wsm B2420 Workshop Manual page 75

B2420, WSM
Symptom
Low Oil Pressure
High Oil Pressure
Engine Overheated
Probable Cause
Engine oil insufficient
Oil strainer clogged
Oil filter cartridge clogged
Relief valve stuck with dirt
Relief valve spring weaken or broken
Excessive oil clearance of crankshaft bearing
Excessive oil clearance of crankpin bearing
Excessive oil clearance of rocker arm
Oil passage clogged
Different type of oil used and mixed
Oil pump defective
Different type of oil used and mixed
Relief valve defective
Engine oil insufficient
Fan belt broken or tensioned improperly
Coolant insufficient
Radiator net and radiator fin clogged with dust
Inside of radiator corroded
Coolant flow route corroded
Radiator cap defective
Radiator hose damaged
Overload running
Head gasket defective
Incorrect injection timing
Unsuitable fuel used
Replenish
Clean
Replace
Clean
Replace
Replace
Replace
Replace
Clean
Use specified type of
oil
Repair or replace
Use specified type of
oil
Replace
Replenish
Replace or adjust
Replenish
Clean
Clean or replace
Clean or replace
Replace
Replace
Loosen load
Replace
Adjust
Use specified fuel
1-S3
ENGINE
Reference
Solution
Page
G-15
1-S34
1-S15
–
–
1-S52
1-S51
1-S44
–
G-8
1-S55
G-8
–
G-15
G-23
G-8
–
G-28
G-28
1-S13
G-25
–
1-S29
1-S15
G-8
9Y1210436ENS0001US0
KiSC issued 06, 2012 A