Yanmar YM276 Service Manual page 146

COOLING SYSTEM
20-25-1
DIAGNOSING MALFUNCTIONS
Engine Overheats
Loose fan belt
Dirty radiator or grille screen
LOW coolant level
.
L o w oil level
.
Improper operation
Defective head gasket
.
Incorrect timing
.
Faulty thermostat
.
Faulty radiator cap
Faulty water pump
.
Corroded coolant passages
Low Coolant Level
.
Improper maintenance
Improper operation
Damaged radiator
Water p u m p seal leakage
Leakage
Faulty radiator cap
SME2760111a04 YM276
end
2760
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