R&D Head pipe sprung a leak?
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  1. #1
    PWCToday Newbie
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    R&D Head pipe sprung a leak?

    Hey all! I have an R&D snail pipe on my 750 and the head pipe has a small leak in it.. Like someone poked a very think needle through it small. Is something like this weldable? Or does this mean that the whole head pipe is compromised? I recently took it apart and cleaned it and from what I could see there was not much if any corrosion. This also appeared after running some star bite descaling engine flush through the engine to get rid of some of the calcium build up in the engine.

    Idk where I am going to find this replacement part and I am having trouble finding any new exhaust systems anywhere. If this is something that could be welded to plug up the hole that would be awesome, but I am not personally sure what to do.

    The way i would describe the leak would be... you know when you fill a water balloon up and there is an itty bitty hole in it that lets out the smallest stream of water. That's how small it is.

  2. #2
    PWCToday.com Is My Home Away From Home wmazz's Avatar
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    Re: R&D Head pipe sprung a leak?

    If it is on the outside the repair is easy. If it is on the inside,
    it is not impossible.

    Many aluminum headpipes had 1 or 2 slots or circles for the water
    jacket mold material to key into the sand cast mold. After the aluminum
    was poured, the water jacket mold turned to sand.

    The slots were welded shut, and the headpipe was pressure tested
    before any extra machining/powder coating was started.


    Bill M.
    Last edited by wmazz; 08-13-2021 at 01:38 AM.
    Horsepower == Speed, RPM != Speed



  3. #3
    PWCToday Newbie
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    Re: R&D Head pipe sprung a leak?

    I actually patched the with JB weld because it was so small, this worked well. I Will get it tig welded when the JB fails

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