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PostPosted: Thu Oct 24, 2013 3:46 pm 
Dirt Disciple

Joined: Wed Feb 10, 2010 5:28 pm
Posts: 33
Location: Suffolk UK
Hi all!

Rain had crept into seat tube to form rust. However the black-coated post 27.0 was fine until I put it into a vice to remove it. That's how seized it was!

The replacement post is 27.2

Any tips please about treating the inside of the seat tube especially if it means that the replacement post fits, so much the better.

Of course I shall apply liberal coats of copper grease to prevent seizing in the future.

Thanks in anticipation
CHoD


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PostPosted: Thu Oct 24, 2013 4:07 pm 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
Posts: 8204
Location: New Forest, UK
Firstly, clean the inside of the tube. I hang the frame upside down, leave to dry out then use fine sandpaper mounted on a stick to clean the sides. Brush clean afterwards.

IF your 27.2 seatpost fits when dry and doesn't rattle, then use it. If it doesn't, then buy the right size (27.0). There is no point in reaming bigger, you will simply weaken the seat tube. Reaming is only designed to take out small amounts of ovalisation.


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PostPosted: Thu Oct 24, 2013 6:11 pm 
Retro Guru

Joined: Sat Jun 26, 2010 11:07 pm
Posts: 1898
Location: brighton
Keeping it in the family I see ;-)


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PostPosted: Thu Oct 24, 2013 6:40 pm 
Dirt Disciple

Joined: Wed Feb 10, 2010 5:28 pm
Posts: 33
Location: Suffolk UK
jaypee wrote:
Keeping it in the family I see ;-)


You've completely lost me there.

I'm inclined towards reaming because it will quickly solve the rust problem.


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PostPosted: Thu Oct 24, 2013 6:53 pm 
Retro Guru

Joined: Sat Jun 26, 2010 11:07 pm
Posts: 1898
Location: brighton
The clue is in the name.......


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PostPosted: Thu Oct 24, 2013 7:09 pm 
Retro Guru

Joined: Wed Mar 07, 2012 12:41 am
Posts: 816
jaypee wrote:
Keeping it in the family I see ;-)


I must admit, that You got me, for a while. :lol:
To top fun, I need to change mine username to last three letters of Yours! :lol:

http://www.retrobike.co.uk/gallery2/v/u ... t.png.html


Last edited by rider on Thu Oct 24, 2013 7:44 pm, edited 2 times in total.

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PostPosted: Thu Oct 24, 2013 7:11 pm 
Retro Guru
User avatar

Joined: Fri Aug 12, 2011 10:45 pm
Posts: 587
I use a reamer and plenty of gt85 :-)


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PostPosted: Thu Oct 24, 2013 7:15 pm 
Dirt Disciple

Joined: Wed Feb 10, 2010 5:28 pm
Posts: 33
Location: Suffolk UK
johntomjoe wrote:
I use a reamer and plenty of gt85 :-)


I've never seen one before. I assume GT85 lubricates the cutter?


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PostPosted: Thu Oct 24, 2013 7:42 pm 
Retro Guru
User avatar

Joined: Fri Aug 12, 2011 10:45 pm
Posts: 587
sorry not a reamer ...a hoaner like this it fits on my battery drill ,the gt 85 is a good lube and you have to make sure you don't bring it up as far as the slit in the frame as it rips the stone off :-)


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PostPosted: Thu Oct 24, 2013 8:00 pm 
Dirt Disciple

Joined: Wed Feb 10, 2010 5:28 pm
Posts: 33
Location: Suffolk UK
johntomjoe wrote:
sorry not a reamer ...a hoaner like this it fits on my battery drill ,the gt 85 is a good lube and you have to make sure you don't bring it up as far as the slit in the frame as it rips the stone off :-)


That looks neat!

A quick Google search of tool suppliers has drawn a blank. Where can I purchase one from?


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