How to remove downtube shifters prior to frame painting
12-29-23, 04:19 PM
#1
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How to remove downtube shifters prior to frame painting
Older Cannondale frame. Have removed everything from the frame except:
Any advice on that?
What about the funky plastic pump peg? Cable guides? We removed one, which seemed like it was held in place with a couple of plastic pegs that were molded in. Are there replacements for those? For the pump peg? I assume not, but hoping it doesn't hurt to ask :-)
- pump peg
- top tube cable housing guides
- maybe some parts of the downtube shifters??
Any advice on that?
What about the funky plastic pump peg? Cable guides? We removed one, which seemed like it was held in place with a couple of plastic pegs that were molded in. Are there replacements for those? For the pump peg? I assume not, but hoping it doesn't hurt to ask :-)
12-29-23, 04:43 PM
#2
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Shine a light into the boss and look for a bolt or screw head.
Vitus frames of a similar era used bosses screwed and glued together. They fairly often came unstuck, more so after the introduction of Shimano Indexed Shifting, with the indexed down tube shifters perhaps causing more load to the boss.
If the Cannondale bosses are screwed I’d proceed slowly and carefully - once the bolt/screw head is wrecked drilling them out would probably become necessary…
Vitus frames of a similar era used bosses screwed and glued together. They fairly often came unstuck, more so after the introduction of Shimano Indexed Shifting, with the indexed down tube shifters perhaps causing more load to the boss.
If the Cannondale bosses are screwed I’d proceed slowly and carefully - once the bolt/screw head is wrecked drilling them out would probably become necessary…
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12-29-23, 08:32 PM
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I would mask the shaft and just paint the rest to match the frame.
There's a good chance these are screwed and glued and not meant to be removed and put back on. They are getting hard to find as replacements.
There's a good chance these are screwed and glued and not meant to be removed and put back on. They are getting hard to find as replacements.
Last edited by Kontact; 12-29-23 at 08:37 PM.
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12-29-23, 08:56 PM
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They are meant to be removed for painting.
Use an X-Acto knife to carefully pry off the thinner outside piece- note orientation, take a camera picture Then unscrew the threaded metal part- lefty loosy. The rest just comes out. Keep all small,parts safely bagged for future use.
The pump peg unscrews, left loosy.
The top tube cable guide pegs should not be removed until the fork and headset are off. Then carefully press them down into the top tube using an awl and remove them by shaking the frame with the head tube down until they fall out onto the newspaper that you have thoughtfully placed on the floor so as not to lose them.
The cable hanger can be removed but sadly not replaced.
Use an X-Acto knife to carefully pry off the thinner outside piece- note orientation, take a camera picture Then unscrew the threaded metal part- lefty loosy. The rest just comes out. Keep all small,parts safely bagged for future use.
The pump peg unscrews, left loosy.
The top tube cable guide pegs should not be removed until the fork and headset are off. Then carefully press them down into the top tube using an awl and remove them by shaking the frame with the head tube down until they fall out onto the newspaper that you have thoughtfully placed on the floor so as not to lose them.
The cable hanger can be removed but sadly not replaced.
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12-29-23, 09:27 PM
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12-30-23, 03:18 PM
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Correct.
But other versions were not meant to be removed, so the below advice applies to this frame, not necessarily others.
But other versions were not meant to be removed, so the below advice applies to this frame, not necessarily others.
They are meant to be removed for painting.
Use an X-Acto knife to carefully pry off the thinner outside piece- note orientation, take a camera picture Then unscrew the threaded metal part- lefty loosy. The rest just comes out. Keep all small,parts safely bagged for future use.
Use an X-Acto knife to carefully pry off the thinner outside piece- note orientation, take a camera picture Then unscrew the threaded metal part- lefty loosy. The rest just comes out. Keep all small,parts safely bagged for future use.
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12-31-23, 01:58 PM
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If you happen to break or lose any of the top tube cable guides, there's folks out there 3D-printing replacements.
12-31-23, 03:47 PM
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And Bob's yer uncle.
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12-31-23, 05:49 PM
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The thin blade and careful prying will get the job done. Been there many times. Just be patient and go slow. Sooner or later, they will release.
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