TM 5-4310-386-14
5-41. Valves (Cont).
b.
Replace. (figure 5-62)
NOTE
There are two valves, one exhaust valve and one intake valve. Replacement of each valve is the
same.
(1) Secure cylinder head (1) in clamp stand and clamping plate.
(2) Using valve spring compressor, compress valve spring (2).
(3) Remove taper collets (3) and spring cap (4).
(4) Remove valve spring compressor.
(5) Remove valve (5) and valve spring (2).
(6) Remove stem seal (6) and valve rotator (7).
(7) Remove valve seat insert (8).
(8)
Using circlip pliers, remove circlip (9) and valve guide (10).
(9)
Measure length of valve spring, length unloaded, fatigue limit 2.2 inches (56 mm) and length, normal 2.32
± 0.07 inches (59 + 1.9 mm).
(10)
Install valve guide (10).
(11)
Using circlip pliers, install circlip (9) on valve guide (10).
(12)
Install valve seat insert (8).
(13)
Install stem seal (6) and valve rotator (7).
(14)
Install valve (5) and using valve spring compressor, compress valve springs (2).
(15)
Install spring cap (4) and taper collets (3).
(16)
Remove valve spring compressor.
(17)
Remove cylinder head (1) from clamp stand and clamping plate.
FOLLOW-ON MAINTENANCE
(1)
Install cylinder head (para. 5-40).
(2)
Install push rod tubes (para. 5-39).
(3)
Install rocker arms and push rods (para. 5-38).
5-174
