MANUALS · EMISSION CONTROL [17] · страница 23 из 46 · Открыть оригинал PDF ↗

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CAUTIONS ON INSPECTION

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Inspect the various devices only after completing engine
adjustment:

2Inspect the hoses to make sure there are no disconnec
tions, connectionerros or damage

3Make sure there isno hose, pipeOrport clogging,r
cracks or damage in thehoses and pipes:
When replacing device hoses, always mount the replace-
ment hose in the same position (direction) as the original.
5When finished, check the connections as described in the
service manualor service label:

CRANKCASE EMISSION CONTROL SYSTEM <6G72 Engine>

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POSITIVE CRANKCASE VENTILATION SYSTEM <12Valve Engine>

System Inspection

(1) Disconnect the ventilationhose fromthe air-intake ple-
num, and connect a hand vacuum pump to the ventilation
hose_

(2) At this time; make sure that there is leakage when vacuum
is applied. if there is no leakage when vacuum is applied,
eithercleanthe positive crankcaseventilation valveor
replace it

Positive Crankcase Ventilation (PCV) Valve Inspection

(1) Insertthinrod fromthe nipple sideofthe positive
crankcase ventilation valve, and move it back and forth to
check that the plungermoves

(2) If the plunger does not move: there isblockage inside
the positive crankcase ventilation valve, so clean the valve
or replace it

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