Valve Spring

SERVICE SPECIFICATIONS
Free Length:
Standard 42.65 mm (1.6791 inch)
Limit 41.50 mm (1.6339 inch)
Preload:
Standard 22.3-25.7 kg For 32.6 mm (49.2-56.7 lbs. For 1.28 inch)
Limit 21.2 kg For 32.6 mm (46.7 lbs. For 1.28 inch)
Squareness Limit 2.0 mm (0.079 inch)