TM 9-6115-730-24
0119
VALVE LASH CHECK - Continued
6. Remove timing bolt (Figure 3, Item 23) and turn flywheel 360 degrees in the direction of engine rotation. This
will put No. 6 piston at top center on the compression stroke. Install timing bolt (Figure 3, Item 23) in hole.
7. Check inlet valves 3, 5, and 6, and exhaust valves 2, 4, and 6, against criteria in Table 2.
8. If valve lash for all valves is within acceptable range Table 2, proceed with steps 10 thru 12.
9. Perform valve lash adjustment on any valve with readings outside the acceptable range.
10. Remove timing bolt (Figure 3, Item 23) from flywheel. Install seal (Figure 3, Item 26), cover (Figure 3,
Item 25), two washers (Figure 3, Item 24), and bolts (Figure 3, Item 23) on back of flywheel housing.
11. Install crankshaft vibration damper and pulley (WP 0104).
12. Install valve cover and base (WP 0100).
END OF TASK
VALVE LASH ADJUSTMENT
1. Loosen nut (Figure 1, Item 14) and loosen adjustment screw (Figure 1, Item 15) on inlet valve rocker arm
(Figure 1, Item 16) for cylinders 1, 2, and 4. Loosen nut (Figure 1, Item 6) and loosen adjustment screw
(Figure 1, Item 7) on exhaust valve rocker arm (Figure 1, Item 8) for cylinders 1, 3, and 5.
2. Refer to Table 3 and insert feeler gage of correct dimension between rocker arm (Figure 1, Item 16) or
(Figure 1, Item 8) and valve bridge (Figure 1, Item 5).
Table 3. Valve Lash Settings.
VALVES
ACCEPTABLE RANGE
Inlet
0.015 in. (0.38 mm)
Exhaust
0.025 in. (0.64 mm)
3. Turn adjustment screw (Figure 1, Item 15) or (Figure 1, Item 7) clockwise (CW) until rocker arm (Figure 1,
Item 16) or (Figure 1, Item 8) is set to specification in Table 3.
4. Tighten nut (Figure 1, Item 14) or (Figure 1, Item 6) to 17-27 lb-ft (23-37 Nm) and check adjustment again.
5. Loosen nut (Figure 1, Item 9) and loosen adjustment screw (Figure 1, Item 10) on unit injectors for cylinders
3, 5, and 6.
6. Turn adjustment screw (Figure 1, Item 10) clockwise (CW) until contact is made with unit injector. Turn
adjustment screw (Figure 1, Item 10) CW an additional 180 degrees (1/2 turn). Tighten nut (Figure 1, Item 9)
to 34-47 lb-ft (45-65 Nm).
