Originally Posted by
Bob Dopolina
My proof is the internal memo I got from the Campagnolo Service Center in Italy telling us to remind distributors and retailers to face their BB shells.
Yep, they're covering themselves from fraudulent warranty claims. Where are the failed bearings?
Originally Posted by
Bob Dopolina
My proof is in the 20+ years of wrenching for a living that has demonstrated to me, over and over again, the prudence of chasing and facing.
That's hardly proof. Where are the piles of prematurely failed bearings?
Originally Posted by
Bob Dopolina
You may get away with not doing it but, then again, you may not. You'll never know just by looking at the shell (unless the threads are obviously damaged).
In my experience (a mere 11 years in the shop), very few frames actually require re-facing the BB shell, and on those that do, it's pretty obvious that it's needed. Binding and difficulty in adjusting bearing preload are two signs that something is amiss.
I'm standing by what I first said. Unless there's a problem, facing/chasing is unnecessary.