Removing a stuck seatpost -- where is Kurt's video?
 

I know we've discussed this many times already, but what ever happened to that video that Kurt posted a year or two ago? I really liked it.

Oh? I had a hell of a time getting one out recently. I could have used all the help I could get.

I had a frame w a stuck post, gave it to someone on here that likes a project

my voyageur has a stuck post...and thats the way its staying:)

i worked on a bike the other day for a gentleman, he asked if i could raise his seat. i could not budge the seat post. i finally managed to take the seat off to realize that someone hammered a water pipe in the frame to use as a seat post. finally got it out an hour later with a big pipe wrench and lots of lube.

I had the stuck,stuck seatpost recently with my Schwinn project.Put a junk seat on and gave it the twist treatment, nothing. Did the WD-40 down the post and seat tube, nothing. Tried the upside down pour oil through the seat tube by the BB hole, nothing. Got the can of freeze off and went at it from top and through the BB access hole. Clamped the post in a vice and slowely worked it out. Frame saved and post ....history. Alloy and steel, gotta love it.http://bikeforums.net/attachment.php...hmentid=252254Shoved in there too!

Was that your's on the CL a few weeks back...stuck stem and post?

I've dealt with five or six of them over the last few years and only one resisted every trick I knew; it got sent to a frame shop where they melted it out and honed the seat tube clean. Patience, lots of marinating and the willingness to try anything will win most of the time.

i hate these threads.

removing a stuck seatpost is simple and easy, but it takes time. this works every time.

cut the top off then cut long slits in the post down the tube. use a pliers to curl it and pull it out. if one slit doesn't do it, keep at it until you get it all out.

No need to beat a dead horse, but chemicals of some sort work over time. Time is the operative factor.


That, and leverage. Brute force loses to leverage.

Your solution is #12 of Sheldon Brown's list of removing stuck seatposts. http://sheldonbrown.com/stuck-seatposts.html

I can speak from experience that it isn't simple and easy. I tried it on a stuck seatpost on my 1973 Gitane frame. I tried 1 slit and it didn't work, 2 it didn't work, stopped at 8 slits and it didn't work. Finally the seatpost moved when I had 8 slits. As I pulled with my vice-grip pliers it peeled a section of the seatpost along with the seat tube. Frame destroyed.

A friend of mine was unfamiliar with the slits down the post. Chemicals were not getting it out so he took out the torch. The aluminum post shrunk just enough for him to take it out but about an inch of it had broken off and stayed in the seat tube about 8 inches down. Solution for that? Melt it. The frame was from a co-op and someone had forcefully used a larger seatpost. Poor Trek 870.

Uh. That's a method of last resort. I'd try about 10 things before that.

Cursing...............lots and lots of cursing........preferably in more than one language.

Oh, there are definitely lots of methods that work, each with its costs and benefits. I just want to see the video again. Kurt?!

If you happen to have a short post this work's... but if you happen to have an extra long post in there, it would be a major pain.

My wife's bike has a stuck seatpost, the problem is that the seatpost is is very thin walled. When I try to place some pliers or vice grips on it to give it a turn/pull after letting a releasing agent soak in the walls just want to crimp. I am scared to keep trying, crimping the post until it is ruined, then still not being able to get it out. The seat height is pretty good for her, but I would still like to get the post out and replace it with a more modern post.

yup - its probably overpriced - but then again...i have mixed feelings on selling it :)

Know any good machinist? pricey yes, but if you like the bike they can drill it out for you...at a cost of course. ;)

She love the bike, so yeah, i guess it is good to know that there is a solution if it comes down to it.

Try Freeze-Off. This worked for me, after a soak in ammonia.

I am in the process with a 83 Torpado with a stuck seat post. and will do a full report out

so far I have done the ammonia soak (that 10% stuff is strong) for the aluminum steel corrosion.... no luck

Currently soaking in 50/50 acetone/ATF will see this weekend.

freeze off sound like it as potential

not the cut the seat post will be difficult....the post is prett far down so I don't have apost to cut.....but the top of an old Camply seatpost (if it is original)

Ask Bill, he probably has more experience at frozen stems and posts than anyone.

http://www.facebook.com/BillsVintageSteelBikes

I have been a bike flipper for a long time and when the post is stuck and it is the thinner type that will crush I cut off just the top and insert a metal pipe and them mount it in a vice and twist the frame and they come out every time. The pipe inside the seatpost keeps it from crushing.
Ed

Super idea!