Oil Is In Coolant (Or Coolant Spurts Back Or Coolant Level Goes Down) - Komatsu 114E-3 Series Shop Manual

SEN00458-01
S-11 Oil is in coolant (or coolant spurts back or coolant level goes
down)
General causes why oil is in coolant
Internal leakage in lubrication system
q
Internal leakage in cooling system
q
Confirm recent repair history
Degree of use of machine
Oil level
Hard water is being used as coolant
Oil level has risen and oil is milky
There are excessive air bubbles in radiator, coolant spurts back
Hydraulic oil or power train oil on applicable machine side is milky
When hydraulic oil or power train oil is drained, water is found
Pressure-tightness test of cylinder head shows there is leakage
Inspect cylinder block, liner directly
Pressure-tightness test of oil cooler shows there is leakage
18
Operated for long period
Suddenly rose
Gradually rose
40 Troubleshooting
Causes
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Remedy
114E-3 Series
1
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