|
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
frozen seat post....need recs on how to free
Frame is steel.
Seat post is aluminum. Welded together from oxidation and rust. LBS tried w pipe wrench, vice, and lubricants...all to no avail. Bike is mid 80's vintage road bike....Suntour, lugged steel, etc. Still looks and rides great, so I'd really like to salvage it. Don't care if I damage the seat post. Would prefer to keep frame damage to a minimum. How do I free it? Blowtorch? Who is best able/equipped to do it? bike shop? frame builder? machine shop? I'm in NYC and am all ears to any specific advise on who to bring it to. Thanks for the help. |
Ads |
#2
|
|||
|
|||
frozen seat post....need recs on how to free
John Spellman wrote:
Frame is steel. Seat post is aluminum. Welded together from oxidation and rust. LBS tried w pipe wrench, vice, and lubricants...all to no avail. Bike is mid 80's vintage road bike....Suntour, lugged steel, etc. Still looks and rides great, so I'd really like to salvage it. Don't care if I damage the seat post. Would prefer to keep frame damage to a minimum. How do I free it? See: http://sheldonbrown.com/stuck-seatposts.html Sheldon "Unggggghhh!" Brown +-------------------------------------------------------------+ | If brute force doesn't work, you're not using enough! | | --BOB Simon | +-------------------------------------------------------------+ Harris Cyclery, West Newton, Massachusetts Phone 617-244-9772 FAX 617-244-1041 http://harriscyclery.com Hard-to-find parts shipped Worldwide http://captainbike.com http://sheldonbrown.com |
#3
|
|||
|
|||
frozen seat post....need recs on how to free
"John Spellman" wrote in message om... Frame is steel. Seat post is aluminum. Welded together from oxidation and rust. LBS tried w pipe wrench, vice, and lubricants...all to no avail. Bike is mid 80's vintage road bike....Suntour, lugged steel, etc. Still looks and rides great, so I'd really like to salvage it. Don't care if I damage the seat post. Would prefer to keep frame damage to a minimum. How do I free it? Blowtorch? Who is best able/equipped to do it? bike shop? frame builder? machine shop? The Mad Monk probably has a solution (and avoidances) for you. http://www.sheldonbrown.com/stuck-seatposts.html Pete |
#4
|
|||
|
|||
frozen seat post....need recs on how to free
In article ,
Sheldon Brown writes: Sheldon "Unggggghhh!" Brown +-------------------------------------------------------------+ | If brute force doesn't work, you're not using enough! | | --BOB Simon | I dunno, mebbe you've already heard it, but a good tune to listen to sometimes, is "Brute Force & Ignorance", by Rory Gallagher. In the old days, when there were vinyl albums, it was on his "Photo Finish" vinyl album. There's some pretty good mandolin'ing in there, and other nicely & sensibly-expressed seatpost-pulling provocations & incentives. It's just an inspiring tune. Good ol' Rory Gallagher. I dunno why, but his tunes are so cyclistic. I think so, anyways. cheers, & Unggggghhhh! Tom -- -- Powered by FreeBSD Above address is just a spam midden. I'm really at: tkeats [curlicue] vcn [point] bc [point] ca |
#5
|
|||
|
|||
frozen seat post....need recs on how to free
"John Spellman" ha scritto nel messaggio
om... Frame is steel. Seat post is aluminum. Welded together from oxidation and rust. I tried every Sheldon Brown advice, no one worked. The only device that worked was a drill. Use a 26mm cutter: it has to be wider than the inner diameter of the seatpost but narrower than the inner diameter of the seat tube. Cut your seapost then introduce the cutter in it. It would be better to be in a workshop and have the adequate "background" to perfectly align the drill and the frame. If you are careful enough, the frame won't be damaged and you'll extract the drill with the rest of the seatpost lovely coped with the cutter. Not easy at all, to be honest. Ciao Maurizio, Bologna, Italy |
#6
|
|||
|
|||
frozen seat post....need recs on how to free
In article ,
"Maurizio" writes: Not easy at all, to be honest. Wouldn't it be a bitch if holding the bike up by the seatpost with one hand, and giving the top of the seat tube a well-placed, sharp-but-not-destructive rap with a big, ol' rolled-leather mallet with the other hand, accomplished the same goal? Vibrations in metal can work in inscrutably wonderful ways, when given a fair chance to do their stuff. How often do things really need to be reamed-out? cheers, Tom -- -- Powered by FreeBSD Above address is just a spam midden. I'm really at: tkeats [curlicue] vcn [point] bc [point] ca |
#7
|
|||
|
|||
frozen seat post....need recs on how to free
|
#9
|
|||
|
|||
frozen seat post....need recs on how to free
John Spellman scribed in
: Frame is steel. Seat post is aluminum. How do I free it? Blowtorch? Nooooooooo aluminum expands faster than steel, so heat will just make it stick tighter. Some liquid nitrogen or even solid carbon dioxide will cool it enough to break the bond as the ali shrinks more than the steel. don't hit it when frozen, it will crack swarf, steam and wind -- David Forsyth -:- the email address is real /"\ http://terrapin.ru.ac.za/~iwdf/welcome.html \ / ASCII Ribbon campaign against HTML E-Mail - - - - - - - X If you receive email saying "Send this to everyone you know," / \ PLEASE pretend you don't know me. |
#10
|
|||
|
|||
frozen seat post....need recs on how to free
In article ,
Zoot Katz writes: Thu, 30 Oct 2003 00:29:58 -0800, , (Tom Keats) wrote: How often do things really need to be reamed-out? I think that depends on how they often drive. Having to *drive* a seatpost /in/ sounds like sumpthin's wrong from the get-go. But the big 'ol rawhide mallet sounds like a good idea anyway. It's one of my favourite tools. A 3-pounder, with good heft & balance. Not one of those dinky, uneffective little tap-tap-tap units. The head on it is like half a Prest-O-Log. It can be more of a maul than a mallet. But it's not for Brute Force & Ignorance. It's not a sledge hammer. I think what the original poster really needs is a good bench vice, and maybe a coupla injected squirts of Liquid Wrench left overnight. It might kill the seatpost, but they're cheap and replacable anyways. cheers, Tom -- -- Powered by FreeBSD Above address is just a spam midden. I'm really at: tkeats [curlicue] vcn [point] bc [point] ca |
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Fat guys bike and bike seat. | Walter | General | 95 | November 15th 03 05:46 AM |
suspension seat post opinions | bb | General | 4 | October 21st 03 03:16 PM |
protecting saddle + post from theft? | Sanjay Punjab | General | 13 | August 8th 03 02:27 PM |