Valve Spring

VALVE SPRING
Free height 50.3 mm (1.9831 in.)
Pressure
Standard 418.0 N (42.6 kg, 93.9 lb) at 29.17 mm (1.484 in.)
Limit 393.0 N (40.1 kg, 88.4 lb) at 29.17 mm (1.484 in.)
Out-of-square Less than 2.2 mm (0.087 in.)