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PostPosted: Tue Nov 09, 2010 3:18 pm 
King of the Skip Monkeys
King of the Skip Monkeys
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Joined: Wed Nov 07, 2007 4:34 pm
Posts: 26181
Location: Moomin Valley
that is just nice.

Leave the frame upside down for awhile. But note that penetrating oil doesnt help if the post is corroded into place.

You could try warming the seat tube with a hairdryer, then cooling the seatpost with plumbers freezing spray:

http://www.screwfix.com/prods/13369/Plu ... -Kit-220ml


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PostPosted: Tue Nov 09, 2010 3:41 pm 
retrobike rider
retrobike rider
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Joined: Mon Sep 21, 2009 10:17 am
Posts: 1303
Location: Lewes, East Sussex
It's hard to tell exactly what's holding it in there. As I said the rest of the bike came apart very easily, no corrosion anywhere. Trust it to be the bit that isn't original to cause me problems. So frustrating, really just want to get out on her :cry:

I will carry on with the oil for a couple of days and then have a go at the hairdryer/freeze plan. Thanks for the tips guys...


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PostPosted: Tue Nov 09, 2010 5:53 pm 
retrobike rider
retrobike rider
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Joined: Thu Jan 21, 2010 11:13 am
Posts: 1312
Location: I don't know, the satnav's bust!
Had the same problem with my Marin - steel and alloy fuse well together. tried all the oil/freeze/heat methods and nothing worked, even some solid knocks with a hammer and putting the seat tube in a vice and turning the frame.

There are some chemical solutions to the problem I've been told e.g. caustic soda or acid (not that sort!!), but didn't try those.

In the end I had to resort to cutting it off an inch or so above the tube and sawing two vertical cuts using a padsaw. It took me at least three hours of sawing and a lot of swearing, taking care not to cut into the tube itself.

Good Luck


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 Post subject:
PostPosted: Wed Nov 10, 2010 4:39 pm 
retrobike rider
retrobike rider
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Joined: Mon Sep 21, 2009 10:17 am
Posts: 1303
Location: Lewes, East Sussex
YESSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS!!!!!!!
Post out, build on 8)
4 days of soaking in oil, a few swift hits with a mallet, iron rod clamped to the seatpost, stand on iron rod and gently twist and pull frame upwards....

Huzzah!!


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 Post subject:
PostPosted: Wed Nov 10, 2010 4:42 pm 
Lincs AEC
Lincs AEC

Joined: Fri Sep 07, 2007 8:34 pm
Posts: 12314
Location: Branston, Lincoln
:lol:


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PostPosted: Wed Nov 10, 2010 5:22 pm 
King of the Skip Monkeys
King of the Skip Monkeys
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Joined: Wed Nov 07, 2007 4:34 pm
Posts: 26181
Location: Moomin Valley
jolly dee!


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PostPosted: Wed Nov 17, 2010 3:24 pm 
retrobike rider
retrobike rider
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Joined: Mon Sep 21, 2009 10:17 am
Posts: 1303
Location: Lewes, East Sussex
Nearly there now, :)
Just need a seatpost, chain, and set-up the cantis...
Oh, and regrease the pedals.
It's been a great project to work on as after uncovering all the grime, dirt and grease underneath she is in lovely condition. Am looking for a matching green touch-up paint to put the icing on the cake. Not many scratches but enough to warrent at least a bit of rust prevention..

Here are a couple of latest pics... (just quickies on the phone)

Image
Image


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 Post subject:
PostPosted: Wed Nov 17, 2010 4:38 pm 
King of the Skip Monkeys
King of the Skip Monkeys
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Joined: Wed Nov 07, 2007 4:34 pm
Posts: 26181
Location: Moomin Valley
looking good!


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 Post subject:
PostPosted: Wed Nov 17, 2010 9:05 pm 
Old School Grand Master
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Joined: Wed Mar 19, 2008 7:18 pm
Posts: 3186
Location: NFA
Nice one! These old 'uns do have serious appeal 8)


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 Post subject:
PostPosted: Wed Nov 17, 2010 9:20 pm 
King of the Skip Monkeys
King of the Skip Monkeys
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Joined: Wed Nov 07, 2007 4:34 pm
Posts: 26181
Location: Moomin Valley
needs mudgaurds and rack


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