Removing wheels that have been rusted onto the car.

Dear Car Talk | Sep 01, 1993
Dear Tom and Ray:
Kevin
TOM: I'm not sure what to tell them, Kevin. Have you ever tried getting a tire off a wheel while the wheel is stuck on the car? What are you going to do, cut it off with a chain saw?
RAY: You're right, there is a small amount of danger involved in this procedure, but not much. Most professional mechanics can tell when a tire is heating up too much. And if they can't...well, I guess this is natures way of getting rid of the less competent among us!
TOM: Seriously, if a mechanic wants to play it safe, he can always let the air out of the tire before applying the torch. Then, if the tire starts to reinflate, that's his warning.
RAY: Right. Then he knows it's time to call his assistant over and say "Hey, Billy-Bob, finish up this job for me, will ya?"
Kevin
TOM: I'm not sure what to tell them, Kevin. Have you ever tried getting a tire off a wheel while the wheel is stuck on the car? What are you going to do, cut it off with a chain saw?
RAY: You're right, there is a small amount of danger involved in this procedure, but not much. Most professional mechanics can tell when a tire is heating up too much. And if they can't...well, I guess this is natures way of getting rid of the less competent among us!
TOM: Seriously, if a mechanic wants to play it safe, he can always let the air out of the tire before applying the torch. Then, if the tire starts to reinflate, that's his warning.
RAY: Right. Then he knows it's time to call his assistant over and say "Hey, Billy-Bob, finish up this job for me, will ya?"
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