yeah sounds like the turbo - Saab Performance Bulletin Board - Saabnet.com
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the reason it smokes at idle & not under boost is that the oil pressure is greater than the exhaust pressure at idle
by the time oil is pushing into the turbine housing the bearings are so bad that the turbine shaft is probably riding directly on the bearing housing where the exhaust side seal lives (its probably not rebuildable)
the other reason a urbo will smoke is excessive crankcase pressure like in my poor tired engine where under oost the crankcase pressure gues way up & when you back out of the throttle the pressure in the turbine housing dropps before the crankcase pressure does this poshes oil into the turbine housing but I see no smoke at idle mostly on deceleration after boosting
JAK
posted by 68.119.227...
Posts in this Thread:
- Smokes badley at idle ?, Waveman, Thu, 4 Mar 2004 23:05:23
- Re: Smokes badley at idle ?, GSK@SWEDISH DYNAMICS,INC., Fri, 5 Mar 2004 10:32:19
- Re: Smokes badley at idle ?, GSK@SWEDISH DYNAMICS,INC., Fri, 5 Mar 2004 10:29:19
- yeah sounds like the turbo, jak
, Fri, 5 Mar 2004 05:31:10 <-- Viewing This Message - i'd say turbo and turbo seals nm, sab, Thu, 4 Mar 2004 23:23:32
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