- Drill a hole thru the whole seatpost. - get a metal rod that fits it and is atleast 2 feet wide. - put the rod through the whole seatpost in width. - twist and pull.
take a dead blow hammer (made of hard rubber not metal). then hit the seat tube. not so hard that you dent it, but hard enough to loosen things up between the post and tube. Then (if possible) twist the seat post out using the seat as a lever.
- Drill a hole thru the whole seatpost. - get a metal rod that fits it and is atleast 2 feet wide. - put the rod through the whole seatpost in width. - twist and pull.
Or you could take the seat off and clamp two screw drivers to the post head with the handles facing forward and back.
wont heating the seatpost up make it expand making it more stuck?
Not if you heated up the frame (althought I'm not sure if that would do anything bad to the frame). If he heated up just the frame, then the frame around the seatpost would expand. Someone correct me if I'm wrong.
If you heat up a frame you will f*ck up the welds. Cause most frames these days are heattreated, if you heat it again, the heattreatment was useless because your putting stress back into the tubing and welds. So dont heat up your frame!