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Thread: barrman : How Would You Do This?

  1. #1
    Join Date
    Dec 2003
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    Giddings, Texas
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    7,729

    Default barrman : How Would You Do This?

    How Would You Do This?
    Post by barrman on Oct 3, 2006, 8:20pm

    Pictured below is a 8,000 pound Ramsey winch I use on my trailer. A few months ago, when the turn it green craze hit, I took the winch and frame to work. My plan was to let my students take it off the frame, prep both for paint, go over the motor, paint it all and put it back on the trailer. Well, the two broken off bolts you see on the lower level is what happened. One of my stronger bodied, but weaker minded students broke off 5 of the 8 mounting bolts before he told me something didn't seem right. I have drilled and tapped the other 3 out. I just need to make these ones right. The only problem is that I can't get a drill with a smaller than the 5/16" drill bit in there. The chuck hits the upper housing in the picture. I was thinking about welding an extention onto a drill bit and hoping I got it straight enough to drill. The housing doesn't look like it will come apart enough to make taking it off worth while. I have tried 3/8" electric drills, 3/8" cordless drills, air drills, 1/2" drills and 5/16" angle drills. All hit.

    What would you do?

    Thanks.


  2. #2
    Join Date
    Dec 2003
    Location
    Lone Pine, CA
    Posts
    451

    Default luckypabst :

    Re: How Would You Do This?
    Post by luckypabst on Oct 3, 2006, 8:29pm

    Aircraft drill?
    http://tinyurl.com/erlpo

    You didn't say exactly what size but 1/4" is the largest offered in cobalt (which is what I'd use to drill out a bolt). The offer most all the common sizes in high speed steel if you need a larger bit.

    Also, Home Depot sells a 12" lg. 1/4" diameter drill bit but don't expect it to last terribly long if you're drilling a bolt like that.

    Other idea - if you have access to a MIG or TIG, carefully weld a hex nut onto the end of the bolt and turn it out with a wrench. Expect the threads to get boogered up so you might need a heli-coil set on hand or be willing to cut larger threads in there.

    Chris

  3. #3

    Default sermis :

    Re: How Would You Do This?
    Post by sermis on Oct 3, 2006, 8:29pm

    Installer bits from Lowe's. I think they have smaller sizes. ?? weld on an extension, maybe it will work. If there is enough stud up weld on a nut, maybe the heat will be enough to loosen the stud and it will come out.

  4. #4

    Default saxon :

    Re: How Would You Do This?
    Post by saxon on Oct 3, 2006, 9:04pm

    If that's an aluminum case, a guy at worked told me low voltage from a battery charger and some kind of acid dobbed on the steel bolt will rot it out of the hole, I know it sounds crazy but I saw the results before and after on a motercycle head. I'll try to get more info tomorrow. saxon

  5. #5

    Default robertcowan :

    Re: How Would You Do This?
    Post by robertcowan on Oct 3, 2006, 9:27pm

    TIM,
    LOWES SELLS DRILL EXTENSOINS. PUT THE EXTENSION IN DRILL, PUT BIT IN EXTENSION AND DRILL AWAY. ABOUT 20.00 BUCKS.
    BOB

  6. #6

    Default agengr :

    Re: How Would You Do This?
    Post by agengr on Oct 3, 2006, 10:36pm

    I'm probably missing something here, can't you drill from the other side?

  7. #7

    Default jeepistdougiowa :

    Re: How Would You Do This?
    Post by jeepistdougiowa on Oct 3, 2006, 11:08pm

    You can get the long drill bits like Chris posted at true value hardware...not sure if you have that chain there or not.

    Get a small piece of tube that will fit over the drill bit, but inside the hole if possible....copper works good. Anyway, helps keep the bit from walking off to the side.

  8. #8
    Join Date
    Dec 2003
    Location
    Giddings, Texas
    Posts
    7,729

    Default barrman :

    Re: How Would You Do This?
    Post by barrman on Oct 4, 2006, 8:14am

    It is a closed hole with the gear drive gears for the winch on the other side.

    Home Depot and Lowes have stores within 40 miles of me. I just seem to have a mental block about them and quality tools.

    Good suggestion on the tube to keep it from walking Doug. Thanks.

    Chris, that is the exact drill bit that will work. Thanks for the link. I imagine that it is the same as an installer bit Sermis mentioned.

    Bob, don't those extensions have a chuck in them? The chuck is what stops the regular drills from working. I was trying to figure out a way to make one of my "press fit" lathe bits work, but didn't want to screw one up.

    Saxon, I am real interested in the acid method. This thing has been sitting for months while I ignored it, it might as well sit a few more weeks while it fixes itself. Please post more info.

    Thank you all for the help.

  9. #9

    Default gregolma715 :

    Re: How Would You Do This?
    Post by gregolma715 on Oct 4, 2006, 8:32am

    There used to be alot of long shanked drills at flea markets around here, before the aircraft industry totally pulled out.

  10. #10

    Default davea :

    Re: How Would You Do This?
    Post by davea on Oct 4, 2006, 9:34am

    I'm with Chris, weld a nut to the broken bolt. The heat will help loosen it.

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