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Engine/trans mount washer orientation
When working on what I perceive to be "un-molested" 911's, I find the washers cupped "away" from the rubber in the mounts. I have been told that this gives the mounts a "rising rate" of resistance when they flex, like a shock top mount washer.
I also see the mount washers cupped "towards" the rubber mount, which limits the motion and stiffens the mount. "Racing mounts" on the cheap? Any old dealer tech's from the 60's-70's remember? Thanks, Dan |
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01-14-2023, 04:11 PM
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Join Date: Sep 2007
Location: Boston, MA
Posts: 1,459
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See this thread: motor mount washers - which way round?
Includes the TSB from 1978 that says to install cupped side down, with a caveat. Mark
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1979 911SC Targa |
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01-14-2023, 05:22 PM
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