TM 9-4520-251-14
6-4 VALVES, VALVE SEATS, AND GUIDE (CONT)
Location/Item
Action
Remarks
7. Valve seat
Tighten valve seat (2 or 4) using center punch at
final instal–
three equally spaced points. Peen over edge
Iation
around entire valve seat as illustrated. The
valve seat should then be ground lightly and
valve seat lapped lightly. Clean thoroughly.
6-8
