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Vintage Super Record Front Derailleur - Can I Replace clamp?

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Vintage Super Record Front Derailleur - Can I Replace clamp?

Old 11-25-20, 12:28 AM
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ChicagoWandrer
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Vintage Super Record Front Derailleur - Can I Replace clamp?

My front clamp broke when something got wedged between my crank and seat tube. Looking to swap in the replacement clamp show on the left. Note the closed end--I need to get this around the pin on the main piece.
Is this possible? Any campy enthusiasts on here know how I could loose this pin to get the clamp in place?




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Old 11-25-20, 05:14 AM
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Geepig
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You have a nice little task there. There are several routes to go, but first one has to push back or grind away where the casting has been punched to retain the pin. How tight is the pin? My feeling is that unless the pin is a slide fit or you have some experience with these things or are willing to waste the clamp, then it might be better to find someone who works in an engineering shop.
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Old 11-25-20, 05:44 AM
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dsbrantjr
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Originally Posted by Geepig View Post
You have a nice little task there. There are several routes to go, but first one has to push back or grind away where the casting has been punched to retain the pin. How tight is the pin? My feeling is that unless the pin is a slide fit or you have some experience with these things or are willing to waste the clamp, then it might be better to find someone who works in an engineering shop.
Check the other end of the pin from the staked end. If it is a through hole you have a chance of driving out the pin. If it is a blind hole you are probably screwed.
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Old 11-25-20, 10:19 AM
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Moe Zhoost
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Looks like a blind hole - bummer. Perhaps you could free-up the staking by prudent dremeling and then clamp some thin vise-grips to the exposed center and try to wrestle it out. You'd probably muck up the pin so be prepared to find a replacement. I usually enjoy challenges; however I'd probably just sell (keep?) this one for parts.

Good luck. If you have a go at it, please post the outcome.
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Old 11-25-20, 04:53 PM
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I've done this repair. yes, some have a blind hole. I have a clamp band as a replacement, or you can buy a complete replacement body on ebay for 25 bucks and swap the arms over.

About a 10 minute fix.

Mark Petry
Bainbridge Island, WA
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Old 11-25-20, 10:26 PM
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Jeff Wills
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As Mark says: once you have the part it's a pretty simple job. This thread goes into detail:
Changing Spring On Campagnolo Nuovo Record F Derailleur?
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