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Old 29-09-2013, 19:33   #1
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Yanmar 2GMF Oil Level Rising

The oil level on my Yanmar 2GMF is rising (it's at the top of the dip stick). The engine starts and runs normally - no black or white smoke. Any ideas on what the cause can be?
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Old 29-09-2013, 19:48   #2
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Re: Yanmar 2GMF Oil Level Rising

Broken diaphragm on the fuel pump, allowing diesel to leak into the crankcase. Fix it soon as diesel is a lousy engine lubricant.

David
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Old 29-09-2013, 20:31   #3
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Re: Yanmar 2GMF Oil Level Rising

Drain the sump or you are heading for a run away situation.
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