TM 9-4940-568-34
7-19
(13)
Clean valve heads with soft wire wheel.
(14)
Polish valve stem with crocus cloth.
(15)
Using a 0–1 in. (0–25 mm) micrometer,
inspect valve heads and stems for abnormal
wear.
(16)
Measure valve stem diameter. Minimum
diameter is 0.3126 in. (7.940 mm) and
maximum is 0.3142 in. (7.981 mm).
(17)
Mark new valves, if required, for
replacement location.
(18)
Grind face of valves being reused. Check
and replace bent valves.
(19)
Check seat angle of valves. Intake is 30
degrees and exhaust is 45 degrees.
(20)
Measure thickness of rim. The minimum
(T) is 0.031 in. (0.79 mm).
