John Deere 730 diesel fuel in oil

Beefyjd · May 23, 2018

Hi all, with the fuel on and sitting, not running im getting fuel in oil. Turn the sediment bowl off, the level doesnt rise. Could it be the check valve coming out the cover over the pumps? Thanks again guys and gals.[/img]

mjbrown · May 23, 2018

Most likely the seals in the fuel transfer pump need to be replaced.

Bob · May 23, 2018

"Could it be the check valve coming out the cover over the pumps?"

No.

RLA · May 23, 2018

I agree with MBrown.. Transfer pump is the 1st place to start.

ET · May 24, 2018

Underneath the fuel rack there is a short stand pipe between the block and the rack. There is an o-ring on each end of this pipe they get hard and leak. There are 2 gaskets that go underneath each end of the rack that you will need also.

John Deere 730 diesel fuel in oil

Beefyjd

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mjbrown

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Bob

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RLA

Well-known Member

ET

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