Lubrication System - Perkins 1103D XK Systems Operation Testing And Adjusting

KENR6912

Lubrication System

Illustration 7
Flow diagram of the lubrication system for the 1103D engine
(1) Rocker shaft
(2) Camshaft journal
(3) Oil cooler
(4) Oil passage
Lubricating oil from the oil pan flows through a
strainer and a pipe (8) to the suction side of the
engine oil pump (9). Pressure for the lubrication
system is supplied by the oil pump. The crankshaft
gear drives the lower idler gear (12). The lower idler
gear (11) drives the oil pump gear (10). The pump
has an inner rotor and an outer rotor. The axis of
rotation of the rotors are off-center relative to each
other. There is an interference fit between the inner
rotor and the drive shaft.
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(5) Rod bearing journal
(6) Filter head
(7) Oil filter
(8) Oil strainer
The inner rotor has five lobes which mesh with the six
lobes of the outer rotor. When the pump rotates, the
distance increases between the lobes of the outer
rotor and the lobes of the inner rotor in order to create
suction. When the distance decreases between the
lobes, pressure is created.
Systems Operation Section
(9) Oil pump
(10) Oil pump gear
(11) Lower idler gear
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