I have a propane cylinder from a former job with a torch on it. It comes out as a broad flame. Not bad for heating a rusty bolt if enough space around it.
I have a damaged Torx screw-head through the windscreen hood-mount bracket. The bolts are over-the-top threadlocked when assembled.
I want to apply heat to soften the threadlock. I haven't looked at the cost of a small blowtorch, but don't know if that's what I should get, or replace the 'gun' on the cylinder I have.
Plastics are off, & have a replacement latch bracket.
Advice/suggestions please.
My vote would be for a Dremel Versatip ... blowtorch (small flame), gas powered soldering iron and comes in handy for melting heatshrink too. Nice and small to use in tight spaces too.
I never even considered heating mine but went straight for drilling them out. I would have been afraid of cracking the windscreen.
The metal is so soft that by the time you realise you have a problem, they are probably already rounded off anyway to be no good to grip even with heat. Being a soft metal, not sure if they would expand too easily themselves with heat?
To my mind, the threadlock they use is completely inappropriate to the metal of the screws.
I ended up getting a garage to finish them off for me as even drilled through, I couldnt get them out and they said it was a nightmare job.
Good luck.
I should have added that I have a pretty powerful gas soldering iron with a torch fitment.... not enough heat.
The right tool to use is an impact gun. D1ck Sloan can remove them in 2 seconds.
I don't want to try drilling yet. Rarely goes well for me. I have some experience of heating threadlock & know it works.
I used an Erbauer Bolt and nut remover on a couple of mine that were a bit knackered - genius bit of kit
Quote from: tets on May 7, 2020, 08:25I used an Erbauer Bolt and nut remover on a couple of mine that were a bit knackered - genius bit of kit
I have a set for hex bolts. This is a domed Torx, - have you got something that does those?
The number of people on here that have used heat on bolts, - can't believe the lack of responses.
I have this set Gaz - worked a treat as it still gripped the dome https://www.screwfix.com/p/erbauer-bolt-nut-remover-set-6-pcs/6083d
Quote from: tets on May 7, 2020, 09:33I have this set Gaz - worked a treat as it still gripped the dome https://www.screwfix.com/p/erbauer-bolt-nut-remover-set-6-pcs/6083d
Hmmm....same set I have...I think I tried before in faint hope....I'll have another go.
You can buy an induction heater for a safe way to heat the bolts, that is how I got my manifold nuts off.