Aluminum expands faster than steel when heat is applied. Ideally you want the steel hot, and the aluminum cold.
Typical corrosives (WD-40, pb blaster, liquid wrench, etc.) have little affect on galvanic bonds. It's not what they're made to do.
Theoretically, cleaning grade vinegar(acid) is more likely to weaken the bond.
Discussion of bikebike2025 IRL are floating around Facebook and Discord.
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On Tue, Aug 13, 2024, 1:39 PM Jim Sheehan via TheThinkTank < thethinktank@lists.bikecollectives.org> wrote:
- Aluminum foil (crushed lightly and dipped in water) is the best method
for cleaning chrome: cheaper, faster, less abrasive than steel wool, and recyclable. Just wear gloves, wipe the brown drips off promptly with a thick, clean, cotton rag, and polish lightly with oil.
- Stuck seatposts usually are due to a missing -- or old, ineffective
grease barrier between the steel tube and aluminum post. If you *do not try to loosen it by flooding it with oil products first,* there is a much better chance that the ammonia soaking trick will work, since it will be able to seep into the spaces where oil would have already sealed the less viscous ammonia away from contact. Be sure to fill the post to overflowing, and give it at least a few days to sit.
Looking forward to other contributions here!
Peace, Jim
Jim Sheehan Executive Director Ohio City Bicycle Co-op 1779 Merwin St https://www.google.com/maps/search/1779+Merwin+St+Cleveland,+Ohio+44113?entry=gmail&source=g Cleveland, Ohio 44113 https://www.google.com/maps/search/1779+Merwin+St+Cleveland,+Ohio+44113?entry=gmail&source=g 216 830 2667 OhioCityCycles.org jim@ohiocitycycles.org _______________________________________________ TheThinkTank mailing list -- thethinktank@lists.bikecollectives.org To unsubscribe send an email to thethinktank-leave@lists.bikecollectives.org To view this discussion on the web visit https://lists.bikecollectives.org/hyperkitty/list/thethinktank@lists.bikecol...