4-6
Engine Servicing
(1) INNER ROTOR (2) OUTER ROTOR
(1) RELIEF VALVE
(2) OIL PUMP SHAFT (3) OUTER ROTOR
(4) INNER ROTOR
(1) DOWEL PINS
(1) OIL PUMP COVER
(2) BOLT
(1) CRANKSHAFT
(2) BALANCER SHAFT
(1) OUTER ROTOR (2) INNER ROTOR
(3) OIL PUMP SHAFT
(2)
(1)
(2)
(1)
(3)
(1)
(2)
(3)
(4)
(1)
(2)
(1)
(2)
(1)
Assembly
Apply clean engine oil to the feed pump and scav-
enge pump rotors and oil pump shaft.
Install the scavenge pump outer and inner rotor into
the inside of the left crankcase.
Install the relief valve (page 4-2).
Install the feed pump outer and inner rotor out side
of the left crankcase. Install the oil pump shaft by
aligning its flat with the inner rotors.
Install the dowel pins.
Install the oil pump cover and temporarily tighten
the cover bolt.
Place the left crankcase with the oil pump cover side
facing down.
Install the right crankcase side scavenge pump inner
and outer rotor onto the inside of the left crankcase.
Install the balancer shaft and crankshaft to the left
crankcase.
Assemble the crankcase (page 4-79).
Install the oil pump strainer and pump cover bolts
(page 4-3).
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