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Chapter 8 PERIODIC INSPECTION AND MAINTENANCE PROCEDURES
Oil filter and bypass oil filter - Replace
1. Clean around the oil filters.
2. Prepare drip pans, and place them under oil filters
and a bypass oil filter.
3. Remove the center bolt, and remove the oil filter el-
ements.
Note: Cut off the removed oil filter elements and a by-
pass oil filter elements, and check elements for
metal particles. If metal particles are found, con-
tact your Mitsubishi dealer.
4. Thoroughly wipe off oil on the oil filter elements
mounting surface of the filter bracket with a cloth.
5. Prepare the new oil filter elements and bypass oil
filter elements. Check that the gasket is installed to
the case properly.
6. Apply clean engine oil to gasket on the new filter el-
ements.
7. Install oil filter elements and a bypass oil filter ele-
ments to the filter bracket through the cases. When
the case contacts the mounting surface of the filter
bracket, tighten the center bolt for 1/2 to 3/4 turn
(88 N·m {9 kgf·m} [65 lbf·ft]).
Fig. 8-15 Oil filter and bypass oil filter - Replace
Engine Oil for Mixing of Fuel and Water - Inspect
Sample 1 to 2 L [0.26 to 0.53 U.S. gal.] of engine oil, and check for abnormal odor and discoloration to determine
the mixing of fuel and water.
If fuel is mixed with the engine oil, the oil will smell like fuel.
If water is mixed with the engine oil, the oil will be milky white.
If fuel or water is detected in the engine oil, find the cause of the problem, and repair. If the problem cannot be cor-
rected easily, contact a Mitsubishi dealer.
Do not use the filter of which case has dents, as it
may be damaged during operation, and cause oil
leakage that becomes fire hazard.
Do not dent or scratch the case.
Oil filter
element
Bypass
oil filter
element
If the engine continues to operate with engine oil mixed with fuel or water, the engine oil viscosity decreases and
this can cause serious accidents such as seizing of bearings.
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