VALVE SPRING INSPECTION

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

• If not as specified, replace the valve spring.

Pressing force:

494.9 N {50.47 kgf, 111.2 lbf}

Standard height:

27.80 mm {1.094 in}

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

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

• If not as specified, replace the valve spring.

Valve spring maximum out-of-square:

1% (2.10 mm {0.0826 in})