Valve Spring

Free Length 48.001-48.600 mm (1.8898-1.9134 in.)
Squareness
Standard 2.0 mm (0.080 in. max.)
Service Limit 2.5 mm (0.100 in. max.)
Force/Tension at 0.0 mm (1.28)
Standard 898-983 N (202-211 lbs.)
Service Limit 870 N (196 lbs. min.)
Force/Tension at 30 mm (1.61)
Standard 338-387 N (76-87 lbs.)
Service Limit 328 N (75 lbs. min.)