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Restoration & Repair Tips Board

Help with broken stud!

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Russell Lowry

06-02-2006 18:37:44




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Boy, I did it this time!!! While removing the manifold from my Super C, I broke off a stud flush with the head. To add insult to injury, I then proceeded to break off an Easy-Out also flush with the head. Do any of you guys have a secret, or an "old trick of the trade" that might help me out?? She is a Grand Old tractor that just needed a little help and I screwed it up!! Help please! Thanks, Russ

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bill from wisc

08-06-2006 10:08:10




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 Re: Help with broken stud! in reply to Russell Lowry, 06-02-2006 18:37:44  
Russell, The posts below are all good. Something that I was showed and has never failed me since is to heat the bolt or broken off fitting to red hot with a torch. then as its cooling put bees wax onto it. The trick is as its cooling the bees wax is sucked into the threads. Use bees wax and not candle wax. Find a bee keeper and get a handful and you will be happy. If you are not good with a torch find a friend that is.

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jerrycpp

06-05-2006 17:21:40




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 Re: Help with broken stud! in reply to Russell Lowry, 06-02-2006 18:37:44  
To remove the broken easy-out: It's scary, but it works. Easy-outs are high carbon steel. Take your cutting torch, get the easy-out red hot, hit it with the oxygen. It will blow the easy-out completely out because it is so full of carbon, leaving the stud and hole for more work. Yes, I've done it, and it works. Yes, it's scary



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dr.sportster

06-05-2006 14:41:53




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 Re: Help with broken stud! in reply to Russell Lowry, 06-02-2006 18:37:44  
Sears has a craftsman carbide dremel type bit if you need to try to eat away at the easy out.Last time I did that I ran over into the female thread and had to heli-coil anyway.It was that Snap-on splined easy out type tool that you slide the splined nut over and turn.I went too small and snapped in the hole.Best bet is the nut welding trick.Even if it breaks off a couple times.Last time I did that it broke six times but unscrewed on the seventh try.Its so good when it finally comes out.

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souNdguy

06-05-2006 12:11:04




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 Re: Help with broken stud! in reply to Russell Lowry, 06-02-2006 18:37:44  
My guess is the washer and nut trick, will remove the easy out..( backwards..) and leave the stud.. then you can get back to drilling the stud out some more.. and use a bigger easy out..

Soundguy



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RustyFarmall

06-03-2006 14:17:31




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 Re: Help with broken stud! in reply to Russell Lowry, 06-02-2006 18:37:44  
Just like Timv said, place a flat washer over the stud, place a nut on top of the washer, and the weld right down the center of the nut onto the broken stud. Let it cool a bit, put your wrench on the nut, and turn the whole thing out. The next time you have that happen, take the EZ out, throw it in the trash can, and get out the welder.



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Russell Lowry

06-03-2006 17:07:03




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 Re: Help with broken stud! in reply to RustyFarmall, 06-03-2006 14:17:31  
To RustyFarmall: I have the maniford off the tractor. The broken stud and easy-out are not only broke off flush with the head but are actually an 1/8th inch into the head! I went to a tractor show today and talked over the problem with a bunch of "gear heads" and they just shook their heads!! I'm thinking of taking the head off (I hate to) and taking it to a machine shop to have it drilled out and rethreaded and possibly heli-coiled if necessary. What say you?? Thanks again, Russ

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RustyFarmall

06-03-2006 18:48:17




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 Re: Help with broken stud! in reply to Russell Lowry, 06-03-2006 17:07:03  
You said it was broken off flush, had I known it was broken off 1/8" down, it would have been a different story. The welding trick might still work, you will just have to be very careful to only weld right down the center of the nut, or, you might try to fashion a sort of "bushing" that will sit atop the broken stud, and have a big enough hole that the welding rod will pass into, and then set the nut on top of the bushing. Don't know, it's an idea. Your only other choice is to take the head off and take it to a machine shop.

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TimV

06-03-2006 19:30:50




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 Re: Help with broken stud! in reply to RustyFarmall, 06-03-2006 18:48:17  
I did this once using a piece of copper tubing (weld won't stick to copper) for the bushing. However, this was on flat surface where I could hold everything in place fairly easily. Don't know how it would work on a manifold. Of course, he could always just tip the tractor on its side..... :-)



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RustyFarmall

06-04-2006 06:44:36




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 Re: Help with broken stud! in reply to TimV, 06-03-2006 19:30:50  
Copper, good idea, never thought of it. I'll remember that tip.



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TimV

06-03-2006 05:57:21




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 Re: Help with broken stud! in reply to Russell Lowry, 06-02-2006 18:37:44  
I have the best luck welding a nut on the top--the heat from the welding helps to break things loose, and a larger nut gives you something to grab on with an impact wrench. Set the nut over the bolt and plug-weld the center full. If you break the nut off, weld another one on and try again. Also, though this sounds obvious, if you pull the rest of the nuts and take the head off, you'll now have some of the stud sticking up to get a grip on.

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TimV

06-03-2006 07:45:01




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 Re: Help with broken stud! in reply to TimV, 06-03-2006 05:57:21  
Oops--should have proof-read closer. Meant to say "take the MANIFOLD off"....



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JMS/MN

06-02-2006 20:50:54




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 Re: Help with broken stud! in reply to Russell Lowry, 06-02-2006 18:37:44  
I used to believe you could heat an EZ out and remove the temper, and drill it out- never had any luck with that. Since it is flush with the head- try welding a nut to it. Some people can torch it out. If the head is off the engine- take it to a shop with EDM.



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MikeinKy

06-02-2006 19:20:39




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 Re: Help with broken stud! in reply to Russell Lowry, 06-02-2006 18:37:44  
You didn't really have a problem until you broke the easy out. I have fought broken bolts for almost 40 years. I have been able to take a real good center punch and eventually break the easy out in pieces. You can't drill it with anything I know of. I usually don't fool with them unless I can see that the bolt loosens after I drill it out some. I also have some left turn bits, sometimes the heat from drilling will loosen it and the drill will grab and turn it out. Usually I end up drilling out to the edge of the threads and pick out the remains. It ain't easy.

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moseed

06-03-2006 08:33:03




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 Re: Help with broken stud! in reply to MikeinKy, 06-02-2006 19:20:39  
I use left turn drill bits and ezy-outs(last resort). If I have given the suspect bolt the proper considerations (penetrant and or heat and "TIME")and I still have broken it off then, because of the before mentioned good efforts, the broken stud or bolt almost always comes out with the left turning drill bits plus heat. I go from the tiniest bit I think I won't break through a selection getter bigger each time.You should skip a few sizes as you go up in size because if the fit is to close to the last bit size (hole that you last drilled)it can snap by suddenly binding in the hole and then presto, tears and jeers!

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