oh joe, since we are in a confessing mode, i too have a 'damper' in between my air cleaner housing and the cam cover. and truth be told it is 1/2 of a rubber exhaust bushing from a 1982 peugeot no less! i keep the other 1/2 as a spare!

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1984 300D Turbo - 231k....totalled 11/30/07 RIP