TM 9-2320-302-34
0027 00-12
ROCKER ARM ASSEMBLIES MAINTENANCE - CONTINUED
0027 00
ADJUSTMENT - CONTINUED
c.
Stop engine rotation at time of valve overlap. Note which cylinder this is and follow sequence listed in Table 1 to
correctly set valves and injector heights. The timing can be started with any cylinder in valve overlap.
d.
Insert 0.008 in (0.203 mm) thickness gage (27) between tip of intake valve stem (28) and intake valve button (15)
at end of rocker arm.
e.
Loosen jamnut (11) and turn adjusting screw (12) until thickness gage (27) produces even or smooth pull between
intake valve stem (28) and intake valve button (15).
f.
Tighten jamnut (11) to 30-35 lb-ft (41-47 Nm) and remove feeler gage (27).
g.
Insert thickness gage (27) again to ensure adjustment did not change when jamnut (11) was tightened. Readjust as
necessary.
h.
Using 0.026 in (0.660 mm) thickness gage, adjust exhaust valves in same manner as intake valves.
Table 1. Valve Lash and Injector Height Adjustment Sequence.
CYLINDER WITH VALVE
OVERLAP
SET VALVES ON
CYLINDER NO.
SET INJECTOR HEIGHT
ON CYLINDER NO.
6
1
5
2
5
3
4
3
6
1
6
2
5
2
4
3
4
1
15
28
11
12
27
