F 150 4WD Pickup V8-4.6L SOHC VIN W (1998)
Valve Spring: Specifications
GENERAL SPECIFICATIONS
Compression Pressure N @ Spec. Length-Exhaust ....................................................................................................................... 587.14 N @ 28.02 mm
Valve Springs Free Length (Approximate)
Intake .......................................................................................................................................................................................... 49.55 mm (1.951 in.)
Exhaust ....................................................................................................................................................................................... 49.55 mm (1.951 in.)
Valve Spring-Installed Pressure N @ Spec. Length
Intake ......................................................................................................................................................................................... 244.64 N @ 40.0 mm
Exhaust ...................................................................................................................................................................................... 244.64 N @ 40.0 mm
Valve Spring-Installed Pressure N @ Spec. Length
Service Limit ............................................................................................................................................................ 10% Pressure Less @ 28.02 mm
Out of Square Limit ...................................................................................................................................................................................... 2 degrees
