As a follow / close out on this chaps, I have learned that the oil lock piece should have a small flat on the internal bore into which the damper piston rod locates. My lock pieces have a damaged flat on one side and missing flat on the other. That is why I couldn’t line anything up. With that little bit of info, everything makes sense. Happy about reassembly and setup.
Anybody got a spare Oil Lock Piece they want to sell?? Of course they aren’t available any more.