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3rd popping out out gear 915

Transmission and Clutch

Vehicle Information: Model: 911; Year: 1985; Body Type: Targa; Engine (type, size, modifications): 3.2; Total Mileage: 87000;

Hi, I have a 1985 Targa US specs. My problem started with what I thought was a dead spot on acceleration. When I would punch it it would have power and then hit a flat spot then power and then flat spot. No RPM surge. So I took it to a porsche shop in NY and had one of the mechanics take it out. The clutch died on the test drive and they brought it back to the shop. Now I put a new clutch, pressure plate, throw out bearing, clutch cable, clutch spring that sits on the 915 housing to the cable. When they put it back together and test drove it. All gears worked great but third. It pops back out when under a load. It goes into third, but when he puts his foot on the gas it pops out.It did not have this problem before the clutch. All gears felt good. I have owned a 85 915 that was terrible and this one shifted beautifully. So yesterday I spent the day with them and they dropped the engine and transmission. They took apart the transmission. Nothing. Everything looked great. They think its the syncro ring. This is driving me crazy. What do you think is the problem? All the dog teeth seem to be fine. Should I have them replace all of the third gear parts?Robert

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