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TM 9-4110-257-14
5-42. CYLINDER HEAD TESTING, REPLACEMENT, AND ADJUSTMENT. - Continued
(10) Torque nut (19) and seven nuts (21) in increments of 13 ft LB (18 Nm) each in the order shown until 53 ft LB
(83 Nm) is reached.
(11) Tighten four screws (12).
(12) Install hose (10) onto intake manifold (11) and secure with clamp (9).
(13) Install two new gaskets (8), exhaust manifold (7), four flat washers (6) and screws (5).
(14) Install hook (17) as noted during removal, flat washer (16), and nut (15).
(15) Install two screws (4).
(16) Align gate (33) mounting holes and install bracket (3), two flat washers (2) and bolts (1).
c. Adjustment.
CAUTION
Engine must be cooled down to ambient temperature before adjusting.
(1) If covers (34) are installed, remove six screws (35), two covers, and gaskets (36). Discard gaskets.
NOTE
Rocker arm to valve stem clearance must be adjusted for each cylinder independently with the
piston at the compression top dead center position.
(2) Press on both rocker adjusting screws (18) while rotating engine flywheel (37) clockwise until both rocker arms (38)
are up off valve stems (39) and the reference mark (40) on shroud (41) is aligned with the piston top dead center point
(42) (third/last dot) punched onto the flywheel (37).
(3) Using valve adjustment tool, adjust each rocker arm (38) for a clearance to the valve stem (39) of 0.006 in. (0.15
mm).
(4) Repeat the above procedures for the second cylinder.
(5) Install two new gaskets (36), covers (34), and six screws (35).
NOTE
FOLLOW-ON MAINTENANCE:
Install engine (para 5-46).
Install fuel supply tube onto nozzle (para 4-59).
Install fuel return hose onto nozzle (para 4-60).
5-98
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