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Thread: 69 911S Pilot bearing fit

  1. 04-09-2021, 04:49 PM #1
    mspeyser
    mspeyser is offline
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    69 911S Pilot bearing fit

    Wondering if anybody out there has encountered this:
    - Old bearing required inordinate amount of force to remove
    - New bearing OD measures 0.986" - same as the one that was removed
    - FW ID measures 0.9835 - 0.994"
    This fit seems way too tight. While there are no specs for this. I believe std. practice would indicate a .0005 - .001 interference fit.
    Before I chuck the bearing in lathe and polish to 0.985" I was wondering if anyone has encountered this situation.
    Alternate solution would be to shrink it in place by heating FW, cooling bearing but the re-sizing solution seems better.
    Thanks,
    Mark

    Update - Polished bearing OD to .985 - Problem solved
    Last edited by mspeyser; 04-10-2021 at 03:07 PM.
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