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Stripped oil screen bolt

Discussion in 'The Garage' started by buztabuzt, Jul 31, 2022.

  1. Old Yamma twin. Oil and filter change as usual. Had been a few years since I looked at the oil screen thats at the bottom of the oil pan (slightly below drain bolt. Held on by 6 tiny 8mm bolts and a gasket. In past it had some small metal flakes so wanted to give it a look. Looked good

    Went to reattach with torque wrench set to 10 ft-lbs. Torque wrench worked fine for drain bolt and filter bolt. Something went wrong at such a low setting. I kept spinning it and was surprised it hadn't clicked off. I kept spinning (gasp), despite thinking something was off.

    Now I have half a bolt that dropped out, half stuck way in there. Naturally it stripped the threads in that area. So... I assume best practice would be to remove the half a bolt somehow (seems too deep / small for EZ out) and retap it? Would it be terribly ill-advised to leave it and see if it just holds a seal assuming I don't need to check that screen anytime soon and know I need to keep an eye on it/oil level?

    TLDR: Can i leave stripped half bolt in bottom of pan? It's one of 6 bolts holding on a screen housing. I added couple hundred CC of oil last night to see if it drips (not under load).
    IMG_1030.jpg IMG_1024.jpg
     
  2. CaptChrome

    CaptChrome XS400 Addict

    I wouldn't leave a broken bolt in the case, but that's just me. I have seen others do a lot worse than leave one broken bolt in an engine though.

    It would take some careful drilling and a small EZout to get it out. Not a fun job, especially with the engine still in the frame.
     
  3. JPaganel

    JPaganel XS400 Addict

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