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] and [Chrysler 1934b] unless otherwise noted.

  1. Axle, FrontIndependent coil springs
    1. Control Arm Bearings TypeThreaded Bushings
    2. Intermediate Steering Arm Pivot Bearing Type2 Tapered Roller
    3. Steering Knuckles and Arms MaterialChrome Nickel Steel
    4. Steering Knuckle Thrust BearingBall at base of knuckle
    5. King Pin Bushings
      1. MaterialRolled Bronze
      2. Inside Diameter47/64 (18.65 mm.)
      3. Length — Upper and Lower1 1/4 (31.75 mm.)
    6. Tie Rod Joints — Type and MaterialSteel Ball and Super Oilite Socket
    7. Road Clearance8 1/4" (20.95 cm.)
    8. Toe in0" to 1/8"
    9. Caster1-1/2°
    10. Camber1/2°
    11. Pivot Angle10°
    12. Tie rod adjustmentThreaded sockets
  2. Axle, RearSemi-Floating
    1. Housing
      1. MaterialSteel Stamping
      2. Thickness5/32" (3.96 mm.)
    2. Drive Gears
      1. TypeSpiral Bevel
      2. MaterialNickel Alloy Steel
      3. Ratio4.11 to 1
    3. Ring Gear
      1. Diameter8 3/4" (22.23 cm.)
      2. Number of Teeth37
    4. Pinion
      1. Number of teeth9
      2. Bearings
        1. Type2 — Tapered Roller
        2. AdjustmentShims
    5. Differential Bearings
      1. TypeTapered Roller
      2. AdjustmentAdjusting Nuts
    6. Differential Type1-Pinion Bevel Gears
    7. Axle Shaft
      1. MaterialChrome Molybdenum Alloy Steel
      2. Diameter at bearings1 3/8" (34.83 mm.)
      3. Bearing Type2 — Tapered Roller
    8. Lubricant Capacity3 1/4 Pints (1.54 liters)
    9. Road Clearance8 1/8" (20.64 cm.)
  3. Battery
    1. Ampere hour capacity84 at 5 amps. discharge
    2. Cells3
    3. Number of plates13
    4. Voltage6
    5. Terminal GroundedPositive
    6. Specific Gravity
      1. Charged1.250
      2. Discharged1.150
  4. Brake, Service
    1. Location4 Wheels
    2. TypeHydraulic Internal Expanding
    3. Drum
      1. MaterialSteel Stamping
      2. Internal Diameter10" (25.40 cm.)
    4. Lining
      1. TypeMolded Asbestos
      2. Width1 1/2" (38.1 mm)
      3. Thickness3/16" (4.76 mm.)
      4. Total Length Per Brake15 25/32" (40.1)
      5. Total Lining Area Per Car94 11/64 sq. in. (611.3 sq cm.)
    5. Shoe to drum clearance:
      1. Bottom0.005" front, 0.007" rear
      2. Top0.010"
  5. Brake, Hand
    1. LocationRear of transmission
    2. TypeMechanical External Contracting
    3. Drum
      1. MaterialSteel Stamping
      2. Outside Diameter6" (15.24 cm.)
    4. Lining
      1. MaterialWoven Asbestos
      2. Width2" (50.8 mm.)
      3. Thickness5/32" (3.97 mm.)
      4. Length18 13/32" (46.75 cm.)
  6. Camshaft
    1. TypeIntegral Cams and Distributor Gear
    2. MaterialSpecial Cast Iron, Chilled Cams
    3. Bearings
      1. Number Used4
      2. Material
        1. All But RearBabbitt Lined Steel
        2. RearCast Iron, Machined in Block
      3. Sizes (Inside Dia. and Length)
        1. 1 (Front)2" (50.8 mm.) Dia. 1 3/32" (27.78 mm.) Long
        2. 21 31/32" (50.01 mm.) Dia. 3/4" (19.05 mm.) Long
        3. 31 15/16" (48.21 mm.) Dia. 3/4" (19.05 mm.) Lont
        4. 41 1/4" (31.75 mm.) Dia. 1 1/4" (31.75 mm.) Long
    4. Thrust Bearing
      1. TypeSteel Plate
      2. LocationFront End
    5. End play0.0015" to 0.0025"
    6. DriveSilent Chain
    7. Chain Data48 links, no adjustment
  7. Carburetor
    1. TypePlain Tube, Downdraft
    2. Nominal Size (S.A.E.)1 1/4" (31.75 mm.)
    3. AdjustmentsIdle Needle Valve, Accelerating Pump Stroke
    4. Fast Idle Control for StartingOperated by Choke
    5. Choke ControlManual (Automatic Special Equipment)
    6. Air Cleaner — TypeOiled Copper Gauze
    7. Intake SilencerIntegral with Air Cleaner
    8. Manifold Heat ControlSeasonal (Manual)
  8. Clutch
    1. TypeKnife Edge, 9" Single Dry Plate
    2. Cushinging MethodTorsion Springs
    3. Release Bearing — TypeBall Thrust
    4. Number of Clutch Springs6
    5. Facing TypeMolded Asbestos
    6. Automatic ClutchNone
  9. Connecting Rod
    1. TypeI-Beam Section
    2. MaterialDrop Forged Steel
    3. Length Between Centers7 1516" (20.16 cm.)
    4. Crankpin Bearing
      1. TypePrecision Removable
      2. MaterialBabbit Lined Steel
      3. Size1 15/16" (49.21 mm.) Dia. 1" (25.40 mm.) Long
      4. ShimsNone
      5. Clearance0.001" to 0.00275"
      6. Side play0.002" to 0.009"
    5. Piston Pin Bearing
      1. TypeBronze Bushing
      2. Size55/64" (21.82 mm.) Dia. 1 1/8" (28.58 mm.) Long
  10. Cooling
    1. TypePump
    2. Pump
      1. TypeCentrifugal
      2. DriveV Belt
      3. Drive AdjustmentBy Moving Generator
    3. Fan
      1. LocationOn Water Pump Shaft
      2. DriveV Belt
      3. Drive AdjustmentBy Moving Generator
      4. Number of Blades4
      5. Outside Diameter18" (44.72 cm.)
    4. Radiator CoreCellular
    5. Circulation ControlBy-Pass Thermostat (special equipment)
    6. Thermostat LocationCylinder Head Outlet Elbow
    7. Heat Indicator TypeLiquid
    8. Capacity3 1/2 US Gallons (15.14 Liters)
  11. Crankshaft
    1. TypeCounterweighted
    2. Length28 9/16" (72.55 cm.)
    3. BalanceStatic and Dynamic
    4. Counterweights
      1. TypeIntegral
      2. Number7
    5. Impulse Neutralizer — TypeInertia, Rubber Insulated
    6. Main Bearings
      1. Number Used4
      2. TypeRemovable Babbitt Lined Steel
      3. Sizes (Inside Dia. and Length)
        1. 1 (Front)2 1/4" (57.1 mm.) Dia. 1 15/64" (31.3 mm.) Long
        2. 22 1/4" (57.1 mm.) Dia. 1 1/31" (26.2 mm.) Long
        3. 32 1/4" (57.1 mm.) Dia. 1 1/31" (26.2 mm.) Lont
        4. 42 1/4" (57.1 mm.) Dia. 1 7/8" (47.6 mm.) Long
      4. Clearance0.001" to 0.002"
    7. Transmission Drive Pinion Pilot Bearing
      1. TypeOil-less Bronze Bushing
      2. Diameter3/4" (19.05 mm.)
    8. Thrust Taken ByRear Bearing
    9. End play0.003" to 0.007"
    10. Total Main Bearing Length5 11/64" (131.4 mm.)
    11. Total Main Bearing Area36.56 sq. in. (235.86 sq. cm.)
  12. Drive TypeHotchkiss
  13. Engine
    1. Valve ArrangementL-Head
    2. Number of cylinders and type of casting6 - Enbloc
    3. Bore3-1/8" (79.3 mm.)
    4. Stroke4-3/8" (111.1 mm.)
    5. Piston displacement201.31 cu. in.(3302.07 cc.)
    6. N.A.C.C. horsepower23.44
    7. Firing Order1-5-3-6-2-4
    8. Standard
      1. Cylinder Head MaterialCast Iron
      2. Compression Ratio5.8 to 1
      3. Developed horsepower77 at 3600 r.p.m.
      4. Compression pressure95 PSI at cranking speed [SK 2002 27]
    9. Special Equipment
      1. Cylinder Head MaterialAluminum
      2. Compression Ratio6.5 to 1
      3. Developed horsepower82 at 3600 r.p.m.
    10. Mounting TypeFloating Power
    11. Crankcase Construction
      1. UpperIntegral with Cylinder Block
      2. Lower (Oil Pan)Steel Stamping
    12. Cylinder FinishReamed and Honed
  14. Flywheel
    1. MaterialGray Iron
    2. Starter Ring Gear MaterialSteel
  15. Frame
    1. TypeRigid X Double Drop
    2. Kick-Up (Sill LIne)
      1. Front2 3.8" (6.03 cm.)
      2. Rear5 13/16" (14.76 cm.)
    3. Side Member
      1. SectionChannel and Box
      2. Thickness of Metal7/64" (2.77 mm)
      3. Maximum Depth5" (12.7 cm.)
      4. Flange Width2" (5.08 cm.)
  16. Free WheelingNone
  17. Fuel System
    1. TypePump
    2. Pump TypeCamshaft Eccentric
    3. Gauge TypeElectric
    4. Tank capacity11 gal.
  18. GeneratorDelco-Remy 734-H
    1. TypeBalanced Armature
    2. DriveV Belt
    3. Relay TypeCutout
    4. Maximum cold charging rate at 20 MPH15 to 17 amps. 8.0 volts, 1900 r.p.m.
    5. Maximum hot charging rate10 to 13 amps. 7.6 volts, 2100 r.p.m.
  19. Height Overall
    1. Sedans68 1/4" (173.3 cm.)
    2. Coupes65 1/8" (165.4 cm.)
  20. Horn
    1. TypeVibrator
    2. LocationUnder Hood
  21. IgnitionFull automatic
    1. Firing Order1-5-3-6-2-4
    2. DistributorDelco Remy 644K [NAPA 1937]
    3. Breaker Points
      1. Breaker point gap0.020"
      2. Cam Angle (Degrees)35° [Sk 2002 27]
      3. Set points to open before top dead center3° or 0.004" marks on impulse neutralizer
    4. Distributor Test Specifications
      1. Delco Remy 644K[NAPA 1937]
        1. Mechanical Advance16° at 1200 RPM.
        2. Contact spring tension19 to 23 oz.
    5. Spark plugs14 mm metric
      1. Standard HeadAC S9
      2. Aluminum HeadSL9
      3. Gap0.025"
  22. Length Overall
    1. Without Bumpers
      1. Sedans163 7/8" (4416.24 cm.)
      2. Coupes157 1/8" (399.09 cm.)
    2. With Bumpers
      1. Sedans181 7/16" (460.85 cm.)
      2. Coupes176" (447.04 cm.)
  23. Lamps
    1. Light Switch LocationInstrument Panel
    2. Headlights
      1. TypeTwo Filament Bulb and Reflector
      2. Mazda Number1110
      3. Candlepower
        1. High Beam21 cp.
        2. Low Beam21 cp.
      4. LocationBracket on Front Fenders
      5. Dimmer Switch LocationToe Board
    3. Parking Lights
      1. TypeAuxiliary
      2. LocationIn Headlamp
      3. Mazda Number63
      4. Candlepower3 cp.
    4. Tail Light
      1. TypeCombined Stop and Tail
      2. LocationRear Fender
      3. Stop Light ControlSwitch on Master Brake Cylinder
      4. Mazda Number1158
      5. Candlepower
        1. Stop Light21 cp.
        2. Tail Light3 cp.
    5. Instrument
      1. TypeIndirect
      2. Mazda Number63
      3. Candlepower3 cp.
    6. Dome
      1. Mazda Number81
      2. Candlepower6 cp.
    7. Fuse(s)
      1. Back of Ammeter20 amp. [NAPA 1937]
      2. Generator Field6 amp. [NAPA 1937]
      3. Dual Horn20 amp. (Next to starter) [NAPA 1937]
  24. Lubrication, Chassis
    1. TypePressure Gun
  25. Lubrication, Engine
    1. TypeForced Feed
    2. Crankshaft Main BearingsDirect Oil Leads
    3. Connecting Rod BearingsDirect Oil Leads
    4. Camshaft BearingsDirect Oil Leads
    5. Timing ChainDirect Oil Leads
    6. Oil capacity5 quarts
    7. Oil pressure at 30 MPH30 P.S.I. at 25 M.P.H.
  26. Muffler
    1. TypeBaffle
  27. Oil Pump
    1. TypeGear
    2. DriveFrom Camshaft Spiral Gear
    3. Oil Filter TypeRenewable Cartridge
    4. Oil Capacity5 Quarts (4.73 Liters)
    5. Summer
      1. Recommended SAE Viscosity30
      2. Change Interval1500 Miles (2400 KM)
    6. Winter
      1. Recommended SAE Viscosity20W or 10W
      2. Change Interval1000 Miles (1600 KM)
    7. Oil Level Indicator
      1. TypeCalibrated Rod
      2. LocationLeft Side of Crankcase
  28. Pistons
    1. TypeT-Slot Cam Ground
    2. MaterialAluminum Alloy
    3. Length3 11/16" (93.7 mm.)
    4. Length from Top to Pin Center2&auot; (50.8 mm.)
    5. Feeler gauge clearance
      1. Head0.022"
      2. Skirt
        1. Botton0.0015"
  29. Piston PinsFloating in piston and rod
    1. TypeFloating in Piston and Rod
    2. MaterialAlloy Steel
    3. Diameter55/64" (21.82 mm.)
    4. Clearance in piston
      1. In pistonTight thumb push at 120°F
      2. In rodLight thumb push at 70°F
  30. Piston Rings
    1. Number per piston4
    2. Location on PistonAbove Piston Pin
    3. MaterialGray Iron
    4. Compression Rings (Top Rings)3
      1. Type2 Plain Concentric and one Recessed Concentric
      2. Width1/8" (3.18 mm.)
      3. Oil Wiper RingsRecess in Lower Compression Rings
    5. Oil Control Rings (Lower Rings)1
      1. TypeSlotted
      2. Width5/32 (3.97 mm.)
  31. Propeller Shaft
    1. TypeTubular
    2. Diameter2" (50.8 mm.)
  32. Shock Absorbers
    1. FrontHydraulic Double Acting
    2. RearHydraulic Single Acting
  33. Springs
    1. Front
      1. TypeCoil
      2. Coil Free Length (minimum)12 1/8" (30.8 cm)
      3. Outside Diameter5.1" (12.95 cm.)
      4. Thickness of material11/16" (17.47 mm.)
    2. Rear
      1. TypeSemi Elliptic
      2. InsertsNone
      3. Length53 1/2" (135.89 cm.)
      4. Width1 1/2" (38.1 mm.)
      5. Number of Leaves7
      6. Mounting
        1. FrontRubber Cored Bushing
        2. RearSilent U Threaded Shackle
  34. Starter
    1. Type6 Volt Positive Shift
    2. Operated byPedal on Toe Board
    3. No. of Teeth on Gear9
    4. Rear Ratio to Flywheel Ring Gear16.22 to 1
  35. Steering Gear
    1. TypeWorm and Roller
    2. Ratio18.2 to 1
    3. Worm Thrust BearingDouble Tapered Roller
    4. Wheel
      1. Type3 Spoke Steel Reinforced Composition
      2. Outside Diamter17 1/4" (43.81 cm.)
  36. Timing Drive
    1. TypeSilent Chain
    2. Number of Sprockets2
    3. AdjustmentNone
    4. Number of Links48
  37. Tires
    1. TreadNon-Skid
    2. Standard — Wire Wheels
      1. Size5.25-17
      2. Plys4
      3. Inflation
        1. Front32
        2. Rear32
    3. Special Equipment — Wood Wheels
      1. Size5.25-20
      2. Plys4
      3. Inflation
        1. Front32
        2. Rear32
    4. Special Equipment — Air Wheels
      1. Size6.00-17
      2. Plys4
      3. Inflation
        1. Sedans
          1. Front22
          2. Rear28
        2. Coupe
          1. Front22
          2. Rear26
  38. Transmission
    1. TypeAll Silent Helical Sliding Gear
    2. LocationUnit with Engine
    3. Number of Forward Speeds3
    4. Ratios — Engine to Propeller Shaft
      1. 3rd1.00 to 1
      2. 2nd1.55 to 1
      3. 1st2.81 to 1
      4. Reverse3.61 to 1
    5. Ratios — Final Drive
      1. With 4.11 to 1 Ratio Rear Axle
        1. 3rd4.11 to 1
        2. 2nd6.37 to 1
        3. 1st11.54 to 1
        4. Reverse14.84 to 1
    6. Bearings
      1. Pinions ShaftBall
      2. Main Shaft PilotRoller
      3. CountershaftRoller
      4. Idler ShaftBronze Bushings
      5. Rear BearingBall
    7. Lubricant Capacity2 3/4 Pints (1.3 Liters)
  39. Tread
    1. Front56 1/8" (142.56 cm.)
    2. Rear56 3/8" (143.19 cm.)
  40. Universal Joints
    1. TypeBall and Trunnion
    2. BearingsRoller
  41. Valves
    1. TypePoppet
    2. LocationRight Side of Engine
    3. Material
      1. InletChrome Nickel Steel
      2. ExhaustSilicrome Steel
    4. Port Diameter1 5/16" (32.3 mm.)
    5. Stem diameter0.340" to 0.341"
    6. Valve Lift5/16" (7.94 mm.)
    7. Valve Guides
      1. TypeRemovable
      2. MaterialCast Iron
    8. Valve Seats
      1. Inlet
        1. TypeMachined in Block
        2. Seat Angle45°
      2. Exhaust
        1. TypeInserted
        2. MaterialSpecial Alloy
        3. Seat Angle45°
    9. Valve Springs
      1. Spring Pressure
        1. Inlet Valve
          1. Opened77 to 85 lbs.
          2. Closed34 to 38 lbs.
        2. Exhaust Valve
          1. Opened77 to 85 lbs.
          2. Closed34 to 38 lbs.
    10. Valve Tappets
      1. TypeMushroom
      2. Material
        1. StemSteel
        2. HeadChilled Cast Iron
      3. Stem Diameter5/8" (15.87 mm.)
      4. Tappet clearance
        1. Hot engine
          1. Inlet0.005"
          2. Exhaust0.007"
        2. For valve timing
          1. Inlet0.011"
          2. Exhaust0.012"
    11. Valve Timing
      1. Inlet Opens6° After Top Center
      2. Inlet Closes46° After Bottom Center
      3. Exhaust Opens42° Before Bottom Center
      4. Exhaust Closes8° After Top Center
  42. Wheelbase108" (274.3 cm.)
  43. Wheels
    1. Rim TypeDrop Center
    2. Standard
      1. Spoke TypeWire
      2. Rim Diameter17"
      3. Rim Width3"
    3. Special Equipment — Wood
      1. Spoke TypeWood
      2. Rim Diameter20"
      3. Rim Width3 1/4"
    4. Special Equipment — Wire Airwheel
      1. Spoke TypeWire
      2. Rim Diameter16"
      3. Rim Width4"
    5. Special Equipment — Steel Airwheel
      1. Spoke TypeSteel
      2. Rim Diameter16"
      3. Rim Width4"
    6. Hub Bold Circle Diameter4 1/2"
    7. Bearings, Front Wheels, TypeTapered Roller
  44. Width Overall
    1. Across Front Fenders67 5/8"
    2. Across Rear Fenders66 5/8"