TM 10-4930-351-14
0108 00
DISASSEMBLE CYLINDER HEAD. (Refer to figure 25.)
INITIAL SET-UP:
Tools:
Materials/Parts Required
Key, Socket Head Screw, 8 mm
None
(WP 0113 00, Item 3)
Key, Socket Head Screw, 3 mm
(WP 0113 00, Item 3)
Equipment Condition:
Valve Spring Compressor
Cylinder head removed
(WP 0113 00, Item 3)
Pliers, Needle Nose
(WP 0113 00, Item 3)
NOTE
For clarity, only the exhaust valve assembly is shown exploded in figure 25. The following
procedure also applies to the intake rocker arm assembly and to either cylinder head.
1.
Remove exhaust rocker arm journal (1), and washer (2) from cylinder head (3). Discard washer (2). Remove rocker arm
(4) from cylinder head.
2.
Inspect and clean rocker arm lubrication hole (5).
3.
Using a valve spring compressor, push down on upper exhaust valve spring retainer (6) and spring (7). Remove valve
cotter (8).
4.
Remove upper exhaust valve spring retainer (6), spring (7), lower valve spring retainer (9), valve guide seal (10), and
ring (11).
5.
Remove exhaust valve (12) and valve guide (13) from cylinder head. Inspect for damage.
6.
Remove socket head screw (14) from decompression arm (15). Remove decompression arm (15), O-ring (16), washer
(17) and spring (18). Discard O-ring (16). Thoroughly clean decompression arm cavity (19).
0108 00-32
