VALVE SPRING INSPECTION

1. Apply pressing force to the pressure spring and inspect the spring height.

• If it is less than the specification, replace the valve spring.

390 N {39.76 kgf, 87.67 lbf}

28.68 mm {1.129 in}

2. Measure the out-of-square of the valve spring, using a square, as shown in the figure.

(1) Rotate the valve spring one full turn and measure "A" at the point where the gap is the largest.

• If it exceeds the specification, replace the valve spring.

1° (2.10 mm {0.0826 in})