Engine Oil Filter

TM 5-4320-234-34

on the exterior of the engine to remove from the engine

3-14. Engine Oil Filter

oil any impurities and particles that could cause engine

wear. This filter has a replaceable cartridge.

Removal.

The engine oil pressure is regulated by a

(1) Drain the oil from the engine (TM 5-

relief valve mounted in the engine cylinder block. The

4320-234-12, para 3-3).

valve consists mainly of a spring-loaded, spool-type

valve which is seated in a bore in the block. The greater

(2) Disconnect the electrical lead from the

the spring pressure is which loads the valve, the greater

oil pressure sender on the filter piping.

the oil pressure in the system.

The pressure is

increased by adding pressure-adjusting washers

(3) Remove the oil filter and related parts

between the spring and the valve to increase spring

from the engine as shown in figure 3-4.

force against the valve. Oil pressure adjustment is

3-5