[snowman]

The stud is NOT held in by pressure from the case! It is held in by loctite, a glue. If you break the bond of the glue, the stud will not be held in, heat does this. A small ammount of heat will weaken the bond, but not break it, so much effort is still required, the right ammount of heat, DESTROYS the bond.

There is almost NO temperature difference between the stud and the case, no matter which one you heat up first. Heat will make the case expand a little more than the stud, due th the difference in coefficients of expansion, so something may be gained, but again due the the intimate contact between the case and stud there is NO practical temperature difference between them.

You may say it is dead wrong, but you are wrong in saying so. IT WORKS. IF you have tried this and the stud dosen't back out very easily, it is because you didn't get the stud hot enough to break the glues bond. Once this bond is broken the stud will almost fall out, ie not much more than finger tight, unless the threads have been buggered. I have done this repeatedly, I have seen this done repeatedly, I have been told that it works by a professor of automotive machine shop technology, who has been using this method and teaching it for over 30 years, I have seen this demonstrated a dozen times, without failure, I have done this myself untold times without failure, IT WORKS!