Valve Stem Play, Check
Measure
Measure inner diameter of valve guide - use Gauge MKM-571-B. Measure the outside diameter of the valve stem with micrometer. Determine the difference between the outer diameter of the valve stem and the inner diameter of the valve guide.
perm. valve stem play:
Intake valve
0.018 to 0.052 mm.
Exhaust valve
0.038 to 0.072 mm.
Measure 