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  1. #1
    Happily Self-Employed WFO's Avatar
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    X45 crank bearing smoked

    My buddies 1200 took out the center cyl crank bearing. I havent gone over to take a look see yet but he says it bent the rod also. Any ideas off the top of your heads ? He said no obvious signs of water intrusion.

    This may be the killer- its an SBT long block.


  2. #2
    Plrs X45's Avatar
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    Quote Originally Posted by WFO View Post
    My buddies 1200 took out the center cyl crank bearing. I havent gone over to take a look see yet but he says it bent the rod also. Any ideas off the top of your heads ? He said no obvious signs of water intrusion.

    This may be the killer- its an SBT long block.
    That is the killer!

  3. #3
    Happily Self-Employed WFO's Avatar
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    Quote Originally Posted by Plrs X45 View Post
    That is the killer!
    I kinda figured that.

    I assume their bearing suck like in their Yamaha cranks ?

  4. #4
    ph2ocraft's Avatar
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    How about a leaking needle and seat? I've seen them fill the cylinder and then BAM hydro-lock.
    Does it have oil injection or was it removed for pre-mix?
    I hate to ask BUT did it have oil in the container if it's oil injected?
    How about some picts?

    Otherwise I'd say their crappy bearings tubed.............

  5. #5
    Moderator RX951's Avatar
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    yep. I would bet its the cheap bearing manufactuer they use ,and it let go.
    ditto on the hydrolock.. oil , gas ect...the bent rod is what makes me think that also

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    Happily Self-Employed WFO's Avatar
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    The oil injection was my first question to him... he is premixing.

    And the bent rod is strange. Good call on the carb. Worth checking out.

    I will be going over this week to have a look see and will get some pics if we cant figure it out.

  7. #7
    Happily Self-Employed WFO's Avatar
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    BTW... where would I get a decent crank for that 1200 ?

  8. #8
    mtrager's Avatar
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    That sucks.

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  10. #10
    Happily Self-Employed WFO's Avatar
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    Quote Originally Posted by RX951 View Post
    http://www.crankworks.com/index.html

    http://www.hotrodsproducts.com/index.cfm


    Also check with 97GPSLEEPER, he may have a hookup, he's up on those GP's
    Billy, its a 99 Polaris X45 1200cc

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