FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Valve Spring

Free Length (Approx.) 44.4 mm (1.747 inch)
Spring Tension (Valve Closed) 333 N @ 39.2 mm (75 lbs. @ 1.54 inch)
Spring Tension (Valve open) 482 N @ 31.40 mm (176 lbs. @ 1.24 inch)