Iam still getting 7% of diesel in oil with all 6 brand new injectorzs... i wounder if it coul
dved be that the engine is old and it has blow by
7% diesel in oil detroit 60 series 12.7
Discussion in 'Ask An Owner Operator' started by truck567168, Nov 12, 2020.
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Rideandrepair Thanks this.
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Rideandrepair Thanks this.
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Where does the fuel pump mount to? Directly to front cover? Wonder if the input shaft seal is leaking?
Rideandrepair Thanks this. -
Fuel pump mounts to the back of compressor, geared to compressor. They’re very reliable. Usually will seep from a weep hole in the bottom, when going bad. If it’s plugged up with debris though it won’t. They do leak into compressor sometimes. It’s rare but can happen.
jamespmack Thanks this. -
Need to put some dye in the fuel, take valve cover off. Plug the return line.Take the fuel line off the fuel pump, and pressurize the system. One of the injectors is probably leaking.
AModelCat Thanks this. -
Is the oil level rising with the 7%? A gallon is a lot and if the engine isn’t consuming any of it it should be overfull all the time.
I’d change the oil and go 5,000 miles and get a sample. Watch level and see if it rises above the mark you filled it fresh at. See what it tells you and go from there. If nothing go another 5 and test again. Maybe that engine just doesn’t like the oil going that long.
I’ve had samples tell me fuel in oil that I couldnt find. I even poured expensive diesel leak dye in tanks at fuel ups and that wouldnt show up under a black light on the dipstick or anywhere. Level never came up but never went down either.Rideandrepair Thanks this. -
Rideandrepair Thanks this.
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Rideandrepair Thanks this.
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