I developed a click associated with the crank rotation. At first I suspected the right pedal as it seemed to go away if I took my foot of the pedal and only pedaled with the left foot. Unfortunately (or fortunately) it was not the pedal.

I was reluctant to suspect the BB but when the pedal was not it, I looked closely at the frame. No apparent problem. I pulled the BB. The right cup appeared ok, but when I pulled to covers off, the grease was rusty.

Today I pulled the cups again and cleaned and re-greased the bearings. Went for a test spin. Still there. I've ordered new BB. We'll know next week.