Where's My Oil Going?

[grayweber24]

Got a 96 7.3 with a 5 spd and 130,000 miles, that uses 1/2 a quart every hour. I did an oil analysis and a compression test and the motor is barely broke in. I already had a shop replace the injector o rings, and there's no oil going into the coolant either. I still think it's ending up in the fuel somehow, because I'm still getting quite a bit of blue smoke.Where else could the oil be going? The truck has been missing lately too, so while I had it in the shop they replaced 2 injectors, but to no avail.

[pittdiesel]

I just posted similar issue. Following.


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[Fordman247365]

How is the turbo?

[helievacpilot]

Originally Posted by grayweber24

Got a 96 7.3 with a 5 spd and 130,000 miles, that uses 1/2 a quart every hour. I did an oil analysis and a compression test and the motor is barely broke in. I already had a shop replace the injector o rings, and there's no oil going into the coolant either. I still think it's ending up in the fuel somehow, because I'm still getting quite a bit of blue smoke.Where else could the oil be going? The truck has been missing lately too, so while I had it in the shop they replaced 2 injectors, but to no avail.

You are correct in assuming that if you've got blue smoke, the oils getting in with the fuel somehow. I would have a leak-down test done. Compression test is ok, but more of a snapshot picture. The leak-down will really see if you have problems. 1/2 quart an hour is huge! If it doesn't look like the Exxon Valdez under your truck, your burning oil.
- Bill

[grayweber24]

I just put a brand new turbo in it and its still burning oil somewhere! I think I'm going to get a set of good used injectors and swap them in with new o rings and see what happens. I read somewhere that these injectors can actually bypass oil internally sometimes, not sure if that's true or not? There's no oil leaks under the truck. Is it possible that injector cups are to blame? at 130,000 miles?

[Patrick Feeley]

Probably not the cups. You will usually get fuel in the coolant with bad cups. Cheers!

[tempuser]

Any oil in the fuel bowl?

[dazed01]

Mine was burning oil till I replaced the injectors with a rebuilt set.

[grayweber24]

^^^^ Pretty sure I'm gonna drop a complete rebuilt set in it. I think the injectors are bypassing oil internally. Especially since when I put a new fuel filter in it I didn't notice any oil wash in the fuel bowl. Where's the best place to get a set of rebuilt stock injectors?

[dazed01]

I'm not sure about the best but I'm happy with my stage 1 injectors from rosewood.