TM 9-2320-302-34
0032 00-24
CYLINDER HEAD REPAIR - CONTINUED
0032 00
ASSEMBLY - CONTINUED
NOTE
New valve seat inserts are preground. Check for concentricity after installation. Do not grind new valve seat
insert unless concentricity exceeds 0.002 in (0.05 mm).
41.
Ensure valve seat insert angle (51) is 31 degrees.
42.
Ensure valve seat width (52) is 0.084 in (2.14 mm) for intake valves and 0.105 in (2.66 mm) for exhaust valves.
43.
Grind valve seat (79) lightly for full 360 degrees, only enough to true it up.
51
52
52
79