TM 5-3810-305-23
0031
INSTALLATION - Continued
2.
Install four rocker shaft support assemblies (Figure 11, Item 4).
3.
Lubricate with engine oil and install four capscrews (Figure 11, Item 1) to cylinder head. Tighten four capscrews
to 92 ft-lb (125 Nm).
4.
Lubricate with engine oil and install four capscrews (Figure 11, Item 5) to four rocker shaft support assemblies
(Figure 11, Item 4). Tighten four capscrews to 18 ft-lb (24 Nm).
5.
To set valve clearance, turn rocker adjustment screws (Figure 11, Item 3) in until they touch push rod sockets.
Loosen valve adjustment screws one full turn.
6.
Timing pin is designed only to locate Top Dead Center (TDC) for cylinder number 1 and not to lock engine.
7.
Locate TDC for cylinder number 1 (WP 0044).
8.
Disengage timing pin.
9.
Valve stem to rocker lever clearances for intake should measure 0.010 inch (0.25 mm); for exhaust
0.020 inch (0.51 mm). To adjust, turn adjusting screw (Figure 11, Item 3) to obtain correct clearance and hold.
Tighten adjusting nut (Figure 11, Item 2) to 18 ft-lb (24 Nm).
1
5
4
3
2
M0022105
Figure 11.
Cylinder Head Installation.
10.
Perform valve set procedure with cylinder number 1 at TDC; timing pin will engage.
11.
Adjust intake and exhaust valves at cylinder number 1, intake at cylinder 2, and exhaust at cylinder 3.
12.
Mark crankshaft and front cover and rotate crankshaft 360 degrees. Timing pin will not engage this time.
13.
Adjust exhaust and intake valves at cylinder 4, intake at cylinder 3, and exhaust at cylinder 2.
END OF TASK
03/15/2011Rel(1.8)root(maintwp)wpno(M00036)