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Join Date: Sep 2005
Location: Hervey Bay, Qld, Australia.
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Bikes: Colnago (82, 85, 89, 90, 91, 96, 03), 85 Cinelli, 90 Rossin, 83 Alan, 82 Bianchi, 78 Fountain, 2 x Pinarello, Malvern Star (37), Hillman (70's), 80's Beretto Lo-Pro Track, 80's Kenevans Lo-Pro, Columbus Max (95), DeGrandi (80's) Track.
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I think a soak with ammonia may help to release the bond of the aluminium to the steel. Electrolysis has probably occurred bonding the post into the frame. It's a really difficult situation to rectify. I have spent a year removing a post from a frame - occasionally working on the post to remove it without damaging the frame.