Water pump bolt broke/stuck into the block. Any ideas how to extract it?

[62maxx]

Any and all ideas are welcome!

 

[dadsbee]

Thread a nut on it, weld the **** out of the center with a MIG and turn it out. The welding heat should break it loose.

 

[62maxx]

All ideas are welcomed...!

 

[62maxx]

Thread a nut on it, weld the **** out of the center with a MIG and turn it out. The welding heat should break it loose.

THANKS!

 

[dvw]

Build up the end of the bolt with weld. Weld a 7/16" nut over the build up. It'll come out like it's buttered.
Doug

 

[pnora]

Try the heat and wicking wax into it several times. Each time give the broken bolt a few hits with a hammer.

 

[Charles Cook]

Weld a bolt to it and spray it down good with penetrating oil and try to remove. Another way would be to take a flat piece of aluminum, drill a whole in it the size of the broken bolt, slide it over the broken bolt and then weld a nut on it. The weld won’t stick to the aluminum. Good luck. When you put the nut on it weld up the whole in the nut.

 

[Dave6T4]

Screw a nut on it and weld through. Turn it off with a wrench.

 

[Geoff 2]

But if the weld breaks.....
Heat it up red hot & add candle wax while hot. Let it cool down & should come out with vice grips on the threads. If not, THEN try welding.

 

[68gtxman]

Or…do the wax trick. Then Dremel a slot in it and then screw it into the block. The bolt may have broken off because the end inside the block is grossly rusted and swollen. There is a chance that it won’t come out at all because of that.

 

[Rebelrouser]

I have removed a bunch of broken bolts in my time; the wax and welding tricks are both good methods. But I just about guess the bolt broke because the threads are corroded in the water jacket. When I decide on a method to remove a broken bolt, I never limit myself to one method.

I would drill it out and clean the threads with a tap. If you weld it and it does not come out you will make the metal a lot harder to drill, and drilling is about the only method left if welding a nut on it does not work. If you do the welding method, make sure you try to remove the bolt while still hot, the heat will help the threads expand the block. Also, before welding the nut, take a hammer and smack the end of the bolt to help loosen corrosion on the threads in the block.

 

[rickseeman]

Thread a nut on it, weld the **** out of the center with a MIG and turn it out. The welding heat should break it loose.

That's the way I do it and so far it has never failed. I was working on a 55 year old Road Runner last year (that was all original) and I could feel that the bolt was going to break. Not wanting to get involved with fixing that in the car I just quit trying to turn it and we rolled the belts off and then rolled them back on again when we got done. The guy said he was never going to drive the car anyway.

 

[zyzzyx]

Dadsbee and Dave6t4 are the best way!

 

[eldubb440]

make sure the weld is good and hot....... it'll come right out

 

[dvw]

Welding the nut not only gives you a grip, but it loosens the rust at the same time. Weld it spray it down with water. Most of the time it back right out on the first try. I've done a bunch of them. Especially broken exhaust manifold bolts. Never had one that didn't come out.
Doug