Ok, don't understand that you stated you adjusted to zero lash then one full turn,,, then you stated you went two full turns after zero lash???
Two full turns is too much if thats where you left it?
You installed the # 1 plug & then it's locked up (won't turn over) Wrong plug, too long, hitting the piston?
After you pulled the #1 plug back out ,,was the ground smashed close,(no gap in the plug)
MBHD
