Deere 730 w/ fuel in crank case

TomW · Jul 15, 2010

I have diesel fuel in the motor oil of a 730 diesel tractor. I suspect it is bleeding through the fuel pump. Any suggestions on stopping the problem?

Bob · Jul 15, 2010

Probably the MOST likely cause is that the little fuel transfer pump at the RH side of the engine needs to be resealed.

HOPEFULLY, the shaft isn't too badly worn in the seal area.

It's also possible for LINES under the main pump cover or inside the tappet cover to leak.

msb · Jul 15, 2010

Take the pump cover off,start it up and have a look. Wipe everything dry first.Probably one or both of the delivery valve holder copper gaskets has eroded.Very common to those pumps.

Deere 730 w/ fuel in crank case

TomW

Member

Bob

Well-known Member

msb

Well-known Member

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