F 150 2WD Pickup V8-5.4L SOHC VIN 3 (1999)
Valve Spring: Specifications
Valve Spring Compression Pressure
Intake
720-800 N at 28.02 mm
Exhaust 720-800 N at 28.02 mm
Valve Spring Free Length
Intake
53.37 mm
Exhaust 53.37 mm
Valve Spring Installed Pressure
Intake
287.19-321.19 N at 42.56 mm
Exhaust 287.19-321.19 N at 42.56 mm
Valve Springs Installed Pressure Service Limit
Intake
5% Pressure Loss N at 28.80 mm
Exhaust 5% Pressure Loss N at 28.80 mm
Valve Springs Out of Square Limit
Intake
2.0 deg
Exhaust 2.0 deg
