I've used that trick when working on cars at a used car dealer many times when trying to get out stubborn bolts or when a bolt broke off and used a vice grip to turn what was left of the bolt out. Mostly on exhaust pieces or other things under the car. Another thing heat from a torch can be used for is for something that is press fit, heating the metal around the part to expand it and if needed spray freon aerosol ( Is this still available ?) on the piece to be pressed in to contract it. Just be sure that nothing will be damaged when heating parts and your not torching near the gas tank or anything. Another thing I've used heat on is the screws in the old ford striker plates. If these have set for any amount of time, it is near impossible to turn out the large phillips head screws, An impact driver may work but I didn't have one so I used heat and a socket screw driver bit.
Last edited by kenseth17; 09-17-2005 at 02:23 AM.