VALVE LASH CHECK - Continued
5. Inlet valves and exhaust valve for cylinder number 1 are fully closed if piston number 1 is on the compression
stroke and the rocker arms can be moved by hand. If rocker arms cannot be moved by hand and the valves
are slightly open, the number 1 piston is on the exhaust stroke.
6. Refer to Table 1 for crankshaft positions for valve lash settings.
Rotation (viewed from flywheel end)
Check and adjust with piston no. 1 on this stroke
Top center compression stroke
Check and adjust with no. 1 piston on this stroke
Top center exhaust stroke
7. For inlet valves, valve lash is measured between rocker arm (Figure 2, Item 11) and bridge (Figure 2, Item 7).
For exhaust valves, valve lash is measured between rocker arm (Figure 2, Item 12) and valve stem (Figure 2,
8. Tap each inlet rocker arm (Figure 2, Item 11) and each exhaust rocker arm (Figure 2, Item 12) with a soft face
mallet. Check valves for correct valve lash shown in Table 2. Valves within the acceptable range do not have
to be adjusted.
0.012-0.018 in. (0.30-0.46 mm)
0.022-0.028 in. (0.56-0.72 mm)
9. If valve lash for all valves is within acceptable range, proceed with steps 11 thru 13.
10. Perform valve lash adjustment on any valve with readings outside the acceptable range.
11. Remove timing bolt (Figure 2, Item 20) and install plug (Figure 2, Item 19) on flywheel housing.
12. Install crankshaft damper and crankshaft pulley (WP 0104).
END OF TASK