Stuck seatpost

[Imlach]

Hi,

Bought a kona explosif frame with a stuck seatpost as I wanted a challenge. I now need some input.

I started out by using brute force, hammering it with a mallet while channeling my inner neanderthal. Seatpost wasn't budging. I proceeded to use a vice grip and attempted to get any kind of rotation, no luck. I then used the vice grips again, this time hammering on the grips with the intention of getting the seatpost to come out. Nothing. While I was doing this I was using Loctite Freeze and Release, I used an entire can so that was a waste of a tenner. I have been reading on the forum so I figured it's about time I cut this post and attempt using LGF's method with a quill stem and handlebars. I ran out and found a rusty quill stem and I was ready for battle. I cut the seatpost only to realise that it has some wierd pattern inside it (look at picture) so I can't get a quill stem into it. Now my only options seems to be drilling and a hole in the post. Any ideas?

 

[Acidohm]

Re:

Hidden CND symbol!

 

[Imlach]

Peace is the last thing on my mind, couldn't have thought of a more annoying symbol to find when attempting to remove a stuck seatpost.

 

[BoyBurning]

Re:

Hate to tell you, but that's a pretty rare seat post you've cut up.

Almost certainly worth more than the frame.

 

[Imlach]

Not sure if hack sawing it is even possible due to the construction, will have to test it tomorrow.

BoyBurning, I'd rather have a useable frame than a scratched up seatpost.

 

[marc two tone]

Re:

Freeze it out. Please don't set fire to it or use narsty chemicals.

viewtopic.php?f=1&t=226766

In your case you have the opportunity. I realise you have done this already
But worth another go. Did you have it in a vice upside down, rotate frame
5-10 mins after applying the stuff, locally? I used a car sponge opened
Like a pita bread and tie wrapped locally to tubing, holds the chemical
To affected area.

 

[Imlach]

Already used an entire can of freeze n release, applied through bottom bracket and around seat collar. While applying, I was hammering and attempting to twist it in a vice - no luck.

 

[Remko]

Re:

You could try to mount a quill stem with the handlebar clamp on the seatpost, depending a bit on the seatpost size. Then mount a long tube (2 meter for example) on the quill, put the frame against the wall or on the floor and start moving the tube. Quite the same as using a vice but with more momentum.

 

[itscervo]

Already used an entire can of freeze n release, applied through bottom bracket and around seat collar. While applying, I was hammering and attempting to twist it in a vice - no luck.

This is the wrong way to do it.

You need to wrap the seat tube with thermal jacket then apply the spray between it & the seat tube. https://www.screwfix.com/p/rothenberger ... 10mm/36720

 

[tpjm191]

maybe drill through now knackered seat post and attach a slide hammer?

viewtopic.php?f=1&t=329177&start=40&hilit=slide