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Campagnolo Ergo Rebuild Issue

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Campagnolo Ergo Rebuild Issue

Old 07-28-08, 09:43 PM
  #1  
JBS103
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Campagnolo Ergo Rebuild Issue

Okay, so I have a crashed 2007 Record shifter that, internally (to my knowledge, as it shifted fine post-crash), is in perfect shape. I would have kept on riding it, except for the fact that body took a pretty substantial blow; enough to crack off the brake blade holders (for lack of a better word). I'll preface my post by saying that all the parts beyond the body are accounted for and are undamaged.

Anyway, I found a replacement body, switched over the internals, and successfully achieved 9 clicks in both directions up and down the cassette. The issue I have, though, is the throw on the shifter arm (not the thumb lever) is quite large. I don't get a click until I have displaced the lever more than I would expect normally from a functioning Record lever. For what it's worth, the lever action is still light and smooth. I say this because it doesn't feel like anything is binding up inside.

So I opened the lever up again and investigated the issue a little bit more. I have a brand new lever sitting next to me so I can at least peek inside at what is going on (I don't plan on opening this one up). There is one thing I noticed that is different in the way that the two levers worked. The new, un-opened lever's g-spring carrier (with the little post) is fixed in place and has no play in it during each shift. It seems as if the top-most, large coil spring pins the carrier post into the body, resulting in quick, silent, and crisp shifts. On my rebuild lever, however, the carrier has play back and forth. When I shift, the post slides back and forth in the little notches that Campagnolo cut into the body depending on which direction I am moving in. This in turn causes the lever to take up quite a bit of slack before it engages the notched wheel that actually begins the shifting process.

I'm almost positive this is what is causing my issue. If I wedge a small screw driver into free space around the carrier post, the shifting immediately tightens up and works as expected. The problem, now, is how to fix it. I've checked to make sure my top-most coiled spring is in place and is up to proper tension, but even when its so tight that the shifter skips clicks, the post still moves. I'm 98% certain that I'm not missing parts. I've looked at the exploded diagram and I've accounted for every piece. The lever works, it just seems to be lazy.

Any gurus out there that have any advice?

P.S. This is difficult to explain in words. I will try to get pictures if no one can get anywhere with my current description.

Last edited by JBS103; 07-28-08 at 09:46 PM.
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Old 07-29-08, 04:25 AM
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Easy, send it to Branford. I sent them a Chorus shifter that I crashed and cracked the body. They put it back together and it shifts perfectly after 3 years of use. They're in Seattle now but they used to be in Branford CT, not all that far from you. (I know, you want to do it yourself)
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Old 07-29-08, 08:26 AM
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Or I could just buy a new lever. That's not really the point though. I have nothing to loose by trying this, really.

Thanks anyways.

Anyone else want to take a stab?
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Old 09-04-08, 05:20 PM
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I'm afraid I don't have an answer to your question, but I'm getting ready to do the same to my Veloce RH brifter. I broke the piece of the body that holds the inner brake pivot. I'm curious how hard it was to get the brake lever into the new body? Haven't found any instructions for that part; I did see what looked like some good instructions on removing/replacing the shift mechanism at https://www.nuttycyclist.co.uk/cycling/ergo-rebuild.htm
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Old 09-04-08, 07:40 PM
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In 2007 Campy switched all of their Ergo brifters to a new "QS" (stands for Quick Shift) design that was said to produce less lever travel and less free play for each shift then 2006 and prior models. I expect your repair parts were pre-QS.
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Old 09-04-08, 10:02 PM
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Originally Posted by HillRider View Post
In 2007 Campy switched all of their Ergo brifters to a new "QS" (stands for Quick Shift) design that was said to produce less lever travel and less free play for each shift then 2006 and prior models. I expect your repair parts were pre-QS.
Hillrider may have misunderstood. This appears to be the right ergo shifter which has nil to do with QS. He may have meant "Ultra" which is supposed to make the right shifter a bit smoother in shifting. The only difference between old and new g spring (officially called index spring carrier) carriers is the material from which they are made. The old ones were alloy (as shown in the video linked below) and the new ones are a composite material. Have you seen this video? https://www.youtube.com/watch?v=qSAnAmBXYSY
It may assist you in determining your problem. You are correct in your assumption that the g spring carrier should not move from side to side when the retention washer is screwed down on top of the coil spring. This assumes that the spring coiling bushing is properly engaged and the coil spring is properly pretensioned. If that bushing slips off of the central pivot it will create a problem. Given you description, I can't figure out why the g spring carrier would move side to side unless something beyond what you have mentioned was damaged
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Old 09-05-08, 06:55 AM
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I'm not conversent with the inner workings of Ergos but as I understood it (from Campy's own literature) "QS" applied to both left and right brifters and implied a shorter shifting stroke for both. Apparently that isn't the issue here.

I will say that I have '06 10-speed Ergos, (Pre-QS, one Chorus and one Record) on two bikes and a friend has '07 QS Record Ergos on his bike and I notice very little difference in feel among them.
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Old 09-05-08, 07:53 AM
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Originally Posted by HillRider View Post
I'm not conversent with the inner workings of Ergos but as I understood it (from Campy's own literature) "QS" applied to both left and right brifters and implied a shorter shifting stroke for both. Apparently that isn't the issue here.

I will say that I have '06 10-speed Ergos, (Pre-QS, one Chorus and one Record) on two bikes and a friend has '07 QS Record Ergos on his bike and I notice very little difference in feel among them.
Not that it matters a whole lot but the 2007 Campy catalog states that the QS innovation mates the left brifter with the QS front der. Most agree that there is no radical change in shifting performance.

Referring to Ergopower QS Controls, "....their left hand control mechanism has been slightly modified to increase the performance reference when interfaced with the front QS derailleur."

"Ultra," on the right shifter, was introduced on the 2004 Record grouppo. Campy stated, "New surface treatments have been applied to the internal mechanisms to make the action noticeably more gentle."

More a matter of marketing than performance me thinks.
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Old 09-05-08, 08:00 AM
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Originally Posted by RockyMtnMerlin View Post
Not that it matters a whole lot but the 2007 Campy catalog states that the QS innovation mates the left brifter with the QS front der. Most agree that there is no radical change in shifting performance.

Referring to Ergopower QS Controls, "....their left hand control mechanism has been slightly modified to increase the performance reference when interfaced with the front QS derailleur."
I realize they changed the FD's geometry and shifting when they went to QS but I took it to mean they also "improved" the rear shifting. Perhaps not.

Originally Posted by RockyMtnMerlin View Post
More a matter of marketing than performance me thinks.
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Old 07-20-09, 01:03 AM
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Were you able to resolve this, as I have the same problem after repairs to fix the downshifting have left the upshifting exactly as you describe, with two mechanics unable to fix so far? Tempted to tear down the mech myself, but would be great to know exactly what to look for, rather than just go exploring.
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Old 07-20-09, 11:12 AM
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I'd probably buy new g-springs and a spring retainer and rebuild.

The left front rachet, at the very front of the main index shaft is what makes a left shifter QS. It's got nothing to do with the parts inside the ergo body.

I'm not sure if it's possible for the front rachet to be installed with improper "timing", but perhaps the front rachet teeth got damaged. If the right finger lever is working properly, it can execute three clicks with one sweep of the lever. If you're not getting that, then something is wrong.

Another common problem is over tensioning the big coil spring. It takes the smallest possible fraction of a turn to pretension it. There are two methods of tensioning the spring. Some people put the center tail into the aluminum part and engage that aluminum part with the flats on the indes shaft, then swing the other end over to the spring retainer. That can't be over 1/4 turn. The youtube video show the alternate method. The result of overtensiong the spring is the shifter won't hold it's position against the spring pressure from the RD. It will autoshift to smaller cogs.

I've got some lengthy instructions that I could e-mail to you.

https://www.youtube.com/results?searc...&search=Search
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