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Subject: Broken Bolt Trans Cover - Extraction advice

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Kimberly    Posted 03-31-2021 at 11:54:30 [URL] [DELETE]        [Reply] [Email]  
  • Broken Bolt Trans Cover - Extraction advice
  • I have a broken bolt on the trans cover. This bolt is where I am suppose to place a wire clip when I install the lights on the tractor. It has been that way as long as I can remember. What is the advice on fixing this issue? Should I try an extractor? Is this a through hole or a blind hole? If I have to drill out the broken bolt, what size drill bit do I use for this? The bolt is 3/8-16-3/4. I am not sure I have a 3/8-16 tap; might have to purchase one.

    Bruce Dorsi    Posted 04-01-2021 at 11:07:40 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Broken Bolt Trans Cover - Extraction advice
  • Unless you NEED to remove the transmission cover to get inside, I wouldn't worry about removing the broken bolt at this time.

    Find another place to secure the wiring if necessary.

    If you decide to remove the broken bolt now, my choice would be to get a set of left-hand spiral drill bills (approx $15). ...They are used in a reversible drill set in "reverse."

    As the drill spins to drill a hole, the points of the bit generate some heat,and (because of the counter-clock rotation) try to un-screw the broken bolt. ...I would start with a 1/8" bit, and if that doesn't work, step-up to a 1/4" bit.

    E-Z Outs often cause more problems than they solve.

    Welding a nut to the broken bolt is a proven method, but if you haven't any experience welding, you may end up welding the nut to the trans cover, as well.

    Lynn Patrick    Posted 04-01-2021 at 20:55:06 [URL] [DELETE]        [Reply] [Email]  
  • Re: Broken Bolt Trans Cover - Extraction advice
  • Second that left hand bit idea. They don't cost much (mine are from HF) & I have had very good luck w/them! The last one was a clutch bolt to the flywheel I twisted off. I used my cordless drill & it came right out!

    Kimberly    Posted 04-01-2021 at 23:06:18 [URL] [DELETE]        [Reply] [Email]  
  • Re: Broken Bolt Trans Cover - Extraction advice
  • We have a new HF; I will get by there and see if they have the left handed bits.

    Steve Dabrowski    Posted 03-31-2021 at 16:13:14 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Broken Bolt Trans Cover - Extraction advice
  • Weld a nut to the top of the broken bolt-that is the surest way-no worries about centering a drilled hole which is a hassle anyway.

    Kimberly    Posted 03-31-2021 at 22:15:53 [URL] [DELETE]        [Reply] [Email]  
  • Re: Broken Bolt Trans Cover - Extraction advice
  • I currently don't have the means to weld a nut to the bolt. I have been meaning to get Dad's little welder out and learn how to weld; I kick myself often for not getting Dad to teach me but I was scared of welding.

    Steve Dabrowski    Posted 04-01-2021 at 15:41:32 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Broken Bolt Trans Cover - Extraction advice
  • Is there no one near you that can give you a hand with this?

    Kimberly    Posted 04-01-2021 at 22:58:47 [URL] [DELETE]        [Reply] [Email]  
  • Re: Broken Bolt Trans Cover - Extraction advice
  • Afraid not. I am pretty much on my own. I use to have a friend that I turned to for help but he was murdered by a druggie.

    Jack - Iowa    Posted 04-01-2021 at 07:30:39 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Broken Bolt Trans Cover - Extraction advice
  • There is no time like the present to learn to weld.

    Assuming you also have a welder's hood, get the welder and a piece of scrap steel out. Depending on how it has been stored you may have to purchase new rod. 6010 is a good starter rod.

    Get comfortable and strike a arc. Almost undoubtedly you will stick the rod at first. Twist it off and try again. You may be surprised how soon you are able to get and hold that arc. Practice make perfect and I know of no other way to learn.

    Set your amperage about mid range to start. Type and size of rod will determine the proper setting. May want to start on the high side and reduce as you get more comfortable with it.

    I don't weld frequent enough any more to stay proficient so have to relearn each time.

    Jack - Iowa    Posted 04-01-2021 at 07:32:40 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Broken Bolt Trans Cover - Extraction advice
  • Should have said to wear old clothes as likely they will get a few holes burnt into them. A leather blacksmiths apron would be great!

    Kimberly    Posted 04-01-2021 at 10:41:08 [URL] [DELETE]        [Reply] [Email]  
  • Re: Broken Bolt Trans Cover - Extraction advice
  • Thanks. I am going to dig the old welder out and see what it needs. I will have to order some rods. What rods should I order?

    TheOldHokie    Posted 04-01-2021 at 15:11:40 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Broken Bolt Trans Cover - Extraction advice
  • Depends on the welder. Is ot an pld AC buzz box, AC/DC, or something else?

    TOH

    Kimberly    Posted 04-01-2021 at 23:02:31 [URL] [DELETE]        [Reply] [Email]  
  • Re: Broken Bolt Trans Cover - Extraction advice
  • It is an old AC arc welder that Dad had. I intend to get one of the newer self darkening helmets; they have the UV filters. I need to pull it out of storage and see if the thing still works.

    John in Mich    Posted 03-31-2021 at 15:32:48 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Broken Bolt Trans Cover - Extraction advice
  • Several options and I'm sure other folks will chime in.
    1. Take the trans cover off. There may be enough bolt to grasp vicegrips then.
    2. "Easyouts" Get a small set and the right size drill bit. Cheap Be careful of steel chips into the trans.
    3. Weld a nut onto the broken bolt. Puts a head on the bolt and the heat may help loosen it.

    Kimberly    Posted 03-31-2021 at 22:20:28 [URL] [DELETE]        [Reply] [Email]  
  • Re: Broken Bolt Trans Cover - Extraction advice
  • I attempted to take the cover off but there is a bolt in the middle at the front near the dash that I could not get a spanner or socket on. It would seem the dash would need to be off. I will look tomorrow to see if perhaps the bolts on the dash can be loosen to allow the dash to be moved out of the way.

    I like the idea welding a nut on; I looked that up on the net to see how it is done and it appears to work well. However, at the moment I don't have the means to do that.

    Michford    Posted 03-31-2021 at 20:25:30 [URL] [DELETE]        [Reply] [Email]  
  • Re: Broken Bolt Trans Cover - Extraction advice
  • I like your suggestions 1 and 3. Skip suggestion 2, not very good odds on success with an "easy out". A better name for easy out might be problem increases lol.

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