C6.6 Engines for Caterpillar Built Machines Rocker Shaft - Disassemble Caterpillar


Rocker Shaft - Disassemble
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1.1. Disassembly Procedure

Disassembly Procedure

Start By:

  1. Remove the rocker shaft assembly. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Remove".


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


------ WARNING! ------

Personal injury can result from being struck by parts propelled by a released spring force.

Make sure to wear all necessary protective equipment.

Follow the recommended procedure and use all recommended tooling to release the spring force.


  1. Make an identification mark on each rocker arm assembly in order to show the location.

    Note: The components must be reinstalled in the original location. Do not interchange components.



    Illustration 1g01417114

  2. Remove pedestals (1) from rocker shaft (5). It is not necessary to remove locators (2) from the pedestals.

  3. Remove rocker arm assembly (4) for the exhaust valve from rocker shaft (5). Remove rocker arm assembly (3) for the inlet valve from rocker shaft (5). Begin at the rear of the rocker shaft assembly.

    Note: The rocker arm assembly for the inlet valve is longer than the rocker arm assembly for the exhaust valve.

  4. Remove spring (6) from rocker shaft (5).

  5. Repeat Steps 3 and 4 in order to remove the remaining rocker arms from rocker shaft (5).


    Illustration 2g01340048

  6. If necessary, remove retaining clip (7) and remove spring (8) from the front end of rocker shaft (5).

  7. If necessary, remove nuts (10) and adjusters (9) from the rocker arms. Make a temporary identification mark on each adjuster in order to show the location.

    Note: The components must be reinstalled in the original location. Do not interchange components.

Information System:

C6.6 Engines for Caterpillar Built Machines Rocker Shaft and Pushrod - Remove
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C6.6 Engines for Caterpillar Built Machines Valve Mechanism Cover - Remove and Install
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C6.6 Engines for Caterpillar Built Machines Crankcase Breather - Install - Unfiltered Breather
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C6.6 Engines for Caterpillar Built Machines Crankcase Breather - Remove - Unfiltered Breather
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C6.6 Engines for Caterpillar Built Machines Housing (Front) - Install
C6.6 Engines for Caterpillar Built Machines Housing (Front) - Remove
C6.6 Engines for Caterpillar Built Machines Rocker Shaft - Assemble
C6.6 Engines for Caterpillar Built Machines Rocker Shaft and Pushrod - Install
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