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Thread: 587 bad crank

  1. #1

    587 bad crank

    Hi guys was out riding last week during the holiday and my engine began to lose power quick and eventually turned itself off. When I went to start it again it turned over, but sounded like metal on metal. Was towed back to the docks and I pulled the engine. Thats about as far as I have gotten. I believe its a crank bearing.
    The question I have do all seadoo 587, 650 and 720 share the same block. Can I put a 720 crank in. Are the heads the same just different bores.
    My thinking is if I have spilt the engine I do not want to go back with a 587.
    Tjanks in advance jk

  2. #2
    water worx's Avatar
    Join Date
    Aug 2006
    Sunny Fla,Ft Pierce
    580's & 720"s are 2 different engines,parts dont interchange.

  3. #3
    So they do not share the same case, right.

  4. #4

  5. #5
    Banned User
    Join Date
    Mar 2009
    you have to get the right crank

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