Removing Stuck Seat Post, No Heat Required

 
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Carl Davey
Super Tuff Burner


Joined: 09 Sep 2008
Posts: 503
Location: Aberdeenshire

PostPosted: Sun Oct 18, 2009 1:47 pm    Post subject: Removing Stuck Seat Post, No Heat Required Reply with quote

I recently bought a frame and forks on here with a seat post well and truly stuck in place. Only the first 1.5" of seat post was showing proud of the frame, just enough to get a seat clamp onto.

It was obvious that someone had already tried to remove the post with the aid of a vice as the protruding part of the post was fairly chewed. Not disheartened i chewed it some more in my vice just to make sure.... yup, definitely not coming out that way. Laughing

So i went round to the parents this morning with the intention of using Dads oxy-acetylene gear to heat the frame/post up and retrieve it that way. However, before i did anything i spoke to Dad who suggested trying an alternative method first.



1. Using a punch mark a point to be drilled on one side of the post. Make sure you're well clear of the frame, i chose to mark about 10mm up from the frame.

2. Drill a small pilot hole through the punch mark, circa 3-4mm dia.

3. Do the same on the opposite side in roughly the same position. Make sure you get a nice deep punch mark else the drill will slip off.

4. Find a something nice and strong that will be suitable for sticking through the post, i used an old bolt and nut from my cars exhaust.

5. Measure the diameter of the part and drill through the pilot holes in the post with an appropriately-sized drill-bit. Don't go too mad, be sure to leave plent of 'meat' in the post. The bolt i used was 10mm diameter and i wouldn't be too keen to drill a hole any larger than that.

6. Stick the item, in my case a nut/bolt, through the seat post.

7. Jar the seat post and nut/bolt assembly in the vice. In my case this saw the frame end up upsides-down in the vice.

8. Gently rotate the frame radially to the orientation of the seat post. So in my case, with the frame upsides-down in the vice, i was twisting it left to right.

9. The seat post should free itself off and by pushing upwards on the frame and twisting some more it should come out altogether. Cool

10. Here's what you'll be left with.



Ok, so the seat post is scrap but at least the frame has been saved and is now ready to go for powdercoat to be restored to its former glory. Cool
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oldboyburner
Aero Pro Burner


Joined: 14 Jun 2007
Posts: 4864
Location: my attic

PostPosted: Sun Oct 18, 2009 2:59 pm    Post subject: Reply with quote

Cool will try and remember that one
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Demo 4
smokes dick for cash


Joined: 01 Sep 2008
Posts: 7841
Location: mi luuve u loong time

PostPosted: Mon Oct 19, 2009 12:23 pm    Post subject: Reply with quote

top tip
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Gernster
Ultra Burner


Joined: 13 Oct 2008
Posts: 1095
Location: Hudds West Yorks & Sheffield

PostPosted: Mon Oct 19, 2009 12:25 pm    Post subject: Reply with quote

yep, thats how I do it!
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