Positive Crankcase Ventilation: Description and Operation

Fig. 4 Diesel engine positive crankcase ventilation system.:

The closed positive crankcase ventilation system, Fig. 4, consists of a baffle plate located on cam cover on I-Mark or above tappet chamber cover on Pickup, to separate oil particles for blow-by gas, a PCV valve, intake manifold to control pressure in cam cover, PCV pipe, and an oil drain hose and check valve on Pickup models.