Page 798 - 2006 HARLEY FLSTCI SERVICE MANUAL

exits the upper fitting at the rear right side of the crankcase
(A38). See Figure 3-1. Passing through a flexible hose con-
Exiting a hole on the inboard side of the cam support plate,
The oil flows through a passageway in the crankcase and
Also note that a third hose (4) clamped to a fitting behind the
case breather connection provides the pressure balance nec-
3-11
rear lifter cover connects the cam compartment with the oil
tank via a third drilling in the transmission case. This crank-
return channel in the cam support plate (A36). See 3.5 OIL
its two scavenging functions, whereby it simultaneously
The “dual kidney” designation given to the oil pump refers to
scavenge gerotors of the oil pump and is directed through a
Oil sucked up by the scavenge lobes passes through the
draws oil from both the cam and flywheel compartments.
2006 Softail: Engine

OIL RETURN PUMP OPERATION. the oil enters a hole in the crankcase flange (B37). nection (3), the flow of oil runs returns to the oil tank. essary for oil circulation. 45 Figure 3-7. Engine Oil Flow: Chain Guide Bracket

The screen has no regular maintenance 44 43

CHAIN GUIDE BRACKET Three illustrations accompany this explanation. Cam support plate oil flow is shown in Figure 3-2. Bottom end oil flow is shown in Figure 3-6. Chain guide bracket oil flow is shown in Figure 3-7. Oil travels down the center passage of the cam support plate (A26) and enters a passage heading to the rear of the cam As oil exits the inboard side of the cam support plate, it enters a crankcase dowel. The hole contains the chain guide screen NOTE This screen blocks any debris which might enter the chain schedule. However, clean the screen and replace the O-ring every time the engine is disassembled. Oil travels through the right side cra

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