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ENGINE SPECS

1953 Ford 239 Flathead V8 Engine Specs

GENERAL SPECIFICATIONS

Model Designation: V8 - B3
Wheel base: 115
Valve Location: In block
Bore and Stroke: 3.1875" x 3.750"
Piston displacement, Cubic Inches: 239
Compression ratio: 7.20
Maximum Brake Horsepower: 110 @ 3800 RPM
Maximum Torque Lbs.Ft. @ RPM: 196 @ 2000
Normal Oil Pressure Pounds: 57

TUNE UP SPECIFICATIONS

Spark Plug Make: Champion H10
Spark Plug Gap, Inch: .030
Firing Order: 15486372 (from front to rear: Right 1-2-3-4; left 5-6-7-8
Ignition Timing: Groove on Pulley
Engine Idle Speed, RPM: Manual shift trans. 475; automatic shift trans. 450
Compression Pressure & Cranking Speed: 125 Min.

PISTON AND RING SPECIFICATIONS

Fitting Pistons with Scale:
    Removed from Above
    Shim thickness to use: .0015
    Pounds Pull on Scale: 6 to 12
Rings: (for tapered bores for minimum clearance fit rings in tightest portion of ring travel)
    Ring Gap, Minimum: Compression: .007
    Ring Gap, Minimum: Oil: .007
Wristpin Diameter, Inch: .7502

VALVE SPECIFICATIONS

Operating Clearance:
    Intake: .014 Cold
    Exhaust: .018 Cold
Valve Seat Angle, degrees: 45
Valve Timing: (BTDC = before top dead center; ATDC = after top dead center)
    Intake opens: 21 degrees BTDC
     Exhaust Closes: 11 degrees ATDC
Valve Spring Pressure Pounds at Inches Length:
     Spring: 41 @ 1.89
Valve Stem Clearance:
    Intake: .001-003
    Exhaust: .0015-.0035
Valve Stem Diameter: Intake: .3410-.3420; Exhaust: .3410-.3420

ENGINE BEARING SPECIFICATIONS

Connecting Rod Bearings:
    Journal Diameter, Inches: 2.138 - 2.139
     Bearing Clearance, Inch: .0005-.003
Main Bearings:
    Journal Diameter, Inches: 2.498 - 2.499
    Bearing Clearance, Inch: .001-.002
    Crankshaft End Play, Inch (taken on rear bearing): .002-.006
    Main Bolt Tension, Lbs.Ft.: 100

CAPACITY DATA

Cooling System:
    Without heater: 22 quarts
    With heater: 23 quarts
    Radiator Cap Relief Pressure: 7
    Thermostats opens: 180
Fuel Tank: 17 gallons (station wagons and couriers 19 gallons)
Engine Oil: 4 quarts
Transmission:
    without overdrive: 3 pints
    with overdrive: 4-1/2
Automatic Transmission: 9-3/4 quarts
Rear Axle: 3-1/2 pints; Station wagon: 3

STARTING MOTOR SPECIFICATIONS

Unit Number: FAD-11002A, FAJ-11002A
Brush Spring Tension: 48-56 ounces
No Load Test: 70 Amps, 6 Volts @ 3000 RPM
Torque Test: 700 Amps, 3.5 Volts, 16 Lbs.Ft. Torque

DISTRIBUTOR SPECIFICATIONS

Distributor part number: 0BA-12127; 8BA-12127
Cam Angle, degrees: 26-28
Breaker Gap, Inch: .015
Condenser Capacity: .21-.25 Mfds.
Breaker Arm Spring Tension: 17-20 Oz.
Distributor Vacuum Advance Data:
    Inches of Vacuum to Start Plunger Movement: .30
    Inches of Vacuum for Full Plunger Travel: 3.7
    Maximum Vaccum Advance, Distributor Degrees: 10-1/2

GENERATOR SPECIFICATIONS

Generator Number: FAA-10000A, FBC-10000A (generator rotates clockwise)
Generator output:
    FAA-10000A 35 Amps @ 850 RPM (engine speed)
    FBC-10000A 35 Amps @ 900 (engine speed)
Brush Spring Tension: 30 oz.

REGULATOR SPECIFICATIONS

Regulator Number: FAC-10505A
Cutout Relay:
    Voltage to close points: 6.3
    Reverse Current to Open Points: 0-8 amps
    Voltage regulator setting: 7.4 volts
    Current regulator settins: 34 amps

ENGINE TIGHTENING SPECIFICATIONS (FT. LBS.)

Spark Plugs: 25-30
Cylinder Head Bolts: 65-70
Intake Manifold: 23-28
Exhaust Manifold: 23-28
Rocker Arm Shaft Bracket: N/A
Rocker Arm Cover: N/A
Connecting Rod Cap Bolts: 45-50
Main Bearing Cap Bolts: 95-105
Flywheel to Crankshaft: 75-85
Vibration Damper or Pulley: 45-55

REAR AXLE AND BRAKE CYLINDER SPECIFICATIONS

Ring Gear & Pinion Backlash, Inch:
    Passenger Car:
.003-.008
    Station Wagon: .003-.008
Drive Pinion Adjustment:
    Passenger Car:
Shims
    Station Wagon: Shims
Drive Pinion Bearing Adjustment:
    Passenger Car:
Spacer
    Station Wagon: Spacer
Axle Shaft End Play, Inch:
    Passenger Car:
None
    Station Wagon: None
Hydraulic Cylinder Bore Sizes, Inch:
    Wheel Cylinder:
          Front:
1-1/8
        Rear: 7/8 (station wagon: 15/16)
    Master Cylinder: 1

WHEEL ALIGNMENT SPECIFICATIONS

Caster, Degrees
    Limits: -1 to + 1/2
    Desired: -1/4
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: 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 spindle support)
    4-3/4 to 5-3/4

·  Understanding Second Chance Garage's Vintage Auto Engine Specs


 
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