bump...i posted this over in Tech Help too, but havent figured the problem out...ive tried tapping on the cover to get it to pop back out, and it does nothing....steve brotherton asked if i put a spring back in....what spring is he talking about? i didnt see anything come out that wasnt part of the original B2 piston

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1985 300SD 192,000miles...Astral silver/ Grey MbTex

1983 300D 194,000miles...White/Tan MbTex...my newest addiction