B23E Engine (Canada)

Fig. 17 POSITIVE CRANKCASE VENTILATION SYSTEM (CANADA ONLY):

The crankcase emission controls prevent crankcase gases from being released into the atmosphere. Instead, the gases are routed to the intake manifold. Crankcase gases are removed from the crankcase by positive crankcase ventilation (PCV). Intake manifold vacuum draws the crankcase gases into the intake air, where they get ignited in the combustion process. Fig. 17.


COMPONENTS:
----------------

Oil Trap And Flame Guard System:

FLAME GUARD
Prevents a possible backfire from entering the crankcase. Should the backfire enter the crankcase, it could ignite the blow-by gases. Periodic cleaning or replacement (see "MAINTENANCE PROCEDURES") of the flame guard helps prevent crankcase over-pressure. Fig. 8.

Fig. 9 P.C.V. NIPPLE:

NIPPLE
Regulates the crankcase gas flow and limits the maximum crankcase vacuum. Fig. 9.

Oil Trap And Flame Guard:

OIL TRAP
Separates oil from gases and therefore reduces oil consumption and emissions. An additional benefit is, more effective control of the vacuum in the crankcase. Fig. 10.