1947
Engine Specifications: 1947 Cadillac 346 V8
GENERAL SPECIFICATIONS
Model Designation: Series 60S, Series 61, Series 62, Series 75
Wheel base: Series 60S: 133; Series 61: 126; Series 62: 129; Series 75: 136
Valve Location: In block
Bore and Stroke: 3-1/2 x 4-1/2
Piston displacement, Cubic Inches: 346.0
Compression ratio: 7.25
Maximum Brake Horsepower: 150 @ 3400 RPM
Maximum Torque Lbs.Ft. @ RPM: 260 @ 1700 RPM
Normal Oil Pressure Pounds: 30
TUNE UP SPECIFICATIONS (all models)
Spark Plug Make: AC 104
Spark Plug Gap, Inch: .030
Firing Order: 18736542 (front to rear: Right bank 2-4-6-8, left bank 1-3-5-7)
Timing Mark: IGN, location: Vib. Damper
Engine Idle Speed, RPM: Standard transmission: 375; w/automatic 375 (in drive)
Cylinder Head Torque Lbs.Ft.: 70-75
Compression Pressure & Cranking Speed: 105
Voltage & Polarity: 6 volts, negative ground
PISTON AND RING SPECIFICATIONS
Fitting Pistons with Scale: Pistons removed from above. Shim thickness: .002
Pounds on a Pull Scale: 11
Ring End Gap: In tapered bores, fit rings in tightest portion of ring travel
Compression: .007
Oil: .007
Clearance in Groove: Compression: .0022-0035; Oil: .0015-.003
Wristpin Diameter, Inch: .875
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: Top Dead Center
Exhaust Closes: 10 ATDC
Valve Spring Pressure Pounds at Inches Length:
Inner Spring: 66 @ 1-59/64
Valve Stem Clearance: Intake: .001-.003; Exhaust: .002-.004
ENGINE BEARING SPECIFICATIONS
Connecting Rod Bearings:
Journal Diameter, Inches: 2.4590-2.4595
Bearing Clearance, Inch: .0005-.002
Rod End Play, Inch: .008-.014
Rod Bolt Tension: Lbs.Ft.: 60-65
Main Bearings:
Journal Diameter, Inches: 2.4990-2.4995
Bearing clearance: .0008-.0025
Shaft End Play: .001-.005 (Thrust on Number 2 Bearing)
Main Bolt Tension: Lbs.Ft.: 130-140
CAPACITY DATA
Cooling System:
Without heater: 25 quarts
Without heater: 25; with heater: 26
Fuel Tank: All models except 75: 20 gallons; Model 75: 24 gallons
Engine Oil: 7 quarts
Transmission: w/out overdrive: 2-1/2 pints; Automatic: 12 quarts
Rear Axle: 5 pints
DELCO-REMY DISTRIBUTOR SPECIFICATIONS
Distributor part number: 1110807 (distributor rotates clockwise)
Cam Angle, degrees: 21-30
Breaker Point opening, Inch: .016
Condenser Capacity: .18-.23 Mfds.
Breaker Arm Spring Tension: 19-23 Oz.
Centrifugal Advance: (degrees at RPM of distributor)
Advance starts: 1/2 @ 500 RPM
Full Advance: 12 @ 2000 RPM
Inches of Vacuum to Start Plunger Movement: 5-7
Inches of Vacuum for Full Plunger Movement: 15-18
Maximum Vacuum Advance Dist., Degrees: 9
DELCO-REMY GENERATOR SPECIFICATIONS
Generator Number: 1102693 (generator rotates clockwise, 6 volts, Negative Ground)
Generator output: 36 amps @ 3500 RPM
Brush Spring Tension: 25 oz.
DELCO-REMY REGULATOR SPECIFICATIONS
Regulator Number: 1118242
Cutout Relay:
Voltage to close points: 6.4
Reverse current to open points: 0-3
Voltage Regulator Setting: 7.4 volts
Current and Voltage Armature Air Gap: .075 inches
Current Regulator Setting: 36 amps
DELCO-REMY STARTING MOTOR SPECIFICATIONS
Part number: 1107931 (rotates clockwise)
Bush Spring Tension, Ounces: 24-28
No Load Test: 65 amps, 5 volts @ 5500 RPM
Torque Test: 600 Amps, 3.0 volts, Torque, Lbs.Ft.: 16
WHEEL ALIGNMENT SPECIFICATIONS
Caster, Degrees
Limits: -1-3/4 to - 2-3/4
Desired: - 2-1/4
Camber, Degrees
Limits: -3/8 to +3/8
Desired: 0
Toe-In, Inches: 1/32 to 3/32
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: 24-1/2 to 25-1/4; Models 67 & 75: 23-1/2 to 24-1/2
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)
5-5/6 @ 04 Camber
|