Category Archives: 7.3L Power Stroke

7.3L Power Stroke – ENGINE OILING – ENGINE LUBRICATION SYSTEM – High Pressure Oiling System

1. High-pressure oiling system supplies oil pressure for fuel injector operation. See Fig. 72. During initial start or cold start, gear-driven high pressure oil pump receives unfiltered engine oil from driver-side       valve lifter oil galley through anti-drain check ball. 2. Once engine starts or during warm engine starts, anti-drain check ball closes and… Read More »