1928 Plymouth 1937 Plymouth Plymouth: The First Decade

1934 Plymouth Model PF Detailed Specifications

Detailed specifications, including tolerances and tune-up data are from [AD 1934a 33] unless otherwise noted.

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Axle, Front  Independent coil springs 

Toe in

 0" to 1/8" 

Caster

 1-1/2° 

Camber

 1/2° 

Pivot Angle

 10° 

Tie rod adjustment

 Threaded sockets 
   
Axle, Rear  Semi-Floating 
   
Battery   

Ampere hour capacity

 84 at 5 amps. discharge 

Cells

 3 

Voltage

 6 

Specific Gravity

  

Charged

 1.250 

Discharged

 1.150 
   
Brake, Hand  External Contracting 

Location

 Rear of transmission 
   
Brake, Service  Hydraulic internal expanding 

Shoe width

 2" 

Shoe to drum clearance:

  

Bottom

 0.005" front, 0.007" rear 

Top

 0.010" 
   
Camshaft   

Bearings

 4, babbitt lined steel 

End play

 0.0015" to 0.0025" 

Drive

 Silent Chain 

Chain Data

 48 links, no adjustment 
   
Connecting Rod   

Clearance

 0.001" to 0.00275" 

Side play

 0.002" to 0.009" 
   
Cooling  Pump 
  

Capacity

 3-1/2 gal. 
   
Crankshaft   

Bearings

 4 Babbitt lined steel inserts 

Clearance

 0.001" to 0.002" 

End play

 0.003" to 0.007" 
   
Engine   

Number of cylinders

 6 

Bore

 3-1/8" 

Stroke

 4-1/8" 

Piston displacement

 201.3 cu. in. 

N.A.C.C. horsepower

 23.44 

Developed horsepower

 77 at 3600 r.p.m. 

Firing Order

 1-5-3-6-2-4 

Compression Ratio

 5.8 to 1 

Compression pressure

 95 PSI at cranking speed [SK 2002 27]
   
Generator  Delco-Remy 734-H 

Maximum cold charging rate at 20 MPH

 15 to 17 amps. 8.0 volts, 1900 r.p.m. 

Maximum hot charging rate

 10 to 13 amps. 7.6 volts, 2100 r.p.m. 
   
Ignition  Full automatic 
 Delco-Remy 622 

Breaker Points

  

Breaker point gap

 0.020" 

Cam Angle (Degrees)

 38° [Sk 2002 27]

Set points to open before top dead center

 9° or 0.32" marks on flywheel 

Spark plugs

 14 mm metric 

Original Plugs

 AC S9 [SK 2002 27]

Gap

 0.025" 
   
Lamps   

Head

 1116 

Park

 63 

Instrument

 63 

Dome

 81 

Stop and Tail

 1158 

Fuse(s)

  

Back of Ammeter

 20 amp. [NAPA 1937]

Dual Horn

 20 amp. (Next to starter) [NAPA 1937]
   
Lubrication, Engine   

Oil capacity

 5 quarts 

Oil pressure at 30 MPH

 30 P.S.I. at 25 M.P.H. 
   
Piston Pins  Floating in piston and rod 

Clearance in piston

 In piston: Tight thumb push at 120°F
In rod: Light thumb push at 70°F
 
   
Piston RIngs   

Number per piston

 4 

Width

  

Upper - Compression

 1/8" 

Center - wiper

 1/8" 

Center - wiper

 1/8" 

Lower - oil control

 5/32" 
   
Pistons  Aluminum 

Feeler gauge clearance

  

Head

 0.022" 

Skirt

  

Botton

 0.0015" 
   
Valves   

Clearance diameter of opening

  

Inlet

 1-5/15" 

Exhaust

 1-5/15" 

Stem diameter

 0.340" to 0.341" 

Seat angle

 45° 

Tappet clearance

  

Hot engine

  

Inlet

 0.005" 

Exhaust

 0.007" 

For valve timing

  

Inlet

 0.011" 

Exhaust

 0.012"