Hi, just to put my pennyworth in . Oilite bushes are designed to be soaked in light machine oil for 24 hours before fitting, which soaks oil into the porous structure. Grease kills them, as it solidifies in the pores. They then no longer lubricate. If you want to grease the bushes, then make some out of Alluminium Bronze, scroll internally, drill and tap a grease nipple in the centre of each bush area and use Waterproof Outboard motor grease. To retain as intended, replace all the O-rings with new ( life is 7 years), and fill the whole space with Universal Farm Oil, after fittting new pre-oiled bushes. This has anti-corrosion additives in it. Needle rollers Brinnell over time unless the shaft rotates, it is a well known phenomena, I have seen it on many car suspensions over the years. The rollers grind to dust, and the shaft has roller notches in them. I worked in the Aircraft Industry for years, what works flying, works on Nortons. ie. Regular timed maintenance regardless of mileage. Nortons were meant to be fully serviced at no more than 3000 mile intervals, as were any British motorcycle of the day. I have owned them for 45 years, and know what clapped out machinery they were made on. Happy riding, Paul
