Technical & Reference Section > Tech and Restoration

Seat post removal?

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cd:
Thanks to all for the ideas. The seatpost is alloy so the rust bond won't be so strong as steel / steel. I very much like the idea of dilling a hole in the old post, good idea to get that bit of extra leverage. I'll try:

0) Diesel
1) some gentle whacking
2) the hole
3) dipping in oxalic acid
4) some more whacking

The frame I'm restoring has been pretty abused with everything over tightened. The head set was tightened so much that the bearing cases were crushed and had fallen apart! I had to soak the frame in oxalic for 5 days and then still have two people hold down the frame while I had to use a breaker bar extesion to undo the lock nut which over years of abuse was not so much heaxgonal but round.  :knuppel2: The seat post is the very last attachment!

boofy44:
we use these things at work called easyouts which come in different sizes.they are slightly tapered with a reverse broad thread which bites into the metal and a square top section for applying a spanner to.b+q etc should provide them.

Moose:
Depending on much post you have to play with, you could turn it upside down and put the post in a vice, then twist the frame, using it for leverage to break the corrosion.

theRuler:

--- Quote from: weston on September 13, 2006, 10:26 PM ---try crush the seatpost in a vice & break out of the frame

--- End quote ---

just do this
dont bother pissing around drilling holes and soaking it in diesel

David:

--- Quote from: theRuler on September 14, 2006, 12:40 PM ---
--- Quote from: weston on September 13, 2006, 10:26 PM ---try crush the seatpost in a vice & break out of the frame

--- End quote ---

just do this
dont bother pissing around drilling holes and soaking it in diesel

--- End quote ---


If it's alloy and it's in there solid, it'll proberbly snap before it lets go.

You know what it's like with steel BMX frames....they tend to bend before they snap. Where as alloy BMX frames just plain snap!

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