it varies from engine to engine.
Most are around 10-15 ft lbs.
The 1995 Geo Metro spark plug torque specification is 20 pounds. You should torque the spark plug intent pound intervals.
spark plug torque for a Toyota 2.4 is 95 inch/lbs
A spark plug, tork is something that sparks to run but the torque gives it extra power because it is a cadillac
The spark plug torque spec range is between 6 and 10 ft/lbs.
The spark plug torque on a 1992 Honda Accord would be approximately 13 lbs. The gap for the spark plugs is 1.1mm.
Check the service manual for proper torque spec.
A champion RC12YC spark plug is 14mm thread diameter. The torque for this size is 18-22 foot-pounds (25 to 30Neuton·meters)
The torque for spark plugs is 18 N*m or 13 ft*lbf.
15Nm
The torque is 8-15 ft./ lbs.
Spark Plug Gap is .035, Torque then to 20 foot pounds.
It depends on what type of spark plug you have. Go to www.ngksparkplugs.com/techinfo/spark_plugs/installation.asp to see a guideline of torque specs for plugs. Those are from NGK, but will cover any other spark plug as well.