17-8
1. Replacement of Positive Crankcase Ventilation Valve Element
Lubricant and/or sealant
CAUTION
• For information on the element replacement interval, refer
to the element instruction manual. If the element is used be-
yond its replacement interval, it may become clogged,
causing the pressure inside the engine to increase such
that oil leakage occurs.
[Removal]
• Loosen the cap by hand.
CAUTION
• Do not use any tools to loosen the cap. Otherwise, the cap
may become damaged.
[Installation]
• Clean the thread on the cap.
• Lightly smear the O-ring with engine oil and fit it on the cap.
• Securely tighten the cap until it stops slightly above the positive
crankcase ventilation body.
CAUTION
• Be sure to use a genuine Mitsubishi Fuso element. Using an
inappropriate element could result in engine trouble.
• When replacing the element, be sure to replace the O-ring
also.
2. Check for Cracks and Damages in Piping of Blowby Gas Return System
• Inspect the piping of blowby gas return system visually. If there is any cracks or damages, replace the piping.
(See “BLOWBY GAS RETURN SYSTEM”.)
3. Check for Cracks, Damages and Looseness in Piping of Exhaust Gas Recircula-
tion System
• Inspect the exhaust gas recirculation pipe visually. If there is any cracks or damages, replace the pipe. (See “EGR
VALVE, EGR PIPE AND EGR COOLER”.)
• Check for looseness in the exhaust gas recirculation pipe mounting bolts and nuts. If there is looseness, tighten
the bolts and nuts to the specified torque. (See “EGR VALVE, EGR PIPE AND EGR COOLER”.)
Mark Points of application Specified lubricant and/or sealant Quantity
– O-ring Engine oil As required
ON-VEHICLE INSPECTION AND ADJUSTMENT
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