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Date: Thu, 30 Apr 1998 14:23:55 GMT
From: (Richard Ross)
Subject: Re: 9000 Turbo problems

Daniel Green <> wrote: >Please can anyone help me? My 9000 2 litre turbo has started to develop >performance problems that appear to be related to the turbo. Two weeks >ago under acceleration, the car suddenly seemed to stop accelerating >with the help of the turbo and the turbo pressure gauge seemed to stick >at 1/3 of the way up. After a bit of hard acceleration for a few miles >it suddenly seemed to free itself and suddenly the car accelerated >faster than ever before. I enjoyed two weeks of this new power and then >today it has suddenly started to stick at 1/3 again. Anybody any ideas >what may be causing it (the car is an auto and has done 105K). >Any help would be much appreciated. >Dan Green. I had exactly this problem on my own 2.0 turbo (180K, and just traded in for a 2.3 LPT....) and it was a sticking wastegate. Basically, what happens when it starts to get sticky is that it sticks either in the open position (when you get no power) or the closed (where it ended up in my case) when the thing goes like stink until the fuel cut-out strikes... I never freed the wastegate, but I believe it's not that tricky a job with a bit of penetrating oil and maybe some heat. Getting at it is the difficult bit.... The APC valve may also cause the problem - you can check this to some extent by disconnecting the cable from it when you should get reduced power however hard you press the throttle. Hope this helps Richard **------------------------------------------------------ * Richard Ross * RH Designs * England * ** RH Designs - home of the StopClock f-stop enlarger timer ** and many other innovative darkroom products ** **------------------------------------------------------

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