Valve Stem Tip Height Measurement Procedure

1. Check the valve stem height by measuring the distance from the valve spring seat (the flat metal surface of the valve stem oil seal) to the tip of the valve (1).
2. Compare your measurements with the following specifications:

Intake Valve Stem Tip Height Specification Intake valve:
^ 35.30-36.92 mm (1.3891.453 in.) nominal, 37.17 mm (1.463 in.) maximum.
Exhaust Valve Stem Tip Height Specification Exhaust valve:
^ 33.85-35.38 mm (1.3321.392 in.) nominal, 35.63 mm (1.402 in.) maximum.

3. If the maximum height specification is exceeded, the valve must be replaced and the stem height re-measured.
4. If the stem height with a new valve still exceeds the maximum allowed, the cylinder head must be replaced.