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zebswiss
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Everything posted by zebswiss
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1973 911t mechanical fuel injection, 85K miles, 5 speed, silver, whale tale, fuch's etc. Any 2.4 liter experts out there... my 73t runs smooth and strong above or below 2000 rpm's and when it is cold. It developed a buzzing rattle in the area of the distributor gear or cam chains and only when the engine is at or passing 2000 rpm's. It doesn't matter if the clutch is in or out or if it it in gear or not...it still occurs. I was hoping that the new hydraulic cam chain tensioners I installed would fix it but they had no effect. I pulled the alternator out thinking it might be a really bad bearing... no change. I can't pin point exactly where the noise is coming from with a stethascope but it seems to be the loudest on the distributor base and even lower where the gear is. It sounds like a gear hitting a bolt as it spins (kind of a metallic zzzzzz) and very noticeable rattle. Any thoughts on this would be much appreciated... It's a beautiful silver little 911 with ony 85K on the odometer, it's in top condition I'm just afraid to drive it with the noise. Thanks in advance for any thoughts. Pics attached.
