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PostPosted: Thu Sep 03, 2009 5:54 pm 
retrobike rider
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dont leave it in there , thats just shoddy . the powder coater will blast the frame as a matter of course and itl trap the blast media used

http://cgi.ebay.co.uk/10-STAINLESS-STEE ... 286.c0.m14


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PostPosted: Thu Sep 03, 2009 6:04 pm 
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perry wrote:
dont leave it in there , thats just shoddy . the powder coater will blast the frame as a matter of course and itl trap the blast media used

http://cgi.ebay.co.uk/10-STAINLESS-STEE ... 286.c0.m14


I know it's shoddy but I doubt the forceps will work.. it's too jammed in.. are 10" needle nose pliers available? :lol:


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PostPosted: Thu Sep 03, 2009 8:16 pm 
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yep:-

http://www.halfords.com/webapp/wcs/stor ... yId_165469


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PostPosted: Thu Sep 03, 2009 8:39 pm 
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Since the frame is going to be media blasted and repainted anyway why not use caustic soda?


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PostPosted: Thu Sep 03, 2009 8:42 pm 
Gold Trader / MacRetro rider
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good idea Andy :D
It might at least remove enough metal to clear the narrow section of the tube

If you are going to leave it in then id secure the post first then clean and paint


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PostPosted: Thu Sep 03, 2009 9:03 pm 
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dyna-ti wrote:
good idea Andy :D
It might at least remove enough metal to clear the narrow section of the tube


which might allow it to drop out

:?:


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PostPosted: Thu Sep 03, 2009 11:33 pm 
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Location: West Sussex.
From this website:
http://www.sheldonbrown.com/stuck-seatposts.html


Quote:
"Aluminum seatposts frequently become stuck by corrosion also, and penetrating oil is almost useless against aluminum oxide. Fortunately, aluminum oxide can be dissolved like magic by using ammonia."


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PostPosted: Thu Sep 03, 2009 11:42 pm 
Gold Trader / MacRetro rider
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Good ol' Mr Brown 8)


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PostPosted: Fri Sep 04, 2009 9:50 am 
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Hail Sheldon once again!
will that work better than Sodium Hydroxide?


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PostPosted: Fri Sep 04, 2009 11:05 am 
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Dead Rats wrote:
Hail Sheldon once again!
will that work better than Sodium Hydroxide?


Ammonia will only dissolve the aluminium oxide - it probably won't help in your case though, as you want to actually dissolve the aluminium. It's not as if you have an intact seatpost that is just seized because of an oxide build-up.

Sodium hydroxide will do that, but work outside and wear safety glasses and good rubber gloves.


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