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 TM 55-1905-223-24-5
(d)
The cylinders are numbered from the front gear cover end of the engine.
(e)
The engine firing order is 1-5-3-6-2-4.
(f)
Each cylinder has three rocker levers. The rocker lever nearest the center of the housing is the intake
lever (3, FIGURE 2-38). The exhaust lever is reference (1) and the injector lever is (2).
(g)
The valves and the injectors on the same cylinder are not adjusted at the same index mark on the
accessory drive pulley (see Table 2-3).
(h)
One pair of valves and one injector are adjusted at each pulley index mark before rotating the
accessory drive to the next index mark.
(i)
Two crankshaft revolutions are required to adjust all the valves and the injectors.
FIGURE 2-38. Identifying Rocker Levels .
Table 2-3. Injector and Valve Adjustment Sequence
1.
Bar Engine in
Direction of
Pulley
Set Cylinder
Rotation
Position
Injector
Valve
2.
Start
A
3
5
Advance to
B
6
3
Advance to
C
2
6
Advance to
A
4
2
Advance to
B
1
4
Firing Order: 1-5-3-6-2-4
C
5
1
2-119
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