Plymouth: The First Decade
1933 Plymouth Model PC Detailed Specifications
Detailed specifications, including tolerances and tune-up data are from [Chrysler 1934a] unless otherwise noted.
| Item | Reference | |
|---|---|---|
 |
|
|
| Axle, Front | Tubular | |
King Pin Bushings | Bronze | |
Upper | 47/64" x 1-7/32" | |
Lower | 47/64" x 1-7/32" | |
Knuckle thrust | Ball - Bottom | |
Wheel bearings | Taper-roller | |
Maximum end play | 0.003" | |
Toe in | 1/16" | |
Caster | 1° - 3° | |
Camber | 1/4° - 3/4° | |
Pivot Angle | 9° | |
| Axle, Rear | Semi-floating | |
Gear ratio | 4.375 to 1 | |
Drive gear | Spiral bevel | |
Diameter and width | 8-3/4" x 1-3/16" | |
Gear and Pinion backlash | 0.006" to 0.010" | |
Pinion shaft end play | 0.0015" to 0.0025" | |
Differential side gear and pinion backlash | 0.017" | |
Axle shaft diameter outer bearing | 1-1/4" | |
| Battery | ||
Ampere hour capacity | 84 | |
Cells | 3 | |
Plates | 13 | |
Voltage | 6 | |
Specific Gravity | ||
Charged | 1.250 | |
Discharged | 1.150 | |
| Brake, Hand | External Contracting | |
Location | Rear of transmission | |
Drum diameter | 6" | |
Lining width | 2" | |
Lining to drum clearance | 1/16" | |
| Brake, Service | Hydraulic Internal Expanding | |
Drum Diameter | 10" | |
Shoe width | 1-1/2" | |
Shoe to drum clearance: | ||
Bottom | 0.004" | |
Top | 0.010" | |
Pedal to floor board free play, maximum | 1/4" to 3/8" | |
| Camshaft | ||
Bearings | 4 | |
Size, diameter and length: | ||
No. 1 | 2" x 1-3/32" | |
No. 2 | 1-31/32" x 3/4" | |
No. 3 | 1-15/16" x 3/4" | |
No. 4 | 1-1/4" x 1-1/4" | |
End play | 0.003" to 0.005" | |
| Clutch | Single plate | |
Driven disc diameter | 9" | |
Release bearing | Ball | |
Release lever to bearing clearance | 3/32" | |
Disc run-out at rim (Maximum) | 0.015" | |
Spring tension | 200 lb. to 220 lb. at 1-11/16" | |
Pedal free play | 1-1/8" | |
| Connecting Rod | Drop forged I section | |
Between centers | 8-1/16" | |
Bearings | Steel back babbitt insert | |
Diameter and length | 1-15/16" x 1" | |
Clearance | 0.001" to 0.002" | |
Side play | 0.003" to 0.009" | |
Weight variation limit | 1/4 oz. | |
Alignment limits at pin: | ||
Twist | 0.001" | |
Bend | 0.001" | |
| Cooling | Pump | |
Capacity | 3 1/4 Gallons | |
| Crankshaft | Counterweighted | |
Bearings | Steel back babbitt insert | |
Diameter and length | ||
No. 1 | 2-1/4" x 1-15/64" | |
No. 2 | 2-1/4" x 1-1/32" | |
No. 3 | 2-1/4" x 1-1/32" | |
No. 4 | 2-1/4" x 2-7/8" | |
Clearance | 0.001" to 0.002" | |
End play | 0.003" to 0.007" | |
Run-out center bearing maximum | 0.001" | |
| Cylinders | ||
Maximum taper before reconditioning | 0.0015" | |
Maximum out of round before reconditioning | 0.002" | |
Reconditioning working limits | 0.0005" | |
| Engine | L-head | |
Number of cylinders | 6 | |
Bore | 3-1/8" | |
Stroke | 4-1/8" | |
Piston displacement | 189.8 cu. in. | |
N.A.C.C. horsepower | 23.43 | |
Developed horsepower | 70 | |
Firing Order | 1-5-3-6-2-4 | [Chrysler 1933a 92] |
Compression Ratio | 5.5 to 1 | [Chrysler 1975 P-24] |
Compression Ratio | 5.5 to 1 standard. 6.5 with optional aluminum head. | [Chrysler 1975 P-24] |
Compression pressure | 90 PSI at cranking speed | [SK 2002 27] |
| Frame | Pressed steel | |
Length | 151-47/64" | |
Depth of channel | 5" | |
Flange width | 2" | |
Thickness | 7/64" | |
Cross members | Rigid X | |
| Fuel System | Pump | |
Tank capacity | 11 gal. | |
| Generator Maximum cold charging rate at 20 MPH | 18 amp. | |
| Ignition | Full Automatic | |
Breaker Points | ||
Breaker point gap | 0.020" | |
Cam Angle (Degrees) | 36° | [Sk 2002 27] |
Set points to open before top dead center | Small distributor (Type 622H): Standard head: 10° Flywheel rotation or 0.040" Piston travel BTDC. High compression head: 8° Flywheel rotation or 0.025" Piston travel BTDC. Large distributor (Type 644H): Top dead center | |
Spark plugs | 14 mm. metric | |
Original Plugs | AC S9 | [SK 2002 27] |
Gap | 0.025" | |
| Lubrication, Engine | Pressure | |
Oil capacity | 5 quarts | |
Oil pressure at 30 MPH | 30 P.S.I. Minimum | |
| Piston Pins | Floating in piston and rod | |
Diameter and length | 55/64" x 2-5/8" | |
Clearance in piston | Tight thumb push at normal room temperature | |
| Piston RIngs | ||
Number per piston | 4 | |
Width | ||
Upper - Compression | 1/8" 2 rings | |
Center - wiper | 1/8" | |
Lower - oil control | 5/32" | |
Gap clearance | ||
Upper - compression | 0.005" to 0.010" | |
Center - wiper | 0.007" to 0.015" | |
Lower - oil control | 0.007" to 0.015" | |
Maximum side clearance in groove | 0.003" | |
| Pistons | Aluminum T-slot | |
Length | 3-11/16" | |
Feeler gauge clearance | ||
Head | 0.022" | |
Skirt | ||
Top | 0.003" to 0.0035" measured on thrust side of piston. | |
Botton | 0.0015" to 0.002" measured on thrust side of piston. | |
Weight variation limit | 1/4 oz. | |
| Speedometer Data | ||
Tire size | 5.25/17 | |
Axle ratio | 4.375 to 1 | |
Speedometer gear teeth in transmission | 5-16 | |
| Springs | Semi-elliptic | |
Front: | ||
Length and width | 36" x 1-1/2" | |
Leaves | 7 | |
Rear: | ||
Length and width | 53-1/2" x 1-1/2" | |
Leaves | 7 | |
| Steering Gear Steering wheel | 17-1/4" three spoke | |
| Worm and worm wheel | ||
| Tires | 5.25/17 | |
Pressure | ||
Front | 32 lbs. | |
Rear | 32 lbs. | |
| Transmission | 3 speed | |
High and intermediate | Constant mesh with sliding clutch | |
Type of gears | Helical | |
Second speed gear maximum end play | 0.002" | |
Free wheel drive shaft bearing end play | 0.002" | |
| Valves | ||
Inlet | Chrome nickle | |
Exhaust | Silcrome | |
Clearance diameter of opening | ||
Inlet | 1-5/16" | |
Exhaust | 1-5/16" | |
Stem diameter | 11/32" | |
Clearance in guide | ||
Inlet | 0.001" to 0.003" | |
Exhaust | 0.003" to 0.005" | |
Seat angle | 45° | |
Lift | 5/16" | |
Tappet clearance | ||
Hot engine | ||
Inlet | 0.005" | |
Exhaust | 0.007" | |
For valve timing | ||
Inlet | 0.011" | |
Exhaust | 0.012" | |
Timing | ||
Inlet opens past top center | 6° | |
Piston travel | 0.014" | |
Inlet closes past bottom center | 46° | |
Duration of inlet | 220° | |
Exhaust opens before bottom center | 42° | |
Exhaust closes past top center | 8° | |
Piston travel | 0.025" | |
Duration of exhaust | 230° | |
Springs | ||
Length, valve closed | 1-25/32" | |
Tension, valve closed | 38 to 43 lbs. | |
Limit of compression | 1-15/32" |