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MG MGB Technical - thermostat housing studs[removal]

How do you remove rusted-in thermostat housing studs, I have managed to remove one but the other two are really stuck.
J E Turner

Soak with a good penetrating oil over night then use 2 nuts, the top one acts as a jam nut so you undo using the bottom one.
K Harris

Hey,
Great advice.
James Huggins

And if need be, add heat with a torch.

Charley
C R Huff

JE - A trick that I learned that works quite well is to heat the stud/head area as hot as you can get it with a torch, then touch the junction with candle wax (I use the little birthday cake candles for this) until you have a puddle of wax around the stud then let the area cool a bit. The hot wax seems to be pulled down along the threads as the area cools and the double nut routine can then be used to back the studs out. Cheers - Dave
David DuBois

The wax is a little known trick that works so well you won't belive it. RIC
RIC LLOYD

Dave-
Yep, an 'ol timey mechanic's trick that still works when those new-fangled penetrating oils fail.
Steve S.

There is a good chance that the double nut trick will just rip the threads.
Buy a good quality camlock stud remover (the more you pay for it, the cheaper it is as it will last a lifetime) and then use any other tricks advised.
Geoff F.
Geoff Farthing

Thanks everyone for your advice, job now done with the two nut trick.
J E Turner

When you put the new studs in, don't forget to use thread sealant on them. That will stop coolant rising up the threads and causing corrosion in the future.
Miles Banister

Wax??? I learn something new everyday. Cant wait to try that myself!
Bryan

Will get those candles on my next birthday for future use. Thanks for the trick.
G L Gimbut

This thread was discussed between 07/09/2008 and 14/09/2008

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