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The most effective way to remove broken pin

Broken studs are one of the common defects that a motorist may encounter. Studs are used in many parts of the car. But if you do not have a car, this does not mean that you will never get into this situation, because a bolt can also break.
The way to remove the debris, which I will show, it seems to me, is one of the simplest and most effective. It will fit even when the chip has sunk deep inside by 2-4 mm.

We remove the chip pin


So let's get started. To begin with, we measure the diameter of the stud on its fragment remaining on the outside. In my case, it is 8 mm in diameter.
The most effective way to remove broken pin

We take a wooden block, and paste 3 layers of masking tape on top of it. Then we make a hole in all three layers with a diameter one millimeter smaller.
The most effective way to remove broken pin

We cut out an arbitrary contour. And we got such a gasket.
The most effective way to remove broken pin

Glue it on the hole with a piece of hairpin. This gasket will protect the threads during welding.
The most effective way to remove broken pin

Next, you need to take any L-shaped steel corner 2-5 mm thick. And drill a hole of 7 mm in diameter in it.
The most effective way to remove broken pin

On the reverse side, make a hole for the cone with a large drill.
The most effective way to remove broken pin

We put a corner on the hole and fix it with segments of masking tape so that it does not fall during welding.
The most effective way to remove broken pin

The holes must match exactly.
The most effective way to remove broken pin

Welding time. It is advisable to use a semi-automatic welding machine. Well, if not, take an ordinary one with a thin electrode.
The most effective way to remove broken pin

First, fuse the layer onto the chip.
The most effective way to remove broken pin

This is how it looks after the first time. Let's wait a bit.
The most effective way to remove broken pin

We weld another layer for reliability.
The most effective way to remove broken pin

Well, now, you can try to unscrew the hairpin.
The most effective way to remove broken pin

Everything went fine. Welding warmed up the chip and it became easier to unscrew.
The most effective way to remove broken pin

So it looks close.
The most effective way to remove broken pin

The most effective way to remove broken pin

We put a new hairpin


As you can see, neither the thread nor the area around, nothing was damaged after welding. Sand the pad with sandpaper.
The most effective way to remove broken pin

We take a new hairpin, screw on it two nuts on one side and pull them to each other.
The most effective way to remove broken pin

Screw into the block with a wrench.
The most effective way to remove broken pin

Remove the nuts.
The most effective way to remove broken pin

Here is such a simple and very effective way. At least this is easier than drilling a flat hole for the extractor, which in my opinion is incredibly difficult.

Watch the video


come back
Comments (26)
  1. Guest Alexander
    #1 Guest Alexander Guests July 2, 2018 11:04
    5
    We drill the chip with a 9mm drill, cut the thread and screw the adapter pin (10 mm into the 8 mm case for connection ..... AND EVERYTHING!
    1. cut off
      #2 cut off Guests July 9, 2018 08:57
      1
      under m10, reduced 8.5 to standard thread
  2. Guest Sergey
    #3 Guest Sergey Guests July 2, 2018 12:39
    23
    welded a nut the same effect without troubles
  3. Guest Andrey
    #4 Guest Andrey Guests July 2, 2018 15:24
    4
    Well, why this hemorrhoids with drilling corners? You take a tube of a smaller diameter, which is linear so that it sticks out by 15 mm and welds. And if it broke off without a depression. then stupidly welded a nut and all.
  4. Guest Nikolay
    #5 Guest Nikolay Guests July 2, 2018 7:47 p.m.
    2
    Krasava!
  5. Azat
    #6 Azat Guests July 2, 2018 8:53 p.m.
    3
    In no case can you turn it off immediately after welding, the stud must cool and decrease in size.
  6. Anton
    #7 Anton Guests July 3, 2018 07:27
    8
    But just to weld a nut is not fate?
  7. Arbi
    #8 Arbi Guests July 3, 2018 8:21 p.m.
    0
    troubles more with scotch tape and so on, although for lovers of order!
  8. Peter
    #9 Peter Guests July 4, 2018 18:30
    1
    just a nut is welded and that’s all. if it’s not a simple iron (aluminum, cast iron, etc.) you can have a larger size if the electrode.
  9. Guest Victor
    #10 Guest Victor Guests July 4, 2018 8:19 p.m.
    0
    It was just luck.
  10. Bobrovsky
    #11 Bobrovsky Guests July 4, 2018 9:05 p.m.
    5
    Well I do not know. More than once I had to "fight" with broken off studs and welding, I never used. He turned the center, drilled a 4 mm hole to the very end of the stud, and then drilled it with a thicker drill, but so that the thread was intact. As a result, with an awl, I picked out a couple of revolutions of the burr remaining in the thread. And then he drove out the rest with a tap. But for this you need to have a good eye and hold the drill so that the drill goes exactly in the center of the stud. Well, to know the diameter and thread pitch of the studs that you are going to drill. For example, if the thread is M-10x1.5, then you need a drill of 8.4 mm, or in extreme cases 8.5 mm, but this is if the drilling is very accurate in the center.
  11. Igeria
    #12 Igeria Guests July 4, 2018 9:51 p.m.
    10
    Bullshit, the hairpin breaks off when unscrewing, that is, it becomes so acidic that when it turns out it becomes dead, even if you weld a corner, even a nut, it breaks off one thing. and in the video he broke it with a hammer, most likely she would have gotten out of it anyway. I have already drilled so many of them while retaining the thread. Much harder to tilt in the center. Sometimes you have to sharpen the guides for the drill.
  12. Seva
    #13 Seva Guests July 6, 2018 3:10 p.m.
    0
    In this example, how and what is more familiar and simpler, what is at hand - and does.
  13. Mukhanik
    #14 Mukhanik Guests July 6, 2018 10:57 p.m.
    0
    drill the stud with a smaller diameter and pull out the extractor faster
  14. Farit
    #15 Farit Guests July 7, 2018 03:02 a.m.
    0
    There are many approaches. Before unscrewing, see how bolt is fastened! Hammer, swipe to spin or heat with a gas heating pad. blush
    1. Guest Anatoly
      #16 Guest Anatoly Guests October 6, 2018 12:22
      0
      It so happens that warming up does not help.
  15. Guest Eugene
    #17 Guest Eugene Guests July 7, 2018 04:53
    3
    This (hemorrhoids) is not smart for you. For young people, knowledge of the elderly, success in the future. Situations are different, it is not always possible to increase the thread and weld a nut much more difficult than a corner (try, you will find out) and a strip with a hole can always be found (if you do it yourself) doing something)
  16. Bartholomew
    #18 Bartholomew Guests July 18, 2018 15:03
    1
    I encountered such a problem when I was still a pupil of a locksmith. Welded a nut, began to swing the hairpin gradually, but it curled up, and the hairpin remained stuck in the “body” - for the same reason from which it once broke. He poured kerosene until morning, neatly turned it over, drilled it deeper and drove the tetrahedron into it, which turned up under the arm - the file shank. Gradually he rocked it. All this at the level of improvisations of a subjective nature. Why do I like the work of a locksmith!
  17. Boris
    #19 Boris Guests July 22, 2018 9:35 p.m.
    1
    Everything is easier. We drill a hole of a smaller diameter in the broken hairpin. We take an unnecessary (broken, burnt, dull) drill and grind its shank on a sharpener by a square or a triangle, at the end it is smaller in size than the resulting hole, and then a little more. We hammer it into the hole (not very much), then with the pliers or a jaw we clamp the other end of the resulting “tool” and simply unscrew the chip pin. It works, I used it myself.
  18. Boris
    #20 Boris Guests July 25, 2018 11:09
    0
    Forgot one subtlety - after screwing the studs, we begin not to unscrew the top nut, but to tighten the bottom. Also, aluminum studs can be etched with acid because they will not get warm enough by welding
  19. beautiful
    #21 beautiful Guests July 26, 2018 2:04 p.m.
    1
    just weld a nut and fuck up the woods.
  20. a lion
    #22 a lion Guests July 27, 2018 08:45
    1
    we take Pepsi, we pour it out, after half an hour we take a drill at 5.5 - 6 mm and carefully drill it, it's the Hairpin !!
  21. Guest Alex
    #23 Guest Alex Guests July 28, 2018 18:29
    1
    Nobody heard about extractors during the campaign?
  22. 111
    #24 111 Guests July 29, 2018 07:11
    1
    you can weld a nut
  23. Timothy
    #25 Timothy Guests July 29, 2018 2:00 p.m.
    2
    Weld the nut and everything, or drill and cut a larger diameter, and put the repair stud. And do not create so much hemorrhoids
  24. Valera
    #26 Valera Guests July 31, 2018 11:08 p.m.
    0
    you can just knock with a chisel or a screwdriver. the nut broke, no interference

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