Aluminium Seatpost stuck in Carbon Frame

minley1

Hi,

I know there are various posts on this, I have a KCNC Scandinium Seatpost, it's been in the frame since January 2013, and was installed with some carbon paste.
It is stuck fast, with the seat clamp totaly released there is no movement whatsoever, I have tried pouring coke into the frame, but the BB shell is sealed, so I had to pour it through the bottle cage hole, no joy so far, any tips?

The Rookie

Ammonia (household cleaner style), dissolves aluminium oxide (see Sheldon Brown) worked on my sons carbon frame with seized ally seatpost.

We wrapped kitchen roll around the joint, then duct tape around that to make a 'funnel' and then kept topping it up, doing it from below it's likely you are just filling up the inside of the seatpost with nothing getting to the joint.

minley1

Do you mean Kitche Foil rather than Roll?

nicklouse

read the info on Sheldons pages.

and it might be a case of pushing the frame rather than pulling the seat post.

read the info on sheldons ways to remove stuck seat posts.

lpretro1

This guy does a fantastic job: www.theseatpostman.com/

The Rookie

minley1 wrote:

Do you mean Kitchen Foil rather than Roll?

No, Kitchen roll, paper absorbent stuff, it acts as a filler so the tape makes a funnel shape and also stops the ammonia spilling out to easily if you do something silly!