Valve Spring

DIMENSIONS
Squareness Deviation (Max.) 2.0 mm (0.079 inch)
Free Length
Standard 42.29 mm (1.6649 inches)
Limit (Min.) 41.00 mm (1.6142 inches)
Preload [1]
Standard 20.9-23.5 kg (46.1-51.8 lbs.)
Limit (Min.) 18.7 kg (41.2 lbs.)

[1] At 32.6 mm (1.28 inches)