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The time I used a heat gun on a seized seatpost and it actually worked
A customer brought in a steel frame with an aluminum seatpost that was totally stuck. I tried the usual tricks, like penetrating oil and a bench vise, for over an hour with no luck. As a last try, I carefully used a heat gun on the seat tube for about 90 seconds, focusing on the area just below the clamp. I heard a small pop, and the post twisted free with a normal wrench. I learned that a little controlled heat can break the corrosion bond without hurting the frame's paint if you're careful. Has anyone else had success with this method on different frame materials?
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the_ben1mo ago
That pop sound is the corrosion bond breaking.
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ivan8401mo ago
Yeah, that pop is so satisfying. I had an old truck where the lug nuts were basically welded on with rust. First time I broke one free, the sound was like a gunshot. Felt like I won a small battle.
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