YL82
Perpetual Restorationist
Complete disassembly of my gear selector drum revealed what appears to be damage in the form of a chunk of metal missing from the end of the drum that the larger bearing fits over (Starwheel end). Not sure how this occurred or when - perhaps before my watch.
I'm wondering whether I should replace my drum. Since the bearing rests over the outer circumference of the face of the drum that covers most of the the "crater", I have to wonder whether it presents any operational issues.
Scores of drums are available on eBay for a wide range of prices. Looks to me like the same drum was used for all XS650 models, although there appears to have been a change in the "Special Shaped Pin" (cam follower pin) sometime in 1976 (my year) when they went away from a shoulder pin and cam follower roller to a straight pin.
I'm wondering whether I should replace my drum. Since the bearing rests over the outer circumference of the face of the drum that covers most of the the "crater", I have to wonder whether it presents any operational issues.
Scores of drums are available on eBay for a wide range of prices. Looks to me like the same drum was used for all XS650 models, although there appears to have been a change in the "Special Shaped Pin" (cam follower pin) sometime in 1976 (my year) when they went away from a shoulder pin and cam follower roller to a straight pin.