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WERK I WERK I is offline
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Join Date: Jan 2003
Location: Wisconsin
Posts: 3,291
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It looks very close to the area of your top compression ring. I suggest pulling the piston and inspecting the ring for a shiney spot. It may have been a defect on the gap portion of the ring that caused the polished line on the cylinder. Is it a black line or the end result of something rubbing hard enough to wear the cross hatch pattern down and leaving a very smooth relective surface?
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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 03-06-2005, 07:22 AM
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