Valve Spring

Valve Spring
Free Height 51.28 - 51.48 mm (2.0189 - 2.0268 inch)
Pressure
Installation 165 - 189 N (16.8 - 19.3 kg, 37 - 42 lbs.) at 33.8 mm (1.331 inch)
Valve open 290 - 330 N (29.6 - 33.7 kg, 65 - 74 lbs.) at 24.4 mm (0.961 inch)
Out-of-square Less than 2.2 mm (0.087 inch)