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Pro tip: I used a heat gun on a stuck seatpost and it came out way too easy
Had a steel frame with an aluminum post that was totally frozen. I've always been told to use a torch, but I grabbed my heat gun instead, set it on high, and went around the seat tube for about five minutes. The post slid out with almost no force, but then I saw the inside of the tube had a weird, almost chalky residue. I think the heat might have dried out the old grease and corrosion in a way I didn't expect. Has anyone else had a seatpost come out 'too' clean after using indirect heat like that?
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allen.amy4d ago
Heat guns are a safer choice than a torch, but that chalky residue is a real worry. It sounds like you baked the old grease into a powder and maybe overheated the tube. Aluminum can transfer heat fast and weaken the bond in a weird way. I've seen that chalky stuff before and it often means the surface inside the tube got damaged. Next time, a proper penetrating oil over a longer time works better for me.
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holly_foster4d ago
My buddy's garage still smells like burnt plastic.
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