Quote:
Originally Posted by mannys9130
I believe the only path for fuel to oil is via the lift pump or one of the IP pump elements. I know oil can get into the fuel tank through a ruptured lift pump. Is the opposite true? I'm not sure, but that's where I'd look first. Drain the sump and fill with fresh oil first. Then suck some diesel out of the fuel tank and see if it's black and dark in color.
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X2.
In this last 3 Years more then few people have manged to pull the Element Barrels up and out of the slot and Pin that are line the barrels up when they chaged the Crush Washer and the Delivery Valve O-rings.
The Fuel Supply/Lift Pump has a little 5mm ID O-ring that seperates the Fuel From the Oil inside of the Fuel Injection Pump. If Fuel comes out it is going to mix with the Oil and drain down into the Crankcase.
I suppose if some dirt got into the Fuel Injection Hard Line and made it into the Fuel Injector and held the Nozzke Pintel open that it would not take much raw Fuel from that to lock up the Engine; but, there would have been a noticable miss if that happed.