72-00-10
LUBRICATION
SYSTEM (See Figure
72-00-10)
A.
The engine oil supply is contained in the sump.
The oil is drawn from the sump,
through the oil suction tube, to fill the volume being constantly displaced by the engine
driven, gear type oil pump.
B.
Oil enters the lubrication system through the oil suction screen in the lower left corner
of the crankcase
cover. From the oil screen cavity a cored passage leads to the suction side
of the oil pump.
C.
From the pressure side of the oil pump a cored passage conducts the oil to the pressure
oil screen assembly. From the pressure oil screen a cored passage in the sump conducts the
oil to the left crankcase main oil gallery. The rear end of
the right crankcase main gallery is
aligned with a passage in the crankcase cover which directs pressurized oil
to
the oil pressure
relief valve.
D.
An oil temperature control valve located in the oil cooler adapter regulates oil tempera-
tures within specific limits.
E.
A
scavenge pump is incorporated in the starter adapter to return lubrication oil from the
turbocharger to the crankcase.
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