the engine's lower front cover.
The oil pump picks up lubricating
oil from the oil pan.
From the oil pump, the oil passes through
short gallery passages in the cylinder block to the oil filter
adapter plate, through the oil filter, and then through the oil
cooler. When the oil leaves the oil cooler, it flows back into the
front cover and cylinder block oil galleries for distribution to the
numerous components requiring lubrication.
Should the oil filter
become clogged, oil will flow directly through a bypass valve located
in the lower cover to the cylinder block galleries. The oil drains
from the cylinder head and other engine parts lead back to the oil
pan. The pressure regulator valve, located in the lower front cover,
maintains steady oil pressure at all engine speeds.
Figure 3.
Lubrication System Diagram.
e. The Cooling System. The engine cooling system consists of a
centrifugal water pump, oil cooler jacket, thermostat and thermostat
housing, water manifold, bypass line, cylinder block water jacket,
radiator, and fan (Fig. 4).
The water pump takes coolant from the
radiator and circulates it through the oil cooler, cylinder block,
and cylinder heads to the thermostat
5
OD1713
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