I put the head back on and took the weight off and released the clutch, took the fan off to get access to the flywheel nut. I marked the flywheel to the housing, and with a wrench on it, I can see the flywheel move back and forth 1/8 inch in each direction, but it does not move and stay, it moves back to the mark as soon as pressure is released. Couple questions -
Am I just noticing play in the mechanics, or is the piston moving slightly as I try to rock it back and forth? I tried to look in the plug hole, but I can't see well enough with the head on to see if it is moving. My guess is it is just play in the mechanics, but I don't know, maybe just pessimistic.
How much pressure can I put before I bungle things up? I did loosen the flywheel nut, so - figure that much pressure is OK, but not sure. I've always just put rope in the cylinder to remove fly wheel nuts before, so - my experience is pressure enough to turn the flywheel nut off is fine, but don't know these motors.