Pre-Power Stroke Diesel (7.3L IDI & 6.9L) Diesel Topics Only

1985 6.9 diesel fuel in engine oil

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Old 07-10-2003, 09:57 AM
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1985 6.9 diesel fuel in engine oil

I recently purchased a 1985 ford f 250 diesel 6.9 millage unknown
Seems to run fine
problem, getting diesel fuel in crancase, about a quart every couple hundred miles.
fuel millage about 14 mile per gallon
at about one third throutle under accelateration it does have a heavy black smoke out of exhaust
 
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Old 07-10-2003, 10:02 AM
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1985 6.9 diesel fuel in engine oil

Fuel in the oil usually comes from a defective lift pump on the side of the block.
 
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