1933 Plymouth Model PC Detailed Specifications

Detailed specifications, including tolerances and tune-up data are from [Chrysler 1934a] unless otherwise noted.

Axle, FrontTubular
1. King Pin BushingsBronze
  1. Upper47/64" x 1-7/32"
  2. Lower47/64" x 1-7/32"
2. Knuckle thrustBall - Bottom
3. Wheel bearingsTaper-roller
  1. Maximum end play0.003"
4. Toe in1/16"
5. Caster1° - 3°
6. Camber1/4° - 3/4°
7. Pivot Angle9°
Axle, RearSemi-floating
1. Gear ratio4.375 to 1
2. Drive gearSpiral bevel
  1. Diameter and width8-3/4" x 1-3/16"
3. Gear and Pinion backlash0.006" to 0.010"
4. Pinion shaft end play0.0015" to 0.0025"
5. Differential side gear and pinion backlash0.017"
6. Axle shaft diameter outer bearing1-1/4"
Battery
1. Ampere hour capacity84
2. Cells3
3. Plates13
4. Voltage6
5. Specific Gravity
  1. Charged1.250
  2. Discharged1.150
Brake, HandExternal Contracting
1. LocationRear of transmission
2. Drum diameter6"
3. Lining width2"
4. Lining to drum clearance1/16"
Brake, ServiceHydraulic Internal Expanding
1. Drum Diameter10"
2. Shoe width1-1/2"
3. Shoe to drum clearance:
  1. Bottom0.004"
  2. Top0.010"
4. Pedal to floor board free play, maximum1/4" to 3/8"
Camshaft
1. Bearings4
2. Size, diameter and length:
  1. No. 12" x 1-3/32"
  2. No. 21-31/32" x 3/4"
  3. No. 31-15/16" x 3/4"
  4. No. 41-1/4" x 1-1/4"
3. End play0.003" to 0.005"
ClutchSingle plate
1. Driven disc diameter9"
2. Release bearingBall
3. Release lever to bearing clearance3/32"
4. Disc run-out at rim (Maximum)0.015"
5. Spring tension200 lb. to 220 lb. at 1-11/16"
6. Pedal free play1-1/8"
Connecting RodDrop forged I section
1. Between centers8-1/16"
2. BearingsSteel back babbitt insert
  1. Diameter and length1-15/16" x 1"
  2. Clearance0.001" to 0.002"
  3. Side play0.003" to 0.009"
3. Weight variation limit1/4 oz.
4. Alignment limits at pin:
  1. Twist0.001"
  2. Bend0.001"
CoolingPump
1. Capacity3 1/4 Gallons
CrankshaftCounterweighted
1. BearingsSteel back babbitt insert
  1. Diameter and length
    1. No. 12-1/4" x 1-15/64"
    2. No. 22-1/4" x 1-1/32"
    3. No. 32-1/4" x 1-1/32"
    4. No. 42-1/4" x 2-7/8"
  2. Clearance0.001" to 0.002"
  3. End play0.003" to 0.007"
2. Run-out center bearing maximum0.001"
Cylinders
1. Maximum taper before reconditioning0.0015"
2. Maximum out of round before reconditioning0.002"
3. Reconditioning working limits0.0005"
EngineL-head
1. Number of cylinders6
2. Bore3-1/8"
3. Stroke4-1/8"
4. Piston displacement189.8 cu. in.
5. N.A.C.C. horsepower23.43
6. Developed horsepower70
7. Firing Order1-5-3-6-2-4 [Chrysler 1933a 92]
8. Compression Ratio5.5 to 1 [Chrysler 1975 P-24]
9. Compression Ratio5.5 to 1 standard. 6.5 with optional aluminum head. [Chrysler 1975 P-24]
10. Compression pressure90 PSI at cranking speed [SK 2002 27]
FramePressed steel
1. Length151-47/64"
2. Depth of channel5"
3. Flange width2"
4. Thickness7/64"
5. Cross membersRigid X
Fuel SystemPump
1. Tank capacity11 gal.
Generator
1. Maximum cold charging rate at 20 MPH18 amp.
IgnitionFull Automatic
1. Firing Order1-5-3-6-2-4
2. Distributor[NAPA 1937]
  1. EarlyDelco Remy 622H
  2. After engine number PC50365Delco Remy 644H
3. Breaker Points
  1. Breaker point gap0.020"
  2. Cam Angle (Degrees)36° [Sk 2002 27]
  3. Set points to open before top dead center
    1. Small distributor (Type 622H)
      1. Standard head10° Flywheel rotation or 0.040" Piston travel BTDC
      2. High compression head8° Flywheel rotation or 0.025"Piston travel BTDC.
    2. Large distributor (Type 644H)Top dead center
4. Distributor Test Specifications[NAPA 1937]
  1. Delco Remy 622H
    1. Mechanical Advance9° at 1200 RPM.
    2. Contact spring tension19 to 23 oz.
  2. Delco Remy 644H
    1. Mechanical Advance14° at 1200 RPM.
    2. Contact spring tension19 to 23 oz.
5. Spark plugs14 mm. metric
  1. Original PlugsAC S9 [SK 2002 27]
  2. Gap0.025"
Lamps
1. Fuse(s)
  1. Back of Ammeter20 amp. [NAPA 1937]
Lubrication, EnginePressure
1. Oil capacity5 quarts
2. Oil pressure at 30 MPH30 P.S.I. Minimum
Piston PinsFloating in piston and rod
1. Diameter and length55/64" x 2-5/8"
2. Clearance in pistonTight thumb push at normal room temperature
Piston RIngs
1. Number per piston4
2. Width
  1. Upper - Compression1/8" 2 rings
  2. Center - wiper1/8"
  3. Lower - oil control5/32"
3. Gap clearance
  1. Upper - compression0.005" to 0.010"
  2. Center - wiper0.007" to 0.015"
  3. Lower - oil control0.007" to 0.015"
4. Maximum side clearance in groove0.003"
PistonsAluminum T-slot
1. Length3-11/16"
2. Feeler gauge clearance
  1. Head0.022"
  2. Skirt
    1. Top0.003" to 0.0035" measured on thrust side of piston.
    2. Botton0.0015" to 0.002" measured on thrust side of piston.
3. Weight variation limit1/4 oz.
Speedometer Data
1. Tire size5.25/17
2. Axle ratio4.375 to 1
3. Speedometer gear teeth in transmission5-16
SpringsSemi-elliptic
1. Front:
  1. Length and width36" x 1-1/2"
  2. Leaves7
2. Rear:
  1. Length and width53-1/2" x 1-1/2"
  2. Leaves7
Steering Gear
1. Steering wheel17-1/4" three spoke
2. TypeWorm and worm wheel
Tires5.25/17
1. Pressure
  1. Front32 lbs.
  2. Rear32 lbs.
Transmission3 speed
1. High and intermediateConstant mesh with sliding clutch
  1. Type of gearsHelical
2. Second speed gear maximum end play0.002"
3. Free wheel drive shaft bearing end play0.002"
Valves
1. InletChrome nickle
2. ExhaustSilcrome
3. Clearance diameter of opening
  1. Inlet1-5/16"
  2. Exhaust1-5/16"
4. Stem diameter11/32"
  1. Clearance in guide
    1. Inlet0.001" to 0.003"
    2. Exhaust0.003" to 0.005"
5. Seat angle45°
6. Lift5/16"
7. Tappet clearance
  1. Hot engine
    1. Inlet0.005"
    2. Exhaust0.007"
  2. For valve timing
    1. Inlet0.011"
    2. Exhaust0.012"
8. Timing
  1. Inlet opens past top center6°
  2. Piston travel0.014"
  3. Inlet closes past bottom center46°
  4. Duration of inlet220°
  5. Exhaust opens before bottom center42°
  6. Exhaust closes past top center8°
  7. Piston travel0.025"
  8. Duration of exhaust230°
9. Springs
  1. Length, valve closed1-25/32"
  2. Tension, valve closed38 to 43 lbs.
  3. Limit of compression1-15/32"

Plymouth: The First Decade

1933 Plymouth Model PC Detailed Specifications