So, I have decided to have a go at a PM Research No4 build. Base has been machined, bearing blocks more or less complete with additional bushes. Crankshaft and flywheel nearly finished.
Next job is to drill and tap the flywheel for the grub screw then need to cut the keyway and make the key. After that I will polish up the completed parts then move on to the frame.
I would have been a bit further on but this arrived a few weeks ago.
I had to reorganise quite a bit of the workshop and build a base for it to live on. A few years ago after I got rid of my cnc router I said I would never build another but the pull of the dark side was too much to resist. This will be converted to cnc but hopefully I will finish off the engine before getting stuck into it.