Oil Level Rises (Entry Of Coolant/Fuel) - Komatsu Galeo PC800-8 Shop Manual

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S-13 Oil level rises (Entry of coolant/fuel)
General causes why oil level rises
• Coolant in oil (milky)
• Fuel in oil (smells diluted diesel fuel)
aIf oil is in coolant, carry out troubleshooting for "S-11 Oil is in coolant"
Confirm recent repair history
Degree of use of
Operated for long period
machine
Fuel must be added more frequently
Coolant must be added more frequently
There is oil in coolant
Oil smells of diesel fuel
Oil is milky
When engine is started, drops of water come from muffler
When radiator cap is removed and engine is run at low idle, an abnormal num-
ber of bubbles appear, or coolant spurts back
Exhaust smoke is white
Water pump drain hole (breather hole) is clogged
When water pump drain hole (breather hole) is cleaned, coolant comes out
Oil level in clutch or damper chamber of machine is low
When EGR cooler outlet gas piping is removed, coolant containing antifreeze
flows out (*1)
When compression pressure is measured, it is found to be low
Remove and inspect head cover directly
Inspect cylinder block, liner directly
Inspect rear oil seal directly
Pressure-tightness test of oil cooler shows there is leakage
Remove and inspect water pump directly
Remove and inspect thermostat cover directly
Remove and inspect supply pump directly
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Causes
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Remedy
40 Troubleshooting
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PC800, 850-8