ENGINE
EA330-E4, WSM
1-S3
Excessive Lubricant
Oil Consumption
Piston ring's gap facing the same direction Shift ring gap
direction
1-S36
Oil ring worn or stuck Replace 1-S37,
1-S52
Piston ring groove worn Replace the piston 1-S52
Valve stem and valve guide worn Replace 1-S46,
1-S47
Crank pin bearing worn Replace 1-S35,
1-S53
Oil leak Repair –
Fuel Mixed into
Lubricant Oil
Injection pump's plunger worn Replace injection
pump assembly
1-S19,
1-S31
Injection pump broken Replace 1-S19,
1-S31
Water Mixed into
Lubricant Oil
Head gasket defective Replace 1-S28
Cylinder block or cylinder head flawed Replace 1-S44
Low Oil Pressure
(Engine oil pressure)
Engine oil insufficient Replenish G-7
Oil strainer clogged Clean G-8
Relief valve stuck with dirt Clean 1-M10,
1-M11
Relief valve spring weaken or broken Replace 1-M10,
1-M11
Excessive oil clearance of oil filler ring Replace 1-S38,
1-S54
Excessive oil clearance of crank pin bearing Replace 1-S35,
1-S53
Excessive oil clearance of rocker arm bushing Replace 1-S28,
1-S48
Oil passage clogged Clean 1-M10
Different type of oil Use the specified type
of oil
I-4, G-6
Oil pump defective Repair or replace 1-S31,
1-S60
High Oil Pressure
(Engine oil pressure)
Different types of oil Use specified type of
oil
I-4, G-6
Relief valve defective Replace 1-M10,
1-M11
Symptom Probable Cause Solution
Reference
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