All I know is, most of what I had taken for gospel on lubrication isn't necessarily correct. You don't need a lot of oil for lubrication, any excess serves to draw away the heat produced by friction, and pressure. At any rate, there is rocker shaft bushing kit on ebay, with a new shaft and bushings that get put into the rocker arms, these will of course need to be machined. There are probably other places that do it, but I had mine done through Larrowe and sons, I think they farmed them out, but nonetheless it was first class job, and it wasn't too expensive. (it has been a long time)
