Forced crankcase ventilation system

1. Crankcase ventilation system (pic. 16.1) reduces emissions of hydrocarbons into the atmosphere by directing crankcase gases for afterburning into the combustion chambers of the engine. Fresh air from the air cleaner is directed to the crankcase, where it mixes with crankcase gases, and then is directed through the valve into the intake manifold.



2. The ventilation system includes: a ventilation valve, an oil separator filter and hoses connecting these elements to each other and to the intake manifold.

3. Not idling, when the vacuum in the intake manifold is high, the ventilation valve blocks the flow of gases. When the piston tracks are worn, when a large amount of gases breaks into the crankcase and the pressure in it increases, the ventilation system directs the excess gases to the air cleaner. from where they enter the combustion chambers again.

4. Checking and replacing the valve in ventilation is described in chapter 1.