General Description - Isuzu 1999 RODEO Workshop Manual

6G–2
ENGINE LUBRICATION (X22SE 2.2L)

General Description

A gear-type oil pump is directly driven by the crankshaft
and draws oil from the oil pan, via the suction pipe. If then
passes the pressured oil through a full-flow disposable oil
filter, to the main oil gallery in the cylinder Block. An oil
pump pressure relief valve and oil filter bypass valve are
incorporated in the system.
From the main oil gallery in the cylinder block, the cylinder
head and crankshaft main bearings are supplied with oil.
Legend
(1) Oil Strainer
(2) Oil Pump
(3) Relief Valve
(4) Oil Filter
(5) Safety Valve
(6) Oil Gallery
(7) Crankshaft Bearing
(8) Crankshaft
The camshaft bearings and hydraulic tappets are
supplied through the main feed galleries in the cylinder
head. Vent valves allow air to be expelled from the oil
galleries in the cylinder head. The balance shaft journals
are directly fed from the crankshaft main bearings. The
connecting rod bearings are fed via passages in the
crankshaft. the oil returns to the oil pan via passages in
the cylinder block.
(9) Connecting Rod Bearing
(10) Connecting Rod
(11) Piston
(12) Oil Gallery; Cylinder Head
(13) Camshaft
(14) Camshaft Journal
(15) HLV
(16) Vent Valve
(17) Oil Pan
C06RW004