Function of the injection system - ra07016020010x(0010)

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A. Lubrication of injection pump Engines 602.96, 603.96/97 TURBO

A. Lubrication of injection pump

Fig 1: Identifying Annular Gap Between Bearing And Housing

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

The injection pump is connected through an oil bore (arrow) to the engine oil circuit. The oil flows back into the crankcase through the annular gap (x) between bearing and housing.

The O-ring (10) on the flange (1a) acts as a seal. The bore (y) serves to relieve the radial seal of oil.