Motor is out of a 300M and I believe is the 4-8 motor where the cylinders shut down if not needed.
When I turn the motor over with the coil unplugged, I carry 200# compression on all 8 cylinders. But when I RUN the motor at an idle, on number 4 cylinder, none of the rockers are moving. But they do moving when hand cranking motor. Pulled head and #4 cylinder is oil soaked. It appears there are solenoids that control oil flow to every other cylinders and this cylinder has a solenoid for it. WHAT IS WRONG AND what should I do. Give me the old iron. That I understand.