S&s Cycle - Crankcase - Black - Crankcase - 31-0052
S&s Cycle
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S&s Cycle
S&s Cycle - Crankcase - Black - Crankcase - 31-0052
Crankcase - Black
Crankcase
Cast from A356 T-6 heat-treated aluminum alloy
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Use Timken style sprocket shaft bearings and 1958 and later pinion bearings (will not accept 1957 and earlier flywheels)
Bearing races are all line honed and breather cavity is precision machined to optimize breather timing for maximum oil scavenging
Machined for 3.4375" cylinders and tapped 1/4"-20 for gear covers, oil pump, tappet guides, timer and timer advance
65 models use 65 alloy inner primary
Drilled for 5/16" generator mounting bolts
63-65 models with outside oil lines must use oil port to the rear of the tappet block or oil port in gear cover and use custom oil lines
Generator crankcase gear kit (includes circuit breaker drive gear, idler gear, circuit breaker gear and shims) and shafts must be purchased separately
Made in the U.S.A.
Crankcase
Cast from A356 T-6 heat-treated aluminum alloy
###############################################################################################################################################################################################################################################################
Use Timken style sprocket shaft bearings and 1958 and later pinion bearings (will not accept 1957 and earlier flywheels)
Bearing races are all line honed and breather cavity is precision machined to optimize breather timing for maximum oil scavenging
Machined for 3.4375" cylinders and tapped 1/4"-20 for gear covers, oil pump, tappet guides, timer and timer advance
65 models use 65 alloy inner primary
Drilled for 5/16" generator mounting bolts
63-65 models with outside oil lines must use oil port to the rear of the tappet block or oil port in gear cover and use custom oil lines
Generator crankcase gear kit (includes circuit breaker drive gear, idler gear, circuit breaker gear and shims) and shafts must be purchased separately
Made in the U.S.A.
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