Siezed seatpost!!! :S

[duvain]

Well I have an old Marin that has had the post in the same postion since at least the mid 90's...
Is there any easy solutions to freeing it up or will it be a bottom bracket out kinda job??
Any ideas welcomed???

Cheers. ;D

[Oggy]

Plenty of WD40 or Plus Gas and a massive stilson wrench gripped on to the clamp part of the post while someone else holds the bike

[christian]

Plenty of relesing fluid or wd40 and stilsons on the post, should come out but post will probably be wrecked after it.

EDIT: Err, beat me to it mate ;D

[Oggy]

Aug 17, 2010 8:39:10 GMT christian said:

EDIT: Err, beat me to it mate ;D

#

Great minds all that ;D

[duvain]

Thanks guys, I did actually kinda try that but, thought somethin was gonna snap so didnt want to push it too much!!
I had visions of the frame cracking!!

So you think this is my best shot?

[thistle]

If you've got a bench with a vice you can put the bike in upside down, clamp the saddle and use the bike as leverage.
WD40 etc. would still be a help but once it starts moving it should start coming out.

[Dan B]

I've had it recently with my old Burner seatpost been in since 1984 in the same position, the best and easiest way but will destroy the seatpost is the following.

As Oggy states lots of WD40 soak at least 24 Hrs, find a large bolt say 10 or 15 MM drill a hole through the seatpost just above the top of the seat tube large enough for the bolt. Put bolt though and tighten to hold in place, lay frame on the floor and use a strong hollow bar (or another old seatpost!) to leaver the post loose.

It did the job for me without damaging the frame but did give a loud crack as it freed itself thought I'd killed it but all is good

[duvain]

ha,ha, I must have got my bike to breaking point but jibbed out thinkin it was goona kill the frame...
I'll try that method an see if I manage to free it up without too much distress!! haha,
thanks for the tips guys!

[tom123]

Also try some boiling water on frame tube,it worked a bit when loosening a sized frame bolt, if using a kettle, wipe off all grease marks before returning it to kichen ;D

[Deleted]

Aug 21, 2010 8:43:13 GMT @tom123 said:

Also try some boiling water on frame tube,it worked a bit when loosening a sized frame bolt, if using a kettle, wipe off all grease marks before returning it to kichen ;D

If you're going to do this, the best way is to wrap a towel round the frame where the seatpost is seated and then pour the kettle of boiling water on the towel, this will retain the heat rather than just pouring it onto the frame itself. This could be useful in cracking the seal between the seatpost and frame as the frame will expand slightly.

[duvain]

Oooh, thats a new one!! I havent had chance to try these methods out but will have a go at it this week,
will let ya know which one works best!
Sweeeeeeeeeet!

[thistle]

Heat definitely works for freeing up some things a blow torch on cranks jammed on a square taper bottom bracket used to work.

That worked because there was a steel BB pin inside an aluminium crank, and the aluminium expands faster than the steel so it comes a bit loose.

I guess it's an aluminium post in an aluminium frame and not a steel frame? If it's a steel frame then maybe getting friendly with someone at the Iceland warehouse would be the way to go ;D