Nice fix Rich. I just recently bought a small mill and I've been wanting to get a rotary table which may be just what I need since I do not think I can bore a hole large enough for the ring.
Pay particular attention to your third picture. That is the key that sheared off of my distributor and caused all kinds of grief. Our fix was to slide the collar over a short piece of 1/2" dia. aluminum rod. Chuck it into the vise and then drill it. We centered the drill on the joint between the collar and shaft then drilled through the length of the collar. I do not remember the size of the drill bit but it's diameter equaled the diameter of the key slot on the dist shaft. We then installed the collar on the shaft and used a piece of stainless wire of the correct size to locate the collar properly and epoxied it in place.
When I pull my Dist to make the ring for the cap I'll dis-assemble it and take pictures if you want.
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