TM 10-3930-659-34 4-6. CYLINDER HEAD ASSEMBLY REPAIR (Con’t). 13. Using     outside     caliper     micrometer,     measure outside    diameter    of    cylinder    head    valve    (5) stems.        Outside    diameter    must    be    0.3096- 0.3104    in.        (7.8638-7.8842    mm)    for    intake cylinder    head    valves    and    0.3090-0.3100    in. (7.84867.8740   mm)   for   exhaust   cylinder   head valves. If measurement is not within specification, replace cylinder head valve. 14. Subtract   measurement   taken   in   step   13   from measurement taken in step 5. Difference is valve to-guide clearance (11). Clearance measurement must be 0.0020-0.0040 in. (0.0508-0.1016  mm).    If  clearance  is  not  within specification, replace cylinder head valve. 15. Position cylinder head valve (5) in cylinder head (4).    Using    depth    gage    micrometer,    measure distance  from  deck  of  cylinder  head  to  cylinder head  valve.  Measurement  must  be  0.024-0.044 in.   (0.610-1.118   mm)   for   intake   cylinder   head valves   and   0.089   in.   (2.26   mm)   for   exhaust cylinder   head   valves.   If   measurement   is   not within specification, replace cylinder head valve. 4-24