Well, I was installing new plugs since I have the exhaust manifolds removed for header install.
I started by removing the passenger side rear plug. Old plug came out easy. Installed new plug with some anti seize and attempted to torque to 30 ft lbs (my manual stated this torque).
Spark plug broke off with the threaded portion in the engine.
Had I read the torque value on the new spark plug box, I would have realized 15 to 18 ft lbs would have been sufficient.
At least I know the broken plug isnt seized since its new with anti seize.
I guess I will be looking for a special tool to extract the broken plug.
At least the other 7 plugs are installed and torqued correctly.
Any suggestions are helpful.
Thanks.
Terry