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  1. #1
    Yamaha artisan Cutlass's Avatar
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    GP1200 Crankshaft inspection with pics

    So I have the crankshaft out of 65U engine and am going through inspecting it. All the bearings spin nicely without noise or roughness, but they do seem to have a little play in them. I was told they should be tight. the crankshaft spins nicely in the case otherwise.

    Also this area here where the rear crank seals ride seems a little roughed up. It looks worse then it feels. It feels smooth but I can also feel a little dip in the surface in that area. Is this a problem and is there a fix?



    And this rod seems to have a little heat discoloration. Doesn't seem to terrible but is it a problem?


    Thanks,
    Aaron


  2. #2
    Flying Scotsman's Avatar
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    I see rust on the second to last pic.If theres any in the bearings it will be a problem.Crank looks ok in the pics.

  3. #3
    Yamaha artisan Cutlass's Avatar
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    No rust inside the bearings them selves. Just on the edge of that race. Looks like that rear crank seal collar is available by itself. I think I might try to get one just for my own piece of mind.
    I was taking a closer look at the drive coupler and i suspect its not supposed to look like this.



    Might not be a problem but I think I'm gonna look for another.
    Last edited by Cutlass; 12-13-2010 at 11:39 PM.

  4. #4

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    ya got a hose or some thing rubbing on coupler, crank not that bad but hard to tell from here

    cd

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