Section III. ENGINE BASE AND OIL PUMP

TM 5-4320-237-15

Figure 40. Valves and valve springs, removal and

installation.

ENGINE BASE AND OIL PUMP

Section III.

the trough. A projection on the connecting

93. General

rod. cap dips into the oil and causes splashing

with every revolution of the crankshaft. This

The engine base covers the bottom of the

splashing lubricates all internal working parts

engine and provides a mounting for the en-

of the engine. The power to operate the oil

gine. The oil pump and trough-like body are

pump is derived from the crankshaft through

mounted on the base within the engine. The

a push rod.

oil pump maintains a constant oil level in