Removing a stuck seatpost
05-24-12, 03:31 PM
#1
aka Tom Reingold
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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.
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Tom Reingold, tom@noglider.com
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Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog
“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
Last edited by noglider; 05-24-12 at 04:57 PM.
05-24-12, 03:34 PM
#2
incazzare.
Oh? I had a hell of a time getting one out recently. I could have used all the help I could get.
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1964 JRJ (Bob Jackson), 1973 Wes Mason, 1974 Raleigh Gran Sport, 1986 Schwinn High Sierra, 2000ish Colian (Colin Laing), 2011 Dick Chafe, 2013 Velo Orange Pass Hunter
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05-24-12, 04:15 PM
#5
Senior Member
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.
05-24-12, 07:38 PM
#6
Senior Member
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.
Shoved in there too!
05-24-12, 08:51 PM
#7
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marley mission
my voyageur has a stuck post...and thats the way its staying
my voyageur has a stuck post...and thats the way its staying
05-24-12, 09:06 PM
#8
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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.
05-24-12, 09:13 PM
#9
)) <> ((
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.
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.
05-24-12, 09:31 PM
#10
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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.
That, and leverage. Brute force loses to leverage.
05-24-12, 09:48 PM
#11
Senior Member
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.
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.
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.
05-24-12, 11:37 PM
#12
Senior Member
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.
05-25-12, 11:12 AM
#13
incazzare.
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.
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.
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1964 JRJ (Bob Jackson), 1973 Wes Mason, 1974 Raleigh Gran Sport, 1986 Schwinn High Sierra, 2000ish Colian (Colin Laing), 2011 Dick Chafe, 2013 Velo Orange Pass Hunter
1964 JRJ (Bob Jackson), 1973 Wes Mason, 1974 Raleigh Gran Sport, 1986 Schwinn High Sierra, 2000ish Colian (Colin Laing), 2011 Dick Chafe, 2013 Velo Orange Pass Hunter
05-25-12, 11:19 AM
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Cursing...............lots and lots of cursing........preferably in more than one language.
05-25-12, 11:24 AM
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Oh, there are definitely lots of methods that work, each with its costs and benefits. I just want to see the video again. Kurt?!
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Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog
“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog
“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
05-25-12, 11:44 AM
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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.
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.
05-25-12, 11:58 AM
#17
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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.
05-25-12, 12:15 PM
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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.
05-25-12, 12:34 PM
#20
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She love the bike, so yeah, i guess it is good to know that there is a solution if it comes down to it.
05-25-12, 12:41 PM
#21
incazzare.
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.
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1964 JRJ (Bob Jackson), 1973 Wes Mason, 1974 Raleigh Gran Sport, 1986 Schwinn High Sierra, 2000ish Colian (Colin Laing), 2011 Dick Chafe, 2013 Velo Orange Pass Hunter
1964 JRJ (Bob Jackson), 1973 Wes Mason, 1974 Raleigh Gran Sport, 1986 Schwinn High Sierra, 2000ish Colian (Colin Laing), 2011 Dick Chafe, 2013 Velo Orange Pass Hunter
05-25-12, 12:45 PM
#22
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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)
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)
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Life is too short not to ride the best bike you have, as much as you can
(looking for Torpado Super light frame/fork or for Raleigh International frame fork 58cm)
Life is too short not to ride the best bike you have, as much as you can
(looking for Torpado Super light frame/fork or for Raleigh International frame fork 58cm)
03-17-13, 08:42 AM
#23
Senior Member
Ask Bill, he probably has more experience at frozen stems and posts than anyone.
https://www.facebook.com/BillsVintageSteelBikes
https://www.facebook.com/BillsVintageSteelBikes
03-17-13, 08:52 AM
#24
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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
Ed
03-17-13, 09:06 AM
#25
Senior Member
Super idea!
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
Ed