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    04 Skidoo 800 twin HO bent rod

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    • Member since
      July 2005
    04 Skidoo 800 twin HO bent rod
    Posted by Dick from Wellston on Tuesday, March 10, 2015 7:49 AM

    We have a 04  800 ho doo that must have hydro locked, after the back fire happened the motor sat for  8 or 9 months. After pulling the motor and tearing it down, we found the bent rod, mag side, and both sides of the case full of oil, how did all this oil get in there. Not sure what caused the Hydro lock. Did this oil cause it, or was it a fuel problem, like normal hydro lock's, and after it sat for 9 months the oil seeped in the cases. Don't think the center seals or oil pump check valves went bad all at the same time.

    Let me know what you think.

    Dick

    • Member since
      July 2005
    • From: Anchor Bay MI
    Posted by chines on Tuesday, March 10, 2015 8:27 AM

    Fuel or oil will pass by the center "seal" with no problem and fill the entire case.Could have been fuel or oil.Was the fuel shut off or left on?

    Self proclaimed President, Southeastern Muskamoot Bay Drag Racing Association. 5 members, and a few more that I'm considering.no dues. God bless the second amendment and thank god for the fifth.

    Any engineer can design an a-s-shole, they need an operator to make it s-hit!

    • Member since
      July 2005
    Posted by Dick from Wellston on Tuesday, March 10, 2015 10:41 AM

    Fuel shut off is off now, but don't know how it was when it hydro locked, it has set a long time before we got it to fix it. But the cases are full of oil now.

    • Member since
      March 2015
    • From: Bozeman,Montana
    Posted by PRCSteve on Wednesday, March 11, 2015 12:20 PM
    Have seen this before, almost every time it was a bad seal in the oil pump bleeding into the cases.
    • Member since
      July 2005
    Posted by dyna-tek racing on Friday, March 13, 2015 8:29 PM

    if it is clean injection oil there is only 2 places it can come in,center seals or case halves leaking.if it is fuel then carbs running on or fuel pump diaphram

     

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    • Member since
      October 2013
    Posted by Ross Halvorson on Tuesday, March 17, 2015 8:31 AM

    Typically the oil would have to come from the center seals leaking, because  the case drive is full of oil to lubricate the oil and water pump drive gear.  It was not uncommon on engines to have some center drive leaking after long storage periods, but it was only minimal and was not a concern.  When the engine is full in your case, the seals needed to be replaced, or a new exchange crankshaft now because the of the bent rod. - Straightline Performance

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