I was never able to afford new Campy Record parts so always bought used parts off of Craig's list or eBay. And I had continuous problems with them. They would shift OK over part of the range but they would jump gears. Or they would start jumping gears and you would shift up and then down a gear and they would operate fine. I always thought that it was me not knowing how to properly adjust the shifter/derailleur combinations.
This went on for years since I recovered from my concussion until finally it occurred to me that shifters, like everything else, wear or even wear out with use.
So I obtained a new spare Record lever that was of course an incomplete part. I had to change the brake lever (the outside lever) and the hoods from the old part to the new. Surprise! The problems of jumping gears disappeared.
You have to be careful installing the old lever into the new body since the edges are sharp and can cut the bearing surfaces, And you also have to be very careful that all of the hood nubs are in the body receiver cavities else the levers appear to be sticking. It the brake lever doesn't work properly it is probably the brake lever bearing surfaces being cut during installation. If you put some light grease on them before installation you are unlikely to have this problem. If the shift level isn't moving properly it is likely to be the lower hood nub not being in the body cavity.
Shimano doesn't seem to offer these rebuilt kits since I suppose they are so much cheaper than Campagnolo to begin with. Or perhaps the type of mechanism they use is not open to the same type of wear. I did install an Ultegra group on my Time VX and it shifts perfectly. I don't know if that is because it was lightly used or because the mechanism is designed differently. I have a difficult time getting used to Shimano since the "shift" levers work opposite and I've been using Campy ever since I could afford it. I always end up shifting backwards.
In any case this is just to inform you that your local Campy dealer carries these rebuild components while 10 speed supplies last.
This went on for years since I recovered from my concussion until finally it occurred to me that shifters, like everything else, wear or even wear out with use.
So I obtained a new spare Record lever that was of course an incomplete part. I had to change the brake lever (the outside lever) and the hoods from the old part to the new. Surprise! The problems of jumping gears disappeared.
You have to be careful installing the old lever into the new body since the edges are sharp and can cut the bearing surfaces, And you also have to be very careful that all of the hood nubs are in the body receiver cavities else the levers appear to be sticking. It the brake lever doesn't work properly it is probably the brake lever bearing surfaces being cut during installation. If you put some light grease on them before installation you are unlikely to have this problem. If the shift level isn't moving properly it is likely to be the lower hood nub not being in the body cavity.
Shimano doesn't seem to offer these rebuilt kits since I suppose they are so much cheaper than Campagnolo to begin with. Or perhaps the type of mechanism they use is not open to the same type of wear. I did install an Ultegra group on my Time VX and it shifts perfectly. I don't know if that is because it was lightly used or because the mechanism is designed differently. I have a difficult time getting used to Shimano since the "shift" levers work opposite and I've been using Campy ever since I could afford it. I always end up shifting backwards.
In any case this is just to inform you that your local Campy dealer carries these rebuild components while 10 speed supplies last.