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Kobelco 909LCii coolant in motor oil known causes?

K

KFont

New Member
Joined
Apr 18, 2023
Messages
1
Location
Southwest Louisiana
Hello group. I'm considering buying a Kobelco 909LCii with the mitsubishi turbo 6DC15. Are there any known issues to consider when diagnosing coolant in motor oil for this particular engine? It happened shortly after a coolant flush. Which raises my suspicions. The coolant pressurized the crankcase and leaked from the rear main seal. It already had a new headgasket and machined head. It still runs without issue. The only symptom is rear main seal leaking milky oil. Its always possible something related to the new gasket failed of course. Or leaking jug seal. Or a possible previous block seal failed, etc. But I'm asking those with more experience with this particular engine setup to chime in on known issues to consider. And any additional weakpoints to consider would be helpful. Many thanks
 
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