A bit more progress tonight. Started with separating the rollers and got most of it done. I still need to get the right roller off the shaft but the bearing will not be moved just yet. In the mean time I made a 'pusher', the opposite of a puller, to separate the engine from the driveshaft. I tightened the nuts on each bolt bit by bit and could not get over just how much they had to be tightened. They gradually crushed the plywood packers (to spread the load on the engine) and wasn't sure they were pushing the engine and driveshaft apart. I undid the 'pusher' after seeing fhe ply crushed so much and half expected no movement in the parts but it had moved a small bit. I reset it but this time I also used some steel packers between the bolt and the ply. I also gave the parts regular sprays of RP7 and it finally moved things apart a bit quicker until they separated completely.