Crankcase Ventilation System Description
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A spring loaded membrane located in the tower of the camshaft cover maintains crankcase pressure. A baffle plate in the camshaft cover provides for oil separation from the crankcase gases. Crankcase gases are routed back to the air intake system.
Because of the use of a closed crankcase ventilation system, it is normal for slight oil residue to be found in the charge air and intake system.