Freeing up a seat post

twowheelthrill
twowheelthrill Posts: 59
edited June 2015 in MTB workshop & tech
Hi.

Managed to seize the seat post in my frame by not using a shim.

It's a steel frame (Surly), and you can see in the pic that the top half of the split is narrower, here: http://i260.photobucket.com/albums/ii10/vt24/DSCF0246.jpg~original. Any suggestions in opening it up with the least damage? I've spoken to a few frame builders, and they mentioned that a new seat tube isn't necessary.

Comments

  • cooldad
    cooldad Posts: 32,599
    Stick the seatpost in a vice and twist the bike.
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  • The Rookie
    The Rookie Posts: 27,812
    Ammonia cleaner to dissolve the aluminium oxide which is probably the culprit.
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.
  • stubs
    stubs Posts: 5,001
    The Seatpostman does a good job but is a fair distance from Thetford

    http://www.theseatpostman.com/
    Fig rolls: proof that god loves cyclists and that she wants us to do another lap
  • dgunthor
    dgunthor Posts: 644
    could turn it upside down and add coca cola though the bottom bracket - let it soak, then try the vice trick
  • twowheelthrill
    twowheelthrill Posts: 59
    Thanks for the replies!

    I'll try the vice first, and hopefully get it free. The main issue is opening up the gap in the split (see pic).

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