We’ve used gripping, clamping tools, heat as shown in video. We have already took that hope clamp off as well and nothing changed, this thing will not budge at all! Any tips to get it off?
by bababooeyfrothy
We’ve used gripping, clamping tools, heat as shown in video. We have already took that hope clamp off as well and nothing changed, this thing will not budge at all! Any tips to get it off?
by bababooeyfrothy
8 Comments
whatever oxidation that is holding is holding tight. can it go in at all? or can you rotate? you have to break that it loose first.
try a bit of heat on the seat tube, trying to not have any on the seatpost, then put a penetrating lube. then try rotating the steatpost
Get a big wrench, the biggest you can, or a metal pipe to use as a extension of the handle. cut the seatpost at the middle, then hit with a hammer the seatpost until you make a square surface, put the big wrench and Move it frome side to side with all the torque. Be patient to do not broke the seatpost or the frame or damage the wrench. Good luck
Can you flip the bike, stick the seatpost in a vice or something, and use the bike for leverage to twist it?
Have you tried any type of lubrication?
How about taking the seat off and then somehow putting a dent puller on it. Have someone hold the bike down on its side and get the puller working. Maybe some body shop will let you borrow on on site. Just offer a few bucks..
If it’s oxidized in there, penetrating oil is a non-destructive solution. If it’s an aluminum frame, it could also be chemically welded, which is the worst case. I see oxidation, though, so certainly try the penetrating oil route. If there’s serious oxidation, maybe a dilute acid, but that’s a dangerous route to go down.
If you don’t already have one, a cheap USB endoscope is really valuable in diagnosing stuff like this. They’re $30 or so on eBay. Remove the BB, run the endoscope up into the seat tube, and see what you can see. Obviously not ideal, but if you get to the “so stuck it needs a dremel” point, it’s a very wise idea.
Depending on the level of stuckness, removing the BB, inverting the bike, and running penetrating oil down the seat tube may be warranted as well. Leave overnight, then try regular saddle twisting in the morning.
I once had one that was so stuck, i poured a coke down the seat tube while it was upside down in the stand and left it for the weekend.
On Monday, I drained it, clamped the seatpost top in the bench vice and 2 of us turned the frame.
Fun with steel/aluminum galvanic corrosion
The wrong seat-post clamp was forced onto the seat-post tube. Remove it first, of the seat-post tube and onto the seat-post and take it from there.