Hello. I have a question about lubricating an old 3 speed internal shifting hub. I read the thinger on Sheldon Browns page about 3 speed maintenance, and it said that most have a cap in which to pour oil. However, the one I have does not seem to have any such opening along the curved wall of the hub.
I was wondering how one would go about lubricating or finding out how to lubricate/grease this particular hub.