Engineering slogans

[mpking]

Originally posted by gwross

I'm not in auto repair. I would appreciate an explanation. Does this have something to do with "blue" language?

You've got a stuck or rusted bolt and nut.

Take a Torch, and heat it up. Then let it cool.

The expansion of the metals (Nut and bolt) forces the nut to become slightly larger, allowing greater ease in removing the formally stuck bolt, when they cool, because the bolt will contract to it's (almost) orginal size.

This is where experiance comes into play, as I said, I've never done it, so I have not idea whether the bolt is usuable at this point, or if it's just junk.

This is usually used when removing exhaust systems, so all the hardware is easily replaceable.