stud extractor

[Toph]

[quote author=python link=1314965424/6#6 date=1314993715]Don't use an "easyout" they are more trouble than they are worth, like Darren says, if you break one off, you're stuffed, if the thread is protruding a little, wind a nut onto the thread, weld the nut to the protruding thread and gently wind out with a spanner, the heat in the welding process will usually free off the broken stud. (assuming you have access to a welder!)

thats the way i do it when the skid steer shears its hydro pump bolts, dont know if a manifold stud will take it??what if i were to give it a roasting with the oxy actylene first?[/quote]
localised heat will help, but be careful not to heat it too much, you might melt the aluminium cylinder head .

[470four]

[quote author=Rossio link=1314965424/8#8 date=1315026567][quote author=python link=1314965424/6#6 date=1314993715]Don't use an "easyout" they are more trouble than they are worth, like Darren says, if you break one off, you're stuffed, if the thread is protruding a little, wind a nut onto the thread, weld the nut to the protruding thread and gently wind out with a spanner, the heat in the welding process will usually free off the broken stud. (assuming you have access to a welder!)

thats the way i do it when the skid steer shears its hydro pump bolts, dont know if a manifold stud will take it??what if i were to give it a roasting with the oxy actylene first?[/quote]
localised heat will help, but be careful not to heat it too much, you might melt the aluminium cylinder head .[/quote]

+1

Engines arent designed to be torched.

Blowtorch at the very most...

[Rossio]

cool thanks guys

[Jon_W]

Don't use an "easyout" they are more trouble than they are worth, like Darren says, if you break one off, you're stuffed, if the thread is protruding a little, wind a nut onto the thread, weld the nut to the protruding thread and gently wind out with a spanner, the heat in the welding process will usually free off the broken stud. (assuming you have access to a welder!)

That's the best method in my opinion.

[Rossio]

does anyone else have an external stud extractor? please

[jonneyflame]

ive done the same on a couple of my bikes, stud extractors have nearly always snapped what was left of the screw off, I always heat the stud (only with a small blow torch) then when its good and hot spray it with either a can of "freeze your nuts off" (around £10 from halfords) or turn a can of compressed air upside down, and spray directly onto it, it cools it down very quickly. the resulting contraction of the nut usually means i can turn it with grips.

good luck, im in swindon this weekend and have some freeze your nuts off left if you wanted it

[470four]

does anyone else have an external stud extractor? please

I take it weldings not an option then?

How much thread is left? If there's enough to get two nuts on (unlikely...) you can tighten the two nuts together, undoing the one nearest the engine will spin the stud out.

[Rossio]

well it is but i gotta push it to work to do it..... steve il give you a shout if its not out bu then mate ta

[jonneyflame]

i do have a couple of stud extractors too, depends what size you might need

[t1pper]

The welding trick is best but I try to build up a bit of weld on the exposed stud first, try and get at it from all angles attaching weld where you can, even with a flush stud you can build up a dome of weld on top.
A mig is best as it is most controlable.

This also gets some heat on the job, then slip a much larger diameter nut over the welded stump and weld the two together, the bigger nut alows more weld to grip the stump even down the sides.

By this time you will have enough heat from the welding alone, next rock the nut back and forth looking for any movement do not be greedy and wind it out in one movement, go little by little the stud will wind out. Never failed me yet

Lastly never had any luck with an easi out dont go there. :'(