NorAM 65E Turbo, Operator'S Manual

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1
NORAM 65ET GRADER
3-22
Lubrication and Maintenance
3
2. See illustration 3. Rotate the crankshaft clockwise until the piston of No. 1 cylinder is at the top center position on
the compression stroke. The exhaust valves and the inlet valves of No. 4 cylinder are in valve overlap. Measure the
valve lash on the pair of exhaust valves (1) and the pair of inlet valves (2) of No. 1 cylinder. If necessary, adjust the
valve lash to the settings in Table 1.
a. See illustration 2. Loosen the valve adjustment locknut that is on the adjustment screw (1).
b. Place Tooling (A) between the rocker arm and the valve. Turn the adjustment screw (1) while the valve
adjustment screw locknut (2) is prevented from turning. Adjust the valve lash until the correct specification is
achieved.
c. After each adjustment, tighten the valve adjustment screw locknut to 21.5 to 32.5 N*m (15.9 to 24 lb ft) while
the valve adjustment screw (1) is held in position.
3. Rotate the crankshaft by 180 degrees in the direction of engine rotation, until the piston of No. 3 cylinder is at the
top center position on the compression stroke. The exhaust valves and the inlet valves of No. 2 cylinder are in valve
overlap. Adjust the valve lash for both the inlet valves (5) and the exhaust valves (6) of No. 3 cylinder. Complete the
sequence of checks according to table 2 until all the cylinders have been checked or adjusted. Reinstall the valve
mechanism cover. Refer to the Cat Engine Manual, Disassembly and Assembly, “Valve Mechanism Cover - Remove
and Install” for the installation procedure.
See Cat Engine Manual for complete instructions. Or contact your local Cat Service Center.
Table 2