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Technical Drill broken head bolt - advice

Discussion in 'The Hokey Ass Message Board' started by MGK, Mar 22, 2023.

  1. noboD
    Joined: Jan 29, 2004
    Posts: 8,983

    noboD
    Member

    At 71 I have been a machinist all my working life. Everyone knew better then to ask me to take out a broken easy out. If they brought it to me BEFORE they ruined it it was easy, wouldn't even try if it had a stub from an easy out in it.
     
    bobss396 and 427 sleeper like this.
  2. ThisOneGoesTo11
    Joined: Feb 19, 2018
    Posts: 406

    ThisOneGoesTo11
    Member
    from Oxford, PA

    Two ideas ...probably no good....
    1.if you can tap that hole far enough for a few threads put a stud in there and braze the stud and threads then file excess.
    2.hack job but might work...drill the head and block right next to the existing hole, where the pile of shavings appears to be left of the hole. Hopefully does not hit a water p***age. Maybe take the head to a shop and have them drill that hole, then you drill your block using the head as a guide.
     
  3. Harv
    Joined: Jan 16, 2008
    Posts: 1,475

    Harv
    Member
    from Sydney

    This is very cool... a true artisan at work who understands metal.

    Cheers,
    Harv
     
  4. bobss396
    Joined: Aug 27, 2008
    Posts: 18,741

    bobss396
    Member

    I have a buddy who owns an auto repair business. He sends me all his busted-fastener puzzles. I get timing case covers, intake and exhaust manifolds and a cylinder head now and then. I have always gotten them out.
     
  5. Budget36
    Joined: Nov 29, 2014
    Posts: 15,319

    Budget36
    Member

    My dad (rip) a**** other things was a wizard with his Victor. We were changing the radiator in his Pete and the stud snapped a few threads in it. Bottom and top tanks are bolt on with a gasket seal to the core. (Casted aluminum).
    So we pulled it, he lit the torch with the bottom tank in the air above him, and dribbled the stud out. Quick and easy with a bottom tap (which hardly hung up) job done.
    I was like “damn”.
    I’m the apprehensive type, if my way doesn’t work, I take it to someplace before I eff it up.
     
    bobss396 likes this.
  6. 2OLD2FAST
    Joined: Feb 3, 2010
    Posts: 6,062

    2OLD2FAST
    Member
    from illinois

    When you don't try you can never fail .:(
     
    bobss396 likes this.
  7. bobss396
    Joined: Aug 27, 2008
    Posts: 18,741

    bobss396
    Member

    Most broken bolt stories were rush jobs from my experience, so is extracting them when it goes really bad. I've turned down the impossible to fix ones. Far easier to get a new or used part if they are around. Taking out a broken fastener requires time and finesse.
     
    warbird1 likes this.

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