Have you tried CRC Freeze-Off? Last winter I fought and fought with a frozen seatpost. I tried it call. Ice, propane torch, various penetrants. The *one* thing that worked was CRC Freeze-Off. I sprayed that all around and put the seat clamp between two concrete slabs. Twist. And BAM, it released.
Originally Posted by
oddjob2
Above my avatar it says
Still Learning, so here is my vent for the day.
Last year I picked up two bikes with known seat post issues. One was removed by cutting it out with a sawzall. The other, a Santana tandem stoker's seat post is still a work in progress. It will get the Kroil test soon.
During the last week in December I picked up three weathered bikes, a 1985 PH501, 1983 Trek 560, and a mid 1990's Trek MT 720. All three were field tested for moveable quills and seat posts. Nice no problems!
The following morning I had an early appointment to buy a 1982 PKN-10. It was weathered as well, the paint was good, and the chain was stiff. I didn't bother to check the quill or seat post because it was chilly out
So which bike do I attack this morning only to find that the seat post is frozen? Oy oh Oy!