Join Date: Apr 2011
Location: Central valley California
Feedback Score: 0 reviews
There are several ways as mentioned above, druling injectors, bad seal on a mechanical lift pump on the side of the block, or the shaft seal on the injection pump, and there are two ways to test for diesel one is the oil sample as mentioned above the other is adding a floresent oil dye to a buck of diesel and running the engine for a while then get a floresent light and see if the dye is present in the fuel, the next step would be to determine the entry point of the diesel into the oil, more than likly if your engine has the mechanical lift pump then either replace the pump or get a block off plate and elminate the pump and add a carrier electric pump.
1985 F250 XL XC LB 2WD with a 6.9 L IDI, C6 auto transmission, 4.10 rear diff, Goose neck, 5th wheel Kobalt Bed Tool Box Fel-Pro Gaskets, Hastings Rings, Clevite Bearings