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Old 09-01-2011, 11:04 PM
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broken e-z out in a 1/4 -20 broken flush to the shaft

Ok, Heres the deal... I have a bolt that snapped flush with the transmission shaft , and upon using e-z out , it snapped as well. Dropped the rear end and now I am looking for any additional help to safely remove both snapped threads and resume repair of gear shifter.I am not sure if loc-tite was used on 1/4 -20 or not... Any suggestions??? Thanks Mary
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Old 09-01-2011, 11:15 PM
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You'll need a really high quality cobalt drill bit to drill the easy out so look for one that will match the ez out diameter if possible. This must be a cast iron case so use some heat when you try another ez out.
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Old 09-01-2011, 11:21 PM
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I have set a nut on top of the broken stud and the mig welded it. The HEAT helped loosen the threads and the head of the nut gave me something to get ahold off with a wrench.

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Old 09-02-2011, 06:20 AM
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I have had luck with a plasma cutter burning the easy out enough to extract the remains and maintain the thread integrity. Would not want to make a practice of it and do recommend "suiting up" for the task because hot spew sparks go every where.

Trees
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Old 09-02-2011, 06:59 AM
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Trees, great idea on the plas. I have very gingerly done the same thing with a cutting torch.
I find that when I try to free hand drill out something that is harder than the metal around it that the bit ALWAYS walks off and wrecks the hole.
This doesn't help right now but I would go get that set of twist in easy outs and throw them in the trash, they cause way more problems than they solve. Get the square tapered ones, they are softer and don't break off. Also I ALWAYS used a left hand drill bit first when drilling out broken off bolts, many times they will just bring the broken bolt right out.
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Old 09-02-2011, 07:46 PM
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I have never found a drill bit that would touch a broken EZ Out. The suggestion Deuce had has worked for me before. The heat of welding changes the hardness of the EZ Out making it easier to extract.

Vince
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Old 09-02-2011, 08:20 PM
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For broken studs, 1 - 1/4 inch for steam turbine shell clamping in the power plant I worked in, we bought cobalt drills that would drill those out, and after a year of high pressure super heated steam in the shell, they were very hard!

But I'm with 302, with an ez out in a 1/4 inch, flush break...yeah, nuke it!
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