F 250 4WD Super Duty V10-6.8L VIN Z CNG (2003)
Valve Spring: Specifications
Valve Spring Compression Pressure
Intake (N @ Spec. Length) .............................................................................................................................................................. 667.3 N @ 28.02 mm
Exhaust (N @ Spec. Length) ........................................................................................................................................................... 667.3 N @ 28.02 mm
Valve Spring Free Length
Intake .................................................................................................................................................................................................................... 50.2 mm
Exhaust ................................................................................................................................................................................................................. 50.2 mm
Valve Spring Installed Pressure N @ Spec. Length
Intake ............................................................................................................................................................................................... 289.1 N @ 40.01 mm
Exhaust ............................................................................................................................................................................................ 289.1 N @ 40.01 mm
Valve Springs Installed Pressure N @ Spec. Length - Service Limit
Intake ............................................................................................................................................................................................ 274.6 mm @ 40.01 mm
Exhaust ......................................................................................................................................................................................... 274.6 mm @ 40.01 mm
Valve Springs - Out of Square Limit
Intake ............................................................................................................................................................................................................... 2.5 degrees
Exhaust ............................................................................................................................................................................................................. 2.5 degrees
