Oiling System

Many of the moving parts on an engine are only separated from other metal parts by a thin film of oil. With no oil, the parts would build up so much friction that they can weld themselves to each other. A normal street engine uses a relatively straightforward oil system. The oil collects in a pan at the bottom of the motor, below the crankshaft. A pickup tube in the oil pan draws the oil into a pump, which sends the oil through a filter and then through a series of passages to lubricate the engine.

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