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2002 C4 Cabrio engine smokes during autocross


Vehicle Information: Model: 911 C4 Cabriolet; Year: 2002; Body Type: Cabriolet; Total Mileage: 14000 miles/22000 km;

Our 2002 911 C4 cabrio with 22,000 km (14,000 miles) on it runs fine and oil consumption is moderate, about a quart every 2000 miles/3000 km.However, ever since new, after two or three hard autocross runs and then a half hour at rest, the restart frequently results in billows of bluish smoke. Not puffs - but a mosquito-fogging cloud.Last year the dealer undertook the replacement of the oil separator, but this seems to have made no difference. Throughout this year the same symptoms appeared, and my "strange" engine is monitored by our entire autocross community.Because of this, I have concerns over resale value, and feel that either the engine should be replaced or a financial solution offered by the factory to offset an expected drop in resale value.The latest posture of the regional Porsche rep is that the smoking is not all that unusual and that I shouldn't be concerned. I don't buy that. I've been around high performance cars all my life, and huge billows of oil smoke is never considered "normal", even with race cars. I also feel that this kind of annoyance, even if the engine isn't damaged, should not have to be tolerated by the owner of a car that lists for almost $140,000 CAN in Canada.I would appreciate hearing any theory you might have on what is occuring here that our dealer has been unable to diagnose, and also your opinion of Porsche's current position. Certainly Porsche has to provide engines that can handle a couple of aggressive laps without embarassing its owner!Regards

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