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  1. #1
    inteljd's Avatar
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    Spun crank bearing - next?

    Well my 05 RXP took a dive so I pulled the engine out, dove down to the crank and found that cylinder 3 spun a bearing on me. The crank looks to be a little rough up where the bearing spun. I wanted to get some feedback from everyone on what to do next for the crank shaft. I will be getting new bearings, rods and pistons - I will also get the cylinders honed to match the new pistons my question is what do I do about the crank?
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  2. #2
    Sayers's Avatar
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    Get it to a machine shop. What does the case look like?

    What caused this? Did you have a previous engine failure?

  3. #3
    inteljd's Avatar
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    The case is in great shape! No previous issues, I actually think it was due for some type of failure - I ride it pretty hard. I should be able to just use new bearings right?

  4. #4
    Sayers's Avatar
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    Quote Originally Posted by inteljd View Post
    The case is in great shape! No previous issues, I actually think it was due for some type of failure - I ride it pretty hard. I should be able to just use new bearings right?
    It's hard to tell how bad that crank is in the pic. Does not look bad, but I would not just throw new bearings in. Take the crank to a decent machine shop and have them clean it up.

  5. #5
    You need to check it by a machine shop. If it has been damaged, it could be caused by another problem. If its only the bearing then you are lucky, if the crank is damaged, they may have to machine it and get you oversize bearings.

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