts |
| Rear Axle: 3
pints |
DELCO-REMY DISTRIBUTOR SPECIFICATIONS
|
| Distributor part number: 1110220
(distributor rotates counter-clockwise when viewed
from top) |
| Cam Angle,
degrees: 31-37 |
| Breaker Point opening, Inch: .022 |
| Condenser
Capacity: .20-.25 Mfds. |
| Breaker Arm Spring Tension: 17-21
Oz. |
Centrifugal
Advance: (degrees at
RPM of distributor)
Advance starts:
2 degrees @ 500
Full Advance: 11 degrees @ 1400 |
Vacuum
Advance Data:
Inches of Vacuum
to Start Plunger Movement: 3-5
Inches of Vacuum for Full Plunger Travel:
9-15
Maximum Vacuum Advance, Dist. Degrees:
6 |
DELCO-REMY GENERATOR SPECIFICATIONS
|
| Generator
Number: 1102728
(generator rotates clockwise, 6 volts, positive
ground) |
| Generator
output: 30 amps @
2050 RPM |
| Brush Spring
Tension: 28 oz. |
| Field Current: 1.75
- 1.95 at 6 volts |
DELCO-REMY
REGULATOR SPECIFICATIONS
|
| Regulator
Number: 1118380 |
Cutout
Relay:
Voltage
to close points: 6.4
Reverse Current to Open Points: 0-3
amps
Armature Air Gap: .020 |
| Voltage
Regulator Setting: 7.2
volts |
| Current
Regulator Setting: 36
amps |
| Current
and voltage armature air gap, Inch: .075 |
DELCO-REMY STARTING MOTOR SPECIFICATIONS
|
| Part number: 1107084
(starter rotates clockwise) |
| Bush Spring
Tension, Ounces: 24-28 |
| No Load
Test: 70
amps, 5.65 volts @ 5500 RPM |
| Torque
Test: 550 Amps, 3.25
volts, Torque, Lbs.Ft.: 11 |
WHEEL ALIGNMENT SPECIFICATIONS
|
Caster,
Degrees
Limits: -1/2
to -2-1/2
Desired: -1-1/2 |
Camber,
Degrees
Limits: 0
to +1
Desired: +1/2 |
| Toe-In,
Inches: 1/16 to 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: 23
to 25 |
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)
5-1/4 |
