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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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They may appear brass-like because of the small amount of brown oil covering the particles suspended in oil. Light will play funny tricks....
The only way to be sure is to clean the particles in solvent to remove oil covering them. Use a magnet to confirm.

Take a look at the case oil drain plug. It's magnetic and you should see a silver paste covering the magnetic pole in the plug. That silver paste is more than likely the material of the cam lobe(s) and rocker arm(s).
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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 04-24-2010, 12:20 PM
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