Legend Coupe V6-3206cc 3.2L SOHC FI (1991)
Positive Crankcase Ventilation: Description and Operation
Fig. 1 PCV System
Some products of combustion escape past the piston rings. These are known as "blowby". These various gasses and contaminants are drawn
into the engine by the PCV system, and burned during normal running.
The PCV valve contains a spring loaded plunger. When the engine starts, the plunger is lifted in proportion to the intake manifold vacuum and
blow-by vapor is drawn directly into the intake manifold.
