[snowman]

Loctite breaks down at a certain temperature, that is, it ceases to exhist. Thats why the loctite goes away, not any mechanical forces. The method does work. Ask anyone who has tried it. If you have not, do so. I have and it DOES work. As to corroded fasteners, it also does seem to work, I would hazard a guess that it is because of the difference in expansion rates. Once the "bond" is broken, things just come apart, relatively easily.

As to expansion rates, and trasfer of heat, I have personally analyzed this, and after careful consideration know to almost a certainty that the temperature differance between the stud and case is almost zero, after a period of only 3 seconds. There is almost NO difference between methods of heating, the case or stud. The Key difference is that the stud changes color, the case does not.
If you heat the stud until it just turns red, and then STOP, you will have a 2 or 3 second safty margin for the case. This may not sound like a lot but it is enouth. Letting them cool for 3 seconds or more guarentees they are at the same or nearly the same temp. At that point the case may acutally be slightly larger, due to the larger coefficient of expansion and the stud just a little smaller. Relatively speaking. In any case the epoxy is gone and if it will come apart, it will.