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  1. #1

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    Broken oil fitting

    Got a used 787 motr that was shipped with the oil elbows still in and of course the lower one is broken off in the case. Any easy way to remove them or do I have to split the cases and drill it out...crap. If I split the cases, can I reassemble an 800 motor if it's upside down. i.e. I don't want to remove the top end, just pull the lower case half and fix the oil elbow, install new front and rear crank seals maybe a little oil in CB area and put back together. I have not done a bottom end on a 800 motor in many years and can't remeber if the cb shaft and all will line up right with it siting in the top half. something tells me it will not.


  2. #2
    96XPSS's Avatar
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    Yes, you can disassemble upside down leaving all the internals in place.

    That nipple is cast if I remember right. I'd send it back unless you got a killer price making it worthwhile to split the cases to correct.

    Is it a clean break you can JB Weld back together?

  3. #3
    Moderator RX951's Avatar
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    Q* Are those fittings on the bottom and side brass threaded fittings? or is the fitting pressed in?

    If it is one of the brass oil fittings, you can use an easy out. I've used it to remove broken brass threaded fitting in heads before. They also make a machnist easy out for tubing fittings that break that have a square shank. the look similar to this, but are square shank. goto sears, autozone, or your local speciality tool supply like northern tools or harbor freight is nearby
    the other easy outs pictured, you tap into the fitting with a hammer and then use a wrench to back out.

    You can also drill it out, but you'll need to make sure no shavings are getting in the motor.

    * But, if this is a new motor, and its not feasible to repair yourself, let the supplier deal with it.

    Last edited by RX951; 07-12-2008 at 08:36 AM.

  4. #4
    Moderator RX951's Avatar
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    is it one of the #17 that broke

  5. #5
    Tool Bag water worx's Avatar
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    They are a cast aluminum fitting that is screwed into the case.

    Take a small dremel tool & cut the broken piece in the case in 2 pieces & it will come right out.

  6. #6

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    I was worried with the dremel I would mess up the threads. I'll take it to the machine shop this week and let them look at it. I have a broken bolt in a pipe I need removed anyway. Thanks for the ideas.

  7. #7

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    Personally I wouldn't recomend JB weld on anytghing as critical as the oil system.

  8. #8
    PEST!'s Avatar
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    RX951 is right use an easyout or take it to a machine shop if they are good they can pull it in a short time without all the dremel mess and chance of screwing it all up..

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