Is my Campy shifter worn out?

[CNY rider]

I can't find this exact symptom in prior threads so here goes.
MY right hand Campy shifter, Centaur 10 speed, about 5 years old, is acting "funny".
It shifts up the cassette (12 to 25) just fine.
When I come back down the cassette (25 to 12) it goes one or two gears individually then with one shift jumps 4 or more.

I have checked the cable and don't find any friction or hanging up.
I have checked the cassette. Lockring tight. Spacers in proper configuration.

Is this shifter in need of servicing or is there something else I may be missing?

Thanks.

[Mud]

I get mine redone after 3 years.

Bruce

[Ken Robb]

you can send it to our pal "Old Potatoe" in Boulder for a quick rebuild.

[weiwentg]

or you can have oldpotato's shop send you the springs. Not hard to do. There are videos on Youtube, and I've found Probikekit's to be the most useful for me:

http://www.youtube.com/watch?v=5Nr35wCxlFs

[oldpotatoe]

I can't find this exact symptom in prior threads so here goes.
MY right hand Campy shifter, Centaur 10 speed, about 5 years old, is acting "funny".
It shifts up the cassette (12 to 25) just fine.
When I come back down the cassette (25 to 12) it goes one or two gears individually then with one shift jumps 4 or more.

I have checked the cable and don't find any friction or hanging up.
I have checked the cassette. Lockring tight. Spacers in proper configuration.

Is this shifter in need of servicing or is there something else I may be missing?

Thanks.

Broken spring carrier, either the post or it's split..Probably feels soft, vague as well. Sent it to me for a one day turn artound.

$40 labor, 'Ultra' spring carrier and springs-$25.

[Dave]

Broken spring carrier, either the post or it's split..Probably feels soft, vague as well. Sent it to me for a one day turn artound.

$40 labor, 'Ultra' spring carrier and springs-$25.


That's a bargain for anyone who's never done one of these repairs. It's not hard the second or third time, but the first will have you pulling your hair out.

[CNY rider]

Thanks everyone.
I will live with it for another month or two and only commute on that bike.
Then it comes off the road for winter, I will take it all apart and send the shifter on a western holiday.