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  1. #1
    Deanrw3's Avatar
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    Broken drive shaft - seen this? w/ pics

    This was on my 951 x4. This weekend I broke my drive shaft in the middle of the lake. I was going over some small bumps and then hit WOT and I hear engine rev but I went nowhere. Thought i stripped the splines but no....take a look.

    I have read a lot of posts here but haven't seen this happen to many people.













    btw i supposed i am in the market for a new drive shaft if anyone has one around.


  2. #2
    flyin' the friendly skies airbornexp's Avatar
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    nice one bro

  3. #3
    mibunkerking's Avatar
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    that sucks. i have the shaft and carbon ring out of my gsxl donor ski.

  4. #4
    KrunchovXPL-GTX-RX's Avatar
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    Holy metal fatigue Batman.

    Bad casting, perhaps?

  5. #5
    96XPSS's Avatar
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    Make sure your rear engine mounts are still tight Dean. A little up and down bouncing could snap it.

    And send that prop to Impros for the Worx...that thing is in bad shape!

  6. #6
    SURFnTURF's Avatar
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    That would be an alignment problem for sure. I would check your engine height .

  7. #7
    Deanrw3's Avatar
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    Robert - This was the first thing I checked, I thought i broke a mount but it all looked good.

    Surf - Thanks for the tip. I was wondering if this had something to do with it. When i built the project last season I aligned it. Then i took the motor out and at the start of the season i realigned it. The odd thing was that it was off and i thought it should be at least close... I did note that it shifted up more the second time.

    Maybe I had the wrong alignment tool or something. I supposed I will do it again to make sure... It seems like the motor would have to be way out of to snap the shaft...

    thanks for the help, any other idea would be great too. I dont want to do this again if it was my fault.

    dean

  8. #8
    Richieb's Avatar
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    Engine mounts good?, Pump seated nicely?

    Bearings in pump could be binding.

    To be honest, Air-time to hitting water... the pump-line takes quite a shock, and just could well be time, corrosion, fatigue.

  9. #9
    is that a 155mm pump?

  10. #10
    Deanrw3's Avatar
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    Richieb Engine mounts good?, Pump seated nicely?

    Bearings in pump could be binding.

    To be honest, Air-time to hitting water... the pump-line takes quite a shock, and just could well be time, corrosion, fatigue.
    Mounts are all tight and not broken. Pump sits flush and was sealed good (love taking those off). Pump spins free and easy. No major chips out of the prop where something might have got caught.

    XPSteve is that a 155mm pump?
    Yes, it is the 155 plastic pump.


    dean

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