Problem removing seat post

[gareth h]

A friend has bought a steel framed Marin from a mate who emigrated, we've been trying to adjust the seat height but it is siezed, tried soaking in wd40 and a long bar to no avail, removed the saddle and used a lump hammer to try to knock the post down to free it, no joy. I suspect some kind of electrolytic welding kind of thing has gone on, don't suppose it's been adjusted for 10 years.
Any ideas

[Neil_Bolton]

gareth h said:

A friend has bought a steel framed Marin from a mate who emigrated, we've been trying to adjust the seat height but it is siezed, tried soaking in wd40 and a long bar to no avail, removed the saddle and used a lump hammer to try to knock the post down to free it, no joy. I suspect some kind of electrolytic welding kind of thing has gone on, don't suppose it's been adjusted for 10 years.
Any ideas

Friendly bike shop + seatpost reamer + readies = seatpost removed.

Hope that helps

They have should have specific tools for this.

[Willow1278]

Have you tried taking the wheels out, turning the bike upside down and clamping the seat post hard in a bench vice, then use the frame as a lever to try freeing it that way.

I think you can try heating the post or the frame too, although I'm not 100% sure which way round you would need to do it, depends which metal expands the most I guess!

If all else fails you may have to try cutting the post off and cutting it in to pieces from the inside, not a quick job!