TM 5-3805-248-23-2
PUSH RODS AND ARMS REPLACEMENT - CONTINUED
0265 00
VALVE LASH ADJUSTMENT
NOTE
The crankshaft must be rotated in the direction of engine rotation until the valve being adjusted closes and
the push rod is at its lowest point.
1.
Place piston #1 at top dead center on compression stroke. Refer to WP 0028 00 for barring engine over.
2.
Loosen nut (7).
3.
Loosen adjusting screw (8).
4.
Adjust rocker arm. Apply hand pressure on bridge assembly (6). Insert feeler gage between rocker arm and bridge
assembly wear seat (5). Turn adjusting screw (8) until bridge assembly wear seat touches gage.
5.
Torque nut (7) to 22 lb-ft (30 Nm).
6.
Loosen nut (10).
7.
Loosen bridge adjusting screw (11).
8.
Adjust exhaust valve (9) and inlet valve (12). Insert feeler gage between exhaust valve and bottom of bridge adjusting
screw (11). Clearance must be 0.027-0.033 in. (0.7-0.84 mm). Insert feeler gage between inlet valve (12) and bridge
assembly (6). Clearance must be 0.012-0.018 in. (0.3-0.46 mm).
9.
Torque nut (10) to 22 lb-ft (30 Nm).
ROCKER ARM
7,8
12
10,11 (HIDDEN)
9
394-645
5
6
FEELER
GAGE
394-646
0265 00-3
