General Description

Crankcase Ventilation System Description:

The compressed combustion gas which escapes past the piston rings into the crankcase is known as blowby gas Blowby gas contains large amounts of CO and HC. The PCV system prevents the blowby gas from being emitted into the atmosphere. The PCV system routes crankcase blowby gas back into the intake system where it becomes part of the combustion process. The Positive Crankcase Ventilation (PCV) system consists of the following components:
^ The PCV valve
^ The crankcase vent (breather) or air inlet tube
^ The air inlet filter or separator (if used)
^ Any hoses or couplers