Bernstein, Jeff (PSC-Akron)
Jeff.Bernstein at pneumaticscale.com
Tue Oct 3 07:58:26 EDT 2006
The oil burning that you are describing sounds like a turbo going bad to me. If, as was mentioned in an earlier post, you have smoke on long deceleration then I would suspect valve seals. If you don't get smoking on long deceleration then it is most likely turbo seals starting to fail. The amount of smoke on acceleration after idling sounds like too much smoke for a valve seal problem to me.
The smoking on long idling is exactly what would happen on my Porsche 924 Turbo and my Audi 5000CS Turbo when the turbo seals were failing. Apparently when the car idled for any length of time with the oil pressure being very low it would allow a lot of oil past the seals. As soon as you accelerate you burn the excess oil out of the turbo at a fast rate which makes a huge cloud of smoke. Under normal running conditions the oil pressure was sufficient to keep the seals from leaking on the turbo.
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