3044C Industrial Engine and Engines for Caterpillar Built Machines Caterpillar


Rocker Shaft and Pushrod - Install

Usage:

3044C 344

Installation Procedure


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.





    Illustration 1g01035051

  1. Install pushrods (5) .

    Note: Ensure that the pushrods are installed in the original location and that the pushrods are seated in the valve lifters correctly.




    Illustration 2g01035049

  1. Loosen the nut and adjustment screw (1) on each rocker arm to prevent bending a valve or a pushrod during the installation.

  1. Position rocker shaft assembly (3) .

  1. Install bolts (2) and tighten to a torque of 10 to 20 N·m (89 to 177 lb in).

  1. Install bolts (4) and tighten to a torque of 10 to 20 N·m (89 to 177 lb in).

  1. Final torque for the nut on adjustment screw (1) is 20 N·m (177 lb in)

  1. Adjust the inlet valve lash and the exhaust valve lash to 0.250 mm (0.0098 inch). Refer to Testing and Adjusting, "Engine Valve Lash - Inspect/Adjust".

End By: Install the valve mechanism cover. Refer to Disassembly and Assembly, "Valve Mechanism Cover - Remove and Install".

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