4 Lubrication System
DETROIT DIESEL 53
Fig. 1 - Schematic Diagram of Typical In-Line Engine Lubrication System
temperature. by means of a regulator valve located in
the lower front engine cover. The regulator valve.
located in the pump outlet passage. opens at 51 psi on
In-line engines
and returns
excess oil directly to the crankcase.
Stabilized lubricating oil pressure is maintained within
the engine at all speeds, regardless of the oil
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