I've been a bit sidetracked lately but had some time this weekend so I put a fire in it
I had to rest a tall pipe on top of the chimney to get a good draught and things progressed.... unfortunately the safety valves lifted at 150 instead of 160. Then I discovered the injector refused to work. That was sort of expected as I have realised that the water supply plumbing to it is too small. I stopped the engine to check over bearings etc. It had been running with nice even exhaust beats both forward and reverse so my valve timing seems spot on. When I tried to restart it seemed reluctant
I turned it over by hand only to find a VERY tight spot, so the fire was dropped and left to cool and I went for my tea.
Much later I started disconnecting bits one I at a time hoping for the engine to free-up. Piston rods....valve rods....slide bars.....water pump....bearing caps.......still tight
Much later I discovered that the high gear selector fork had picked up on the gear...relief!
I append a couple of pictures, as yet we have no video, please be patient.