was watching a video and he was working on a M62tub44. replaced the plugs and he said to snug them in first and then torque to about 20 ft lb??? Is this true??
23 newton meters is BMW spec on the spark plug box (and I think +/- 1). That's 16.96 ft/lb. That being said, I torque every spark plug I install to 18 lb/ft.
ASE and BMW Master Certified Technician
The tightening torque for a spark plug changes with the diameter of the spark plug. The following are the recommended torque values.
Plug thread diameter.......Tightening torque
18 mm......................... 35 to 40N·m (3.5 to 4.0 kgm)
14 mm......................... 25 to 30N·m (2.5 to 3.0 kgm)
12 mm......................... 15 to 20N·m (1.5 to 2.0 kgm)
10 mm......................... 10 to 12N·m (1.0 to 1.2 kgm)
8 mm............................ 8 to 10N·m (0.8 to 1.0 kgm)
http://www.ngk-sparkplugs.jp/english...q18/index.html
Shogun tricks and tips for the E32 series are HERE!
Bookmarks