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Stuck Seatpost(5 posts)

Stuck SeatpostMike Prince
May 5, 2003 2:25 PM

Put my new Time Impacts on my bike yesterday. Realized after a short test ride that the saddle would need to come down a bit. Loosened the clamp, nothing budged. Tried a few things including cleaning around the seattube/seatpost, applying some lube, and trying some more. Finally gave up when I was afraid I was going to break my seat rails.

Frame is 853 steel, about 2 years old. The post (Thomson)was last out about 3 months ago and was greased when it was reinserted.

I was planning on removing the BB and pouring some lube into the seattube from the bottom and letting the bike sit upside down overnight and then trying again. Unfortunately I will not be able to do this till Friday, so I have some time to think about this.

Any other ideas? Thanks.

Try PB Blaster from the top and bottom!nmthe bull
May 5, 2003 3:00 PM
re: Stuck Seatpostdstahl
May 5, 2003 4:11 PM
I have the same problem. What is PB blaster?
here!the bull
May 5, 2003 5:12 PM
Not likely frozen solid in 2 monthsKerry
May 5, 2003 4:20 PM
Your first pass might just be to reef on it a little harder. It's hard to imagine things freezing too hard in just two months. Consider the gentle application of heat from a hair dryer followed by ice wraped in a wet towel. Just the thermal cycling may break things loose. Lube the tube and then turn it upside down may be just the ticket as well. Next steps include ammonia to chew on the aluminum a bit and putting the head of the post in a bench vice while twisting the frame. The final solution is to cut the thing off and then use a hacksaw blade or fine file to notch the remains of the post from the inside. You'll probably never have to go past the first couple of steps.