My Bianchi's left Campy Veloce Ergro lever has developed a rattle that's driving me crazy. So far, I've peeled back the hood and ensured that the bolt that tightens the band clamp to the bar is tight. I've also sprayed Mobil 1 lube into the mechanism and worked it in by shifting repeatedly but the rattle is still there.
The briifter still works great but this rattle is driving me mad. Please tell that there is something else I can try short of tearing it down and reassembling it - the exploded diagram looks like it's full of tiny parts.
Please help me before I go insane.