Valve Spring
- Check the valve springs for damage, free length, and tension. Replace the valve spring if it is not within the standard value presented in the table.
- To measure the squareness of the valve spring, stand the valve spring on a surface plate and measure its deflection at the top of the valve spring using a try square.
Free length mm (in) 55.2 (2.173) Tension/spring height N (kgf, lb)/mm (in) Set 235.3 - 270.7
(24 - 27.6, 52.9 - 60.8)/45.0 (1.772)Lift 578.9 - 639.9
(59.1 - 65.3, 130.3 - 143.9)/34.7 (1.366)Squareness 2.5°, 2.4 mm (0.094 in) or less