ascherer 

C&V: where a simple question gets you a loooong answer.
If you're working on a UO-8 it would have MAFAC Racer brakes. The pivot assembly is different between the Racer and the Competition I posted about, and you can't just replace the outer washers on Racers. I upgraded a set of Racers this winter, here's some pics:



The item that looks like a red tophat is an integrated bushing/washer and the flat washer sits behind the brake arms. I got the bushings from another forum member, and there's a conversation about them here: https://www.bikeforums.net/classic-v...l#post22806136. The old Delrin bushings came out easily and I used a vise to push in the new ones. The old pivot bolts could have been polished but in my experience they just get dull again so I replaced them with allen bolts, I think they're M6. I got the brass washers and allen bolts from my local hardware store, they both needed some modification, the bolts had to be cut shorter and the inner diameter of the washers needed to be a bit larger. I used a reamer and files for that. Alternatively, you can buy some excellent and pricey ready-to-go parts from Rene Herse.

Competitions use metal bushings and flat Delrin washers fore and aft, so it was a simple matter to clean everything up and put the brass washers on. Hope this is helpful, good luck with the resto and post some pictures!