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WERK I WERK I is offline
Forced Induction Junkie
 
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Join Date: Jan 2003
Location: Wisconsin
Posts: 3,267
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Bryan, the other thing you may check, and this one is bizarre, is the blowoff valve. When I was going out in a test drive after my rebuild, the situation occurred that you experienced. I found that the blowoff valve hadn't been secured. The engine vacuum kept the valve in place in the 965 elbow off the metering plate assembly. When a sudden throttle closure occurred during high boost, the blowoff valve pressurized the chamber and actually raised the valve out of its socket. The stiffness of the pressure line and engine vacuum returned the valve back to the socket. Eventually, the valve became lodged out of its socket and the engine would not start.
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Dave
'85 930 Factory Special Wishes Flachbau
Werk I Zuffenhausen 3.3l/330BHP Engine with Sonderwunsch Cams, FabSpeed Headers, Kokeln IC, Twin Plugged Electromotive Crankfire, Tial Wastegate(0.8 Bar), K27 Hybrid Turbo, Ruf Twin-tip Muffler, Fikse FM-5's 8&10x17, 8:41 R&P
Old 02-27-2017, 05:52 AM
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