Oil Level Rises (Water, Fuel In Oil) - Komatsu PC130-7 Shop Manual

TROUBLESHOOTING
S-13 Oil level rises (Water, fuel in oil)
a If there is oil in the cooling water, carry out trou-
"
bleshooting for
General causes why oil level rises
• Water in oil (milky white)
• Fuel in oil (diluted, and smells of diesel fuel)
• Entry of oil from other component
Confirm recent repair history
Degree of use of machine
There is oil in radiator cooling water
Fuel must be added more frequently
Exhaust smoke is white
When engine is first started, drops of water come from
muffler
Leave radiator cap open. When engine is run at idling,
an abnormal number of bubbles appear, or water spurts back
Oil level goes down in clutch, TORQFLOW transmission,
or damper chamber
Oil level goes down in hydraulic tank
Engine oil smells of diesel fuel
Water temperature is low
Pressure-tightness test of oil cooler shows there is leakage
Pressure-tightness test of cylinder head shows there is leakage
When compression pressure is measured, it is found to be low
Inspect rear seal directly
When pump auxiliary equipment is removed, seal is found to
be damaged
Remove head cover and inspect directly
Remove injection pump and inspect directly
Defective contact with thermostat seal valve
Remove oil pan and check directly
PC130-7
"
Oil is in cooling water .
Operated for long period
Causes
Remedy Remedy Remedy
S-13
20-621
(1)