1985-1998 [Subscribe to Daily Digest] |
 | [Main 9000 Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Replaced turbo, still burning oil...what else to check? Posted by Daven [Email]  (#290) [Profile/Gallery]
(more from Daven) on Sun, 1 Apr 2007 14:32:15
Members do not see ads below this line. - Help Keep This Site Online - Signup
|
Hey all. So my father, Christen Johansen, and I are still puzzled by the amount of burning oil smoke coming from the tailpipe on my brother's 1992 9000 Turbo. As he posted below a few days ago, we replaced his seemingly burned-out, partially siezed turbo with a newer one that didn't spin freely but had no shaft-play whatsoever. The turbo had been removed from its car 6 months before we bought it and our thinking was that after some hot oil ran through it it would free right up. After an oil change and some long idling sessions we took the car for a drive. Now the turbo does spin more freely and still has no shaft play and it boosts just fine with no loud whistle or siren-type sound like the old turbo made before it crapped the bed. There is still A LOT of smoke coming from the tailpipe and what we can't figure out yet is whether the turbo is still burning oil or if it's residual oil from before. The previous turbo was leaking oil directly into the intake side and the intercooler pipes and hoses were filled with oil (roughly a 1/4 quart in each lower intercooler elbow hose) when I removed them to clan the system prior to installing the new turbo.
Between each test drive, the rubber intake pipe between the AMM and turbo is taken off the turbo and there is a little oil on the inside lip on the cast-aluminum intake side. We wipe that off and then drive it again. Then we remove the pipe again and the same amall amount of oil is there again. The AMM and air filter are clean and show no signs of oil. I'm wondering whether the breather valves on the valve cover are sucking or pushing oil down into the rubber intake pipe and the turbo is then sucking it in and burning it. One thing I should mention is that I over-filled the engine with an extra quart, quart and a half of oil. What is the engine's usual tendency when this mistake is made? It seems perfectly logical to me that the excess oil overwhelming the engine and is being sent down to the turbo to be burned.
Any advice is helpful. The banjo fittings and everything relating to the turbo installation procedure was done correctly.
-Daven Johansen
posted by 68.173.2...
, Sun, 1 Apr 2007 14:32:15 <-- Viewing This Message
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.
 |
 |
 |
 |
 |
