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 Post subject: Internally routed cable?
PostPosted: Wed Jul 03, 2013 5:13 pm 
Devout Dirtbag

Joined: Sat Feb 09, 2013 12:41 am
Posts: 109
OK - finally time to strip & restore 'The Mullett'. Paint job is going to keep it off the road for at least 4 weeks but she should be looking nice pretty soon after her 30th birthday in August...
Question today (might sound a bit daft but):
When I remove the (concealed) rear brake cable - how do I get it back in & still manage to feed it back out the other end?


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PostPosted: Wed Jul 03, 2013 5:22 pm 
Retro Guru

Joined: Tue Oct 16, 2012 4:16 pm
Posts: 1568
Location: NOTTINGHAM
Keep the existing cable outer in place. Feed the new cable through. Take the old outer off then feed a new cable outer on (assuming you are changing the outer) or reverse and keep the existing cable in place and feed the new outer on. Either way you use the existing as a guide for the new...hope this makes sense???


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PostPosted: Wed Jul 03, 2013 5:32 pm 
Devout Dirtbag

Joined: Sat Feb 09, 2013 12:41 am
Posts: 109
Yeah - thanks - I'd thought that might be the only way. Just worried that it (leaving a cable in) might cause an issue for the sanding & painting of the frame but will discuss with the painter...


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PostPosted: Wed Jul 03, 2013 5:38 pm 
Retro Guru

Joined: Tue Oct 16, 2012 4:16 pm
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Location: NOTTINGHAM
Keep the inner in place but leave plenty and then crimp it together so it hangs loose in a joined circle - shouldnt affect the areas where the cable exits the frame too much for when the paint is being applied - not perfect but a small inconvenience for the man with the spraygun.


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PostPosted: Wed Jul 03, 2013 7:39 pm 
Old School Hero

Joined: Sun Apr 28, 2013 8:56 pm
Posts: 209
Location: Flipping between Wigan and Lincoln
I thought frames with internally-routed cables normally had a narrow gague tube brazed in there to guide the cable through? (and to keep water out of the tube)?


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PostPosted: Wed Jul 03, 2013 7:51 pm 
Retro Guru

Joined: Tue Oct 16, 2012 4:16 pm
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Location: NOTTINGHAM
I believe most do - however, I have one that doesn't - spent hours trying to fathom how to sort it as i'd taken the cables out assuming it had an internal tube - won't fall for that one again!


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PostPosted: Wed Jul 03, 2013 9:29 pm 
Devout Dirtbag

Joined: Sat Feb 09, 2013 12:41 am
Posts: 109
How can you tell whether it does (have an internal guide tube)? Or is it safest to assume it doesn't?


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PostPosted: Wed Jul 03, 2013 9:56 pm 
Retro Guru

Joined: Tue Oct 16, 2012 4:16 pm
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Location: NOTTINGHAM
There's probably a standard answer to your question but I don't know it! however, after that episode of removing before sussing there wasn't an internal tube, I would get the brake cable and splay the end 2mm's, when you fit it into the toptube you should be able to hear it scratching the inner walls of the cable tube. No noise = no internal cable tube. Random answer I know but that's what I had to do on one of my frames.


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PostPosted: Wed Jul 03, 2013 10:54 pm 
Old School Grand Master
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Joined: Fri Oct 14, 2011 8:41 pm
Posts: 8246
Location: Cumbria
Finny

Just out of curiosity how did you re-route the missing cable? a piece of cotton with a small weight attached plus gravity and a lot of frame waggling ?

Shaun


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PostPosted: Thu Jul 04, 2013 12:14 am 
Retro Guru

Joined: Tue Oct 16, 2012 4:16 pm
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Location: NOTTINGHAM
Midlife wrote:
Finny

Just out of curiosity how did you re-route the missing cable? a piece of cotton with a small weight attached plus gravity and a lot of frame waggling ?

Shaun


Wait for it....drinking straw with the end snipped into quarters to create a flared effect, inserted into top tube, cable inserted into other end of tube, bit of luck and hey presto, job done :facepalm: never again!


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