Date: Wed, 12 Jan 2000 12:00:01 GMT
From: (Ceri Whitley)
Subject: Re: The dreaded turbo smoke? Classic 900

My 900 8 v Turbo bellowed out bluish white smoke on two occasions. Once it was intermittant and the other time it happened constantly whenever I accelerated. The latter occasion it proved to be a blown turbo and this was replaced. End of problem. The former was down to oil and other debris collecting in the bottom of the plastic air filter cannister. This oil was getting there via the plastic tube from the cylinder head (this is the relief overflow). When I accelerated the air suction was pulling this oil up into the engine past the air filter (which was saturated already). The saab mechanic who had just serviced the car couldn't be bothered to clean out the oil! Solution? I recommend that you redirect this oil over flow pipe so that it drains out of the engine bay and not into the air cannister. I hope this helps. Ceri On Thu, 06 Jan 2000 09:50:02 GMT, (surfsofa) wrote: >Can I enlist the help of some classic 900 turbo experts please. > >Last night on my drive home from work I was feeling a bit racey so I >booted my turbo once the engine had warmed up. > >For the first time since I got the car (it's now done 141000miles on >the original turbo) I got smoke out of the tail pipe. As it was dark >couldn't tell what colour. > >Obviously I was a bit worried. Later on the same drive I booted it >hard to see if it would happen again and it didn't. Loads of boost >still on tap. > >Is it possible that this smoking thing can happen intermittently? >Could this be caused by : >- car had been virtually unused for a week in cold, damp weather. >- car had not been driven hard for a while - ie. almost no boost in >the yellow >- car has to do a relatively short commute daily - 7 miles each way. > >Of course I'll be keeping an eye on it, but could those with >experience suggest what symptoms suggest what. ie. is it a gradual >failure, or will it go suddenly, and can the symptoms I've offered >cause a temporary smoking? > >Thanks for your help. >-- >surfsofa >

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