ARMY TM 9-2815-257-24 AIR FORCE TO 38G1-128-2 MARINE CORPS TM 10155A/2815-24/3 4-13 4-9.  ROCKER ARM ASSEMBLY MAINTENANCE  -  cont. C.    INSPECTION. 1. Measure the outside diameter (OD) of the rocker arm  support  shaft  (Figure  4-7).    OD  must  be 0.4685   inch   (11.90   mm),   minimum.      Replace support (1, Figure 4-6) if out of limits. 2. Measure the internal diameter (ID) of the rocker arms (Figure 4-8).  ID must be 0.4764 in (12.10 mm),   maximum.      Replace   rocker   arm   (3,   4, Figure 4-6) if out of limits. D.    INSTALLATION. 1. Install  lock  nuts  (5,  Figure  4-6)  and  adjusting screws (6) onto rocker arms (3, 4).  Install valve cap  (7).    Install  rocker  arms  onto  rocker  arm support (1). Figure 4-7.  Rocker Arm Support Shaft OD 2. Install rocker arm support (1) onto cylinder head (8) using screw (2).  Torque screw to 14.5 to 16.5 ft-lbs. (200 to 230 kg-cm). 3. Adjust valve clearance (Para. 3-15).                             Figure 4-8.  Rocker Arm ID