Smoke between shifts
I did a search before posting this thread and found some of the answers I was looking for, but not all.
Scenario- Just noticed today that the car is smoking between shifts under normal acceleration (5lbs of boost or less). It also smokes when downshifting to a stop, but it has always done this. No smoke while cruising or coasting to a stop.
I know the main factors of this, overly rich, Rings, valve seals or turbo and possibly crank case pressure. Rings and valve seals have less than 5k on them and were professionaly installed. Turbo has under one hundred miles, it was jsut rebuilt by Turbo and Import in Blaine.
The turbo had smoke coming from the exhaust housing before the rebuild. It did not smoke through the exhaust but from the outside of the housing itself, which I thought was unusual, so I brought it in to be checked out. They said it did not seem bad, but did show signs of normal wear, either way they put new seals in it and said it should be good. It no longer smokes under the hood, but now its out the exhaust.
How to diagnose:
Rings- Compression test
Turbo- oil in intake or IC piping near turbo
Rich- I have an AEM wideband, but not sure what exactly to look for. Could it be overly rich do to the weather?
Valve seals- ??
Crank case pressure- ??
My main guess right now is either Turbo was rebuilt improperly or too rich, just wanted some 3rd party input.
Last edited by LaunchHard; 07-21-2011 at 02:37 PM..
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