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Old 09-22-2017, 10:00 PM   #1
Rat
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Rounded Head Bolt

So I am removing the head from my 1992 accord. I busted the socket i was using and rounded the head beyond any hope of extraction. Now, i need to know the best way to at least cut the head of the bolt off so i can finish removing the old head. I should add that the head is already badly damaged so im not afraid of damaging it further. Should i drill through the side of the head into the bolt? Or does someone have a better idea? Thanks.
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Old 09-22-2017, 10:40 PM   #2
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Which bolt and where exactly is it located? Pictures do help as there are a lot of options depending on how much of the head is left, where it's located, etc..
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Old 09-22-2017, 10:44 PM   #3
Ghostwhite
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It would help to know which bolt specifically, maybe even a picture. I have used a few different methods on bolt extraction but my favorite if possible is probably a vice-grip as tight as you can possible get it.

If you can sometimes it helps to heat the bolt head with a handheld torch and melt some crayon wax into the threads.

If you have to cut the head off you will still have to get the rest out and its easier if there is something left to grab.

Edit: Too slow, Jon covered most.
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Old 09-22-2017, 11:32 PM   #4
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Old 09-23-2017, 01:50 PM   #5
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They do make sockets that are designed to grip stripped bolt heads; check your local hardware or auto parts store.
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Old 09-23-2017, 03:52 PM   #6
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Quote:
Originally Posted by fleetw00d View Post
They do make sockets that are designed to grip stripped bolt heads; check your local hardware or auto parts store.
I have one of these. It's called gator grip/ so far it's been 50/50 with it working.
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Old 09-23-2017, 09:28 PM   #7
illinois_erik
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Pound one of these bitches on there, its coming out. Make sure next time you use the right size socket
https://www.harborfreight.com/9-pc-3...set-67894.html


that gator grip is some cheesy crap for bored housewives to order from the home shopping network, for their husbands who will a)never use them b)if they do, it breaks. plus itll be too large in diameter to fit (the other ones might even be a shade to large too.

if the head is garbage, sawzall it away and chisel out the last bits so you dont mar the blocks mating surface. there will be enough of a stud left to grip with vice grips or weld a nut on.
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Old 09-23-2017, 09:55 PM   #8
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Not all methods or tools work for every broken bolts or screw, so you kind of stand back and look at what you're dealing with.

Left handed drill bits works well for 50% of the screws/bolts. Just make sure you have a good centerline on the bolt before drilling. Cutting the top of the screw/bolt flat and using a punch to get a center is a good start.

If you have a good amount still sticking out, welding a nut onto the broken bolt can work. Same with those bolt extractors. The ones Erik posted that grab onto the outside of the bolt work way better than the ones you try to drill a hole into the bolt with and try to screw it out (aka easy-outs... never had luck with them at all).


Hope the OP has had some luck...
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Old 10-17-2017, 06:54 PM   #9
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Happened to me a few months back, I used a smaller socket 13mm 6pt. I hammered it on til it fully seated. And slowly turn the stud. Had 3 stripped bolts and all came out easy
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