MANUALS · EMISSION CONTROL [17] · страница 26 из 46 · Открыть оригинал PDF ↗
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CRANKCASE EMISSION CONTROL SYSTEM <4G64 Engine>
GEM12O
POSITIVE CRANKCASE VENTILATION SYSTEM System Inspection
(1) Disconnect the ventilation hose from the positive crank-
case ventilation valveThen, remove the positive crank-
case ventilation valve from the rocker cover and reconnect
it to the ventilationhose
(2) Idle the engine and put a finger to the open end of positive
crankcaseventilationvalvetomakesurethatintake
manifoldvacuum is felton thefinger.
NOTE
At this time, the plunger inside the positive crankcase
ventilation valvemovesback and forth;
(3) If vacuum is not felt on finger, clean the positive crankcase
ventilation valve and ventilation hose in cleaning solvent or
replace if necessary_
Positive Crankcase Ventilation (PCV) Valve Inspection
(1)Insertthin stick into the positive crankcase ventilation
valve from the threaded side to check that the plunger
moves
(2) If the plunger does notmove, the positivecrankcase
ventilation valve is clogged,Clean it or replace
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