Just spent hour n half getting the post from a cheap lava dome i picked up (cheap cause of the known stuck seat post)
1/ soak in WD40 / plus gas for a couple of days ... not budging.
2/ take to brothers place to try slide hammer.
3/ slide hammer bolted to Seatpost clamp with chain and post liberally doused in penetrating fluid the typle, i cant remember the name but he said it was a good one. tried like this for quite a while..minimal effect.
4/ keep the penetrating spray flowing ...
5/ huge set of Stilson's on the post and eventually, we got it to move from side to side
6/ brother applied sideways pressure with the stiltsons whilst I twatted the seat clamp at the top of the post with a huge copper faced hammer...hit upwards while brother twisted with stiltsons. at last we started to see movement ...about 10 mm in 10 minutes..then the inevitable happened.. the seat clamp pinged off.. to be fair it had taken (literally) a fair bit of hammer
7/ brother said he had some freeze spray but hadn't had much success with it saying its about as cold as water from a tap ... to demonstrate this he sprayed some on his hand ... not exactly liquid nitrogen cold then :roll:
8/ we doused the frame and post in this stuff and clamped the seat post in a vice ... two minutes later it was out :shock:
not entirely sure what moved the post, prov=bably a combination of all above... i know one thing for sure, id never knowingly buy a frame with a stuck post again :|