Plan was to replace the locked up engine with the one in the last pic above. I did a compression test and found cylinder #3 to be dead. I then removed the valve cover and found a broken rocker. I replaced that but and that raised the compression from 5psi to 75 but thats clearly too low since the other cylinders are around 145 to 155. Do you guys think the valve could have buildup or something that is preventing a good seal? What are the odds its got bad rings, and had the rocker break? Valve is moving as much as the others so the cam still looks good. Should I run the engine more now and see what happens?
