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Broken bolt help

Discussion in 'Fisher Engineering Discussion' started by WOODY367, Sep 5, 2016.

  1. WOODY367

    WOODY367 Senior Member
    from LI, NY
    Messages: 468

    I broke 2 of the mounting bolts/studs on my intensifier light while trying to take them off to paint. I had soaked them for day with PBblast and Kroil with no luck. I then used heat and they broke right off. Before I break the other 2 does anyone have any ideas? Is there a way to replace the ones the broke as thee is really no room inside the light?
     
  2. seville009

    seville009 Senior Member
    from CNY
    Messages: 737

  3. Randall Ave

    Randall Ave PlowSite.com Addict
    Messages: 1,980

    On the other two grind the nuts down on the flats in s fee spots and split the nuts. Remove the bolt plates. Get new hardware. Rivit back together.
     
  4. WOODY367

    WOODY367 Senior Member
    from LI, NY
    Messages: 468

    Regular pop rivets will be strong enough to withstand the bouncing and vibration?
     
  5. NHresident

    NHresident Senior Member
    Messages: 285

    I don't think the broken one is repairable as to the other one that's still on id run whats called a chase dye 1/2" coarse right up both studs till u top out at the 1/2 inch nut to clean up the threads then set up a pneumatic gun to high torque low speed then heat each nut to cherry read and put the air gun to it and don't stop till it breaks or the nut comes off some people pre heat the nut and pb spray it a few times to work the happy juice in before u "go for it" the price of one light is about $150 or so so id recommend craigs or ebay to sell the entire set up u have and buy a whole new intebnsifier kit for about $275 good luck
     
  6. Randall Ave

    Randall Ave PlowSite.com Addict
    Messages: 1,980

    I have an air riviter that does 1/4 rivits. Tiny rivits, no.
     
  7. Aerospace Eng

    Aerospace Eng Senior Member
    Messages: 154

    You could also use Cherry rivets. Expensive, but are designed for aircraft structural work. Aircraft Spruce would be one place to get them. The only problem is if you have to ever remove them you have to drill out the locking collar
     
  8. Aerospace Eng

    Aerospace Eng Senior Member
    Messages: 154

    Meant to say Cherry Max, although there are Cherrys that look like, but are superior to, standard pop rivets.
     
  9. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,238

    I had one of the three studs break on mine.I ended up going and getting a bolt with the same thread. I ground down the broken stud so it was flat and welded a new stud on.That was 6 years ago it the light is fine never shakes or moves way easier then drilling rivets out.Word of advice next time mask the lights and bolts off clean them up and spray paint them gold