help! stud extraction from head

got one today

not long in tho so will try it tomoro morn. here's hoping

 

Give it the blowtorch and fire extinguisher treatment first if you can - it'll crack the corrosion loose and make it easier to unwind. Even the torch alone will make a big difference. And do make sure you give it a good blatter with a hammer first - again, it cracks the corrosion a bit and gives you a much better chance of getting it out!

 

right, used blow torch on it for fecking ages.... and hammered it.

tried to use fire extinguisher on it and forgot it was a powder one

then used that stud extractor - did nothing but chew it up and grind bits off the stud [:^(]

stud extractor does from 6mm - 19mm but it must be smaller than that now as no longer catches it.

stud seems really soft - even mole grips are chewing it up.

stuck now [:^(]

 

try using a hacksaw and cut a groove/slot in the top and then use a flat head screwdriver bit in a socket!!!! failing that drill it out and re tap it!

 

Doubt the hacksawing a notch would work, as it seems it's seriously brittle. I'd weld a nut on the top of it, while theres still some of it left. What a pain in the ass though.

 

Yup, defo gonna need a nut welded on, the heat during the welding will most likely help release the thread aswell

 

hacksawing not gonna work - cheers anyway.

i don't have any welding equipment either.

Danger dave tututututseven is coming over

 

Drilled and retapped/helicoil it is then. Good luck

 

welding a nut on will cause the stud to expand making it harder to remove, drill it out is youre best bet then!

 

Congratulations, You're a retard

 

there's no need to get personal

 

Dont talk utter pish then

 

its simple science, you heat somthing metal it it gets hot and expands!!!!!!!!!

 

Dude, applying a source of heat to a siezed bolt is a proven method used by everyone, including professional mechanics. There is no debate.

 

And contracts when it cools

 

yeah ok no need for personal insults though

 

head and stud are different metals / alloys so expand and contract at different rates anyway

anyhoos... dave was here, drilled and retapped it. just need a new flange now

thanks muchness dave

 

LMFAO!!!!

 

Invoice is in the post.