Someone posted here, that if a nut and bolt are stuck, you can hear the nut with a torch, and then drip candle wax into the threads. From a lit candle. As the temp hits the sweet spot, the wax soaks into the thread, and lubricates so the nut comes off easier.
I've not had the time, energy, and thought of this at the same time. Today I've ge got a piece of exhaust pipe from under my van, which has four clamps.
I took the pipe out with a sawzall, actually I guess I've go five clamps. I tried my favorite HF impact wrench, takes a 15 MMM socket, none of the English sockets were quite right.
Spray with castle Thrust, and a couple came loose, a couple rounded off the nuts.
Tonight I tried the heat and wax method. The ones with points on the nut didn't come off any easier with the impact gun, but a couple did some loose with a big pair of channel lock pliers, and some slow rotation.
Test is not conclusive, not sure the wax helped.
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