Stuck Seat Tube
Discussion
Last night after another week of GT85ing I drilled a hole in a 80cm long piece of wood, and clamped this in place of the saddle. I then heated the frame for 5 minutes with a hairdryer pressed against the frame. I was confident. I straddled the bike twisted with all my might and with one swift tug... the wood snapped in two. f
king arse.
I have tied a rag soaked in GT85 around the seat tube/top of frame in an attempt to constantly feed the frame with penetrating oil. Mole grips attached and I'm going to have one more tug tonight, and then take it to the bike shop tomorrow for them to try their best.
king arse.I have tied a rag soaked in GT85 around the seat tube/top of frame in an attempt to constantly feed the frame with penetrating oil. Mole grips attached and I'm going to have one more tug tonight, and then take it to the bike shop tomorrow for them to try their best.
All you`ll ever need to know:
http://forum.ctc.org.uk/viewtopic.php?f=5&t=16...
If you end up on the caustic soda route wear eye protection ....
http://forum.ctc.org.uk/viewtopic.php?f=5&t=16...
If you end up on the caustic soda route wear eye protection ....
Cheers chaps.
This plus gas stuff, can it do any damage to the BB? Just something someone said on that forum above made me think it might be possible? I've never heard of it before.
I'll nip to homebase tomorrow and get my hands on some rather than taking it to a bike shop. Also I'll try freezing the seat post as well as heating the frame.
If there is still no luck I will take it to the lbs next week.
This plus gas stuff, can it do any damage to the BB? Just something someone said on that forum above made me think it might be possible? I've never heard of it before.
I'll nip to homebase tomorrow and get my hands on some rather than taking it to a bike shop. Also I'll try freezing the seat post as well as heating the frame.
If there is still no luck I will take it to the lbs next week.
RCBRG said:
Turn the bike upside down, remove the BB, and fill the seat tube with coke. Used that technique a few times with good results
Well I've ordered this stuff now so I'm going to try plusgas + freezing seattube + heating the frame.If that doesn't work I will have to take the BB out. TBH I need to replace that anyway as it's a little tired, so buying the tools won't be too much of a PITA.
I'm sorry, but a hairdryer will do feck all.
You'll need a blow torch - a DIY one will do, but it will feck the paint over on the frame.
Then you'll need a stilsons wrench (google). They're not expensive. These tighten as you apply more pressure. Once you've twisted it free (broken the cold weld you get with the ally and steel dissimilar metals), it should come out easily.
I have the same problem, a couple of bike shops have basically said that they'll need to heat it, and it will shag the paint. I decided to leave it where it was.
You'll need a blow torch - a DIY one will do, but it will feck the paint over on the frame.
Then you'll need a stilsons wrench (google). They're not expensive. These tighten as you apply more pressure. Once you've twisted it free (broken the cold weld you get with the ally and steel dissimilar metals), it should come out easily.
I have the same problem, a couple of bike shops have basically said that they'll need to heat it, and it will shag the paint. I decided to leave it where it was.
EggsBenedict said:
I'm sorry, but a hairdryer will do feck all.
You'll need a blow torch - a DIY one will do, but it will feck the paint over on the frame.
Then you'll need a stilsons wrench (google). They're not expensive. These tighten as you apply more pressure. Once you've twisted it free (broken the cold weld you get with the ally and steel dissimilar metals), it should come out easily.
I have the same problem, a couple of bike shops have basically said that they'll need to heat it, and it will shag the paint. I decided to leave it where it was.
There are storys of hairdryers/boiling rags doing the job so I'm going to give it a try along with freezing the seat tube.You'll need a blow torch - a DIY one will do, but it will feck the paint over on the frame.
Then you'll need a stilsons wrench (google). They're not expensive. These tighten as you apply more pressure. Once you've twisted it free (broken the cold weld you get with the ally and steel dissimilar metals), it should come out easily.
I have the same problem, a couple of bike shops have basically said that they'll need to heat it, and it will shag the paint. I decided to leave it where it was.
Don't fancy messing the paint up.
Rocksteadyeddie said:
Why do you want it out OP? Sometimes best just leaving it be.
Because it's set as low as it will go as I was riding BMX tracks and dirt jumps for a few months, now I want to hit some trail centre stuff and in the current seat position my knees are by my ears if I sit down. First time I realised this was an issue I did Gizburn (25km) out the saddle. Not fun.UPDATE:
It's still not out.
I doused in plus gas a few times a day for a week, heated the frame and cooled the seat tube and it still wouldn't budge. The next day (yesterday) I took it to "estates" at work (the fix broken stuff at the uni) and borrowed their vice. This just pulled the top part off the seat tube which was heatsealed into the tube it self. Drilled a hole through the top of the post and inserted an allen key for leverage, attached this to the vice and bent a 7mm allen key trying to turn it.
I've dropped it off at a bike shop now who are going to try cutting it out, then blow toching the frame. Obviously this will trash the paint but the paint isn't in perfect nick anyway, and is silver, so I'll just clear coat the melted bit so it doesn't rust and leave it like that.
I did get an email from "theseatpostman" off the back of this thread who makes good claims about getting posts out, but he's 2 hours away in lancs, and charges £50 - totalling nearly close to £100 inc fuel. I'm tight so I took the cheaper option with a possibility of messed up paint.
It's still not out.
I doused in plus gas a few times a day for a week, heated the frame and cooled the seat tube and it still wouldn't budge. The next day (yesterday) I took it to "estates" at work (the fix broken stuff at the uni) and borrowed their vice. This just pulled the top part off the seat tube which was heatsealed into the tube it self. Drilled a hole through the top of the post and inserted an allen key for leverage, attached this to the vice and bent a 7mm allen key trying to turn it.
I've dropped it off at a bike shop now who are going to try cutting it out, then blow toching the frame. Obviously this will trash the paint but the paint isn't in perfect nick anyway, and is silver, so I'll just clear coat the melted bit so it doesn't rust and leave it like that.
I did get an email from "theseatpostman" off the back of this thread who makes good claims about getting posts out, but he's 2 hours away in lancs, and charges £50 - totalling nearly close to £100 inc fuel. I'm tight so I took the cheaper option with a possibility of messed up paint.
Rocksteadyeddie said:
DoubleSix said:
TheBALDpuma said:
I'm going to have one more tug tonight, and then take it to the bike shop tomorrow for them to try their best.
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