Broken Head Bolt

[slowride]

Looking for a good way to get this thing out without doing any more damage ive sprayed it it with oil - used vice grips - hammered it - and cant get it to move.

Anybody got any good back yard solutions ?

[cbuczesk]

Put a large nut over it and weld it on. The heat should free it up and the nut will let you get a good grip. That trick works everywhere else.

Chuck

[Fico]

Chuck's method is great with the right tools, but if you dont have a welder here are some options Ive used.

heat (via a torch) and cold (via duster upside down) to create a few thousandths of play before.

heat the block cool the bolt, depending how far down you can get, and have the vice grips on it.

if there is enough undamaged thread exposed get two nuts that fit and jam them together. then wrench!

[Wade Nelson]

Dry ice is another trick.

[slowride]

Trying to gt my hands on a welder as we speak trying not to buy one for limited use only im sure it will pay for itself

over time but for now i just need to get this bolt out. thanks for your replies.

[siteunseen]

I had one broken on mine when I bought it. Head was rolling around my valve assembly. I took the cylinder head off and the bolt was sticking up about 6". Vise griped it. But you may not want to remove the head. It only takes a couple of hours and is cheaper than a welder. Threads are in the block only.

Edited June 22, 2012 by siteunseen

[slowride]

the head is off and there is enough of the bolt showing to vice grip but it wont turn and i don't want to strip it so while welding seems to be the way to go i don't have a welder or access to one unless i buy one ( Hard Times ) so until that happens im stuck i just thought someone might have a way that i haven't tried to get this thing out.

[cbuczesk]

Spray it with PB Blaster or something good like that. Hit the top of the bolt with a hammer. Sometimes that will break the bond at the threads. Clamp your vice grips really tight and put a bar on the end for some leverage. Smack the bolt with the hammer while you try to turn the bolt. Keep hitting it with PB Blaster.

Is the engine out of the car? Can you haul it to a welding shop to have a nut welded on? You'll be surprised how well that welding trick works!

Chuck

Edited June 22, 2012 by cbuczesk

[LeonV]

Either use a lot of heat and rust penetrant while using vice grips, or have a mobile welder come by and weld the nut on. Should cost you maybe $50-100.

[slowride]

O.K. used Rust penetrant - Hit it - Drilled it - Heated it - Vice griped it.

That bolt is stuck and the little bit of it that is still there is laughing at me.

this would be funny if it wasn't me so i need to see it from an outsiders point of view. laughing at myself no big deal

I will get back to this at a later date.

[siteunseen]

That's the thing to do, step back and think it over, you'll figure something out. It's almost been 8 months on mine from walking away. Hopefully it's not a car you have to drive. Uh I meant have to use daily. Of course you have to drive it, they hard to push.

Edited June 22, 2012 by siteunseen

[cbuczesk]

Are the vice grips slipping or is it too tight to turn? Maybe try a pipe wrench. Keep hitting it with rust penetrant! I wouldn't drill it unless it breaks off flush with the block.

Chuck