Kubota EA330-E4 Series Workshop Manual page 68

EA330-E4, WSM
Symptom
Excessive Lubricant
Oil Consumption
Fuel Mixed into
Lubricant Oil
Water Mixed into
Lubricant Oil
Low Oil Pressure
(Engine oil pressure)
High Oil Pressure
(Engine oil pressure)
Probable Cause
Piston ring's gap facing the same direction
Oil ring worn or stuck
Piston ring groove worn
Valve stem and valve guide worn
Crank pin bearing worn
Oil leak
Injection pump's plunger worn
Injection pump broken
Head gasket defective
Cylinder block or cylinder head flawed
Engine oil insufficient
Oil strainer clogged
Relief valve stuck with dirt
Relief valve spring weaken or broken
Excessive oil clearance of oil filler ring
Excessive oil clearance of crank pin bearing
Excessive oil clearance of rocker arm bushing
Oil passage clogged
Different type of oil
Oil pump defective
Different types of oil
Relief valve defective
Shift ring gap
direction
Replace
Replace the piston
Replace
Replace
Repair
Replace injection
pump assembly
Replace
Replace
Replace
Replenish
Clean
Clean
Replace
Replace
Replace
Replace
Clean
Use the specified type
of oil
Repair or replace
Use specified type of
oil
Replace
1-S3
ENGINE
Reference
Solution
Page
1-S36
1-S37,
1-S52
1-S52
1-S46,
1-S47
1-S35,
1-S53
–
1-S19,
1-S31
1-S19,
1-S31
1-S28
1-S44
G-7
G-8
1-M10,
1-M11
1-M10,
1-M11
1-S38,
1-S54
1-S35,
1-S53
1-S28,
1-S48
1-M10
I-4, G-6
1-S31,
1-S60
I-4, G-6
1-M10,
1-M11
KiSC issued 05, 2015 A