bmxfelon420
15+ Year Contributor
- 652
- 62
- Sep 6, 2005
-
Napoleon,
Ohio
Sounds like the oil seal on your turbo is going out. What youre describing (minus the not boosting) is what would happen on my car when the seal was bad. It wouldnt smoke at all if i wasnt under any boost, get into it at any point and it'd be a smokescreen.
The only things that dont add up is the lack of oil in the IC piping. Seems a bit strange to me. The only thing i can think of that might help narrow it down is to do a boost leak test to see if you can hear any hissing coming from the turbo area. It's a long shot, but worth doing. The only thing I could say everything you've said points to is a turbo issue. Either being out of balance, bent shaft, bad bearing, etc. I'd look the turbo over carefully.
As for the boosting issue, my guess is that your wastegate arm isnt shutting all the way. I'd check to make sure it isnt tweaked and holding the flapper open more than you want, or just no good to begin with. You can test that with an air compressor pretty easy.
The only things that dont add up is the lack of oil in the IC piping. Seems a bit strange to me. The only thing i can think of that might help narrow it down is to do a boost leak test to see if you can hear any hissing coming from the turbo area. It's a long shot, but worth doing. The only thing I could say everything you've said points to is a turbo issue. Either being out of balance, bent shaft, bad bearing, etc. I'd look the turbo over carefully.
As for the boosting issue, my guess is that your wastegate arm isnt shutting all the way. I'd check to make sure it isnt tweaked and holding the flapper open more than you want, or just no good to begin with. You can test that with an air compressor pretty easy.