Engine
Horsepower '36-9
110 @ 3900, '40-41 120 @ 3500, '46-48 125 @ 4000
Bore
2.75 267 CU / 2.875 292 CU / 2.9375 305 CI / 2.895 292 CI
Stroke
3.75
Cranking compression 105-125 lbs
Crankshaft
120 deg
Normal oil pressure 40-45 lbs
Offset
of cylinders .250"
Crankshaft
end play .002-.006"
Lift of cam
.292"
Valve spring press. closed 51-57 lbs
Starter
Min
cranking voltage 4.5-5.5
Amperage draw 150-200
Lock
amperage 500
Normal
cranking speed 100
Generator
Rating (amperes)
42
Voltage
7
Regulator
Cutout closing voltage 6.4-6.9 volts
Cutout points open
0-8 amp
Current limiter setting 38-42 amp
Voltage limiter
setting 7.0-7.5 volts
Ignition
Distributor
Dwell
angle
35-38 deg (per contact)
Contact point opening .014"-.016"
Contact
spring tension 20-24 oz
Rotation (rotor end)
LH
Auto advance no brake Starts @ 200 rpm @ 1 deg initial setting 600-12-13 deg
Vacuum
advance 6-1/2 deg adv @ 1000 rpm w/vac
of 1.1"hg applied to brake
Ignition timing
2 deg BTC
Firing order
1-4-9-8-5-2-11-10-3-6-7-12
Condenser capacity .31-.34 MFD
Spark
plug
H-10
Gap
.028"
Carburetor
Float setting
19/32"
Idle screw adj
3/4 to open
Idle rpm
375-400
F/P pressure
1.5-3.5 lbs
F/P volume
1 pt -45 sec @ idle
Vacuum
10"
Capacity
Fuel
19.5 gal
Cooling system
24.5 qts
Crankcase (less filter) 5 qts
Transmission
2 3/4 pts
Transmission w/OD 3 3/4 pts
Differential
4 pts
