stuck seatpost... please help

slartibartfast wrote:
I'm posting this for a freind of mine, heres what he wrote to me:

"Hey, any tricks on getting a fused aluminum seatpost out of a steel frame?
I heard that coke works? Also ammonia? I tried a hydraulic jack, but I
almost bent a chainstay..."

http://www.sheldonbrown.com/stuck-seatposts.html

Tell him good luck.

I personally got two steel frames with stuck seatposts, not having
wanted to start some real possible destructive measures I just live with
it and enjoy the weight saving benefit in not having to have a seatpost
bolt:-)

Kind regards

Bruno

slartibartfast wrote:

I'm posting this for a freind of mine, heres what he wrote to me:

"Hey, any tricks on getting a fused aluminum seatpost out of a steel frame?
I heard that coke works? Also ammonia? I tried a hydraulic jack, but I
almost bent a chainstay..."

Thanks for any help

Jason

Version 10.3
You must have access to a very large bench vise/vice/vyce.
Take off saddle.
Get some WD40 or penetrating stuff of your choice into the area inside the
seatpost tube.
Either squirt through the WB bosses or take off the BB.
This is not to loosen right now, but to be there when it cracks.
Allow to run down into the inside end of the seatpost
Leave half a day with the bike alternately upside down and laying on side..
Take off the wheels.
Invert bike and lock the seat post in the vise jaws.
Grab bike at either end of the frame and twist.
This works in 90% of cases due to the large leverage being used.
Smile when you hear that initial click and feel it twist 1 degree.
GREASE SEATPOST before reinserting