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Unread 08-17-2011, 07:41 PM   #1
houd1n1
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How to get broken bolts out

exhaust manifold to head cylinder bolts are broken. both of them. Whats the easiest way to get them out? and how would I do that?
Please help, its causing my jeep to whine and whistle.. :/

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Unread 08-17-2011, 07:47 PM   #2
phil1330
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Drill a hole in the bolt, then get an easy-out to back it out.
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Unread 08-17-2011, 07:48 PM   #3
Moto4x4
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Yell at em for a while and they will back out

But yea easy out is the way to go.
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Unread 08-17-2011, 07:51 PM   #4
tdewit
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Took the head to NAPA, $14 a piece, well worth it.
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Unread 08-17-2011, 08:37 PM   #5
TheNewbie
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+1. Just get a set of easy outs. If you don't have one now you'll need one at some point. Owning a YJ without owning a set of easy outs is kind of blasphemy.

You drill a hole in the middle of the bolt, then use the easy out to back the broken bolt out. It's kind of like a drill bit that has been cut in reverse. So when you turn it counterclocwise it wants to dig deeper into the hole that you just drilled. This causes it to bite into the metal and you can turn it right out.
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Unread 08-17-2011, 08:40 PM   #6
sbsg2005
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Just don't break the easy out off or you will be hating life.
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Unread 08-17-2011, 09:16 PM   #7
Ziptied
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Quote:
Originally Posted by sbsg2005 View Post
Just don't break the easy out off or you will be hating life.
Yeah, I just did that tonight. Now I'm trying to figure out how to drill through chrome vanadium steel.
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Unread 08-17-2011, 09:36 PM   #8
Peter Nuss
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Just get a nut and place it over the broken bolt. Then weld the nut to the broken stud thru the hole in the nut. Then just unscrew the nut with the stud attached. Might take two or more time to weld it right if you are not a good welder.
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Unread 08-17-2011, 10:06 PM   #9
Ziptied
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Not sure that would work since the bolt actually broke off inside the head. Meaning it's about 1/16 or more from the opening. I wouldn't want to jack up my threads.
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Unread 08-17-2011, 10:55 PM   #10
MJMPC
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Drpll it out oversized and put a heli coil in it.
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Unread 08-17-2011, 11:04 PM   #11
houd1n1
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Thanks everyone I will try it soon. Is it possible to do it without taking off the head?
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Unread 08-17-2011, 11:08 PM   #12
Anticanman
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Yes it is, take your time and try not to feel overwhelmed by it. A good set of easy outs will help fix your problem.
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Unread 08-17-2011, 11:36 PM   #13
cubewhiz
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Quote:
Originally Posted by sbsg2005 View Post
Just don't break the easy out off or you will be hating life.
Been there, done that. It sucks.
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Unread 08-18-2011, 09:50 AM   #14
Green95YJ
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Man, if you want to drill it and then use an Easy Out make sure you center punch and drill a small pilot hole and then a larger hole. The larger hole needs to be almost out to the threads. If you do this and use a square easy out you wont have a problem. Biggest mistake is drilling a small hole and then snapping the easy out off. When you get the bolt out it should resemble a helicoil.
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Unread 08-18-2011, 08:34 PM   #15
Ziptied
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Well I snapped the easy out of in te damn bolt. Any ideas how to drill through it? I have a cobalt bit but it isn't doing anything. I to the point where I want to exchange heads!
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