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Thread: clump, clump sound in lower

  1. #1
    Join Date
    May 2009

    Default clump, clump sound in lower

    hi all, removed bearing carrier and replaced prop shaft seals and big o-ring on
    bearing carrier, now I hear a clump, clump sound in lower only in reverse
    in forward sounds ok checked the shift shaft looks ok but not sure,
    had problem with shift shaft before but there was ether no reverse
    or a cling, cling, cling sound, drive is trimmed all the way down?

  2. #2
    Join Date
    Nov 2006


    Could be a shift adjustment, assuming you got the brass shift lever lined up properly. Email for the shift adjustment document. That may help you get it figured out.

    Tech Support

  3. #3
    Join Date
    May 2009


    ok, I'll try that thanks again for your help, and sei has the best service and info. anywhere for
    all us do-it-your-selfer's .

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Sterndrive Engineering, Inc. (SEI) manufactures a stern drive designed to replace Mercury Marine's MerCruiserŽ Alpha OneŽ, R, MR, Gen II and Bravo OneŽ stern drives. MerCruiserŽ Alpha One, R, MR, Gen II and Bravo OneŽ are trademarks of the Brunswick Corporation. SEI has no affiliation with the Brunswick Corporation. Consequently, any warranties governing products and or sold by Brunswick Corporation will not apply to products manufactured and or sold by SEI, or to products damaged due to the operation of an SEI product.