C6.6 Engines for Caterpillar Built Machines Valve Mechanism Cover Base - Remove and Install Caterpillar


Valve Mechanism Cover Base - Remove and Install
`
1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
1P-1860  Retaining Ring Pliers 

Start By:

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

  2. Remove the fuel injection lines. Refer to Disassembly and Assembly, "Fuel Injection Lines - Remove".


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




Illustration 1g01342484

  1. Place a temporary identification mark on connections (1) for harness assembly (4).

  2. Use a deep socket to remove connections (1) from electronic unit injectors (2).

  3. If necessary, follow steps 3.a through 3.f in order to remove harness assemblies (4) from valve mechanism cover base (7).

    1. Cut cable strap (3).

    2. Disconnect plug (6) from harness assembly (4).

    3. Use Tooling (A) to remove circlip (5).

    4. From the outside of valve mechanism cover base (7), push harness assembly (4) inward. Withdraw the harness assembly from valve mechanism cover base (7).

    5. Remove O-ring seal (8) from harness assembly (4).

    6. Repeat steps 3.b through 3.e in order to remove the remaining harness assemblies.


    Illustration 2g01342485


    Illustration 3g01342487

  4. Loosen isolated screws (9) in reverse numerical order. Refer to illustration 3. This will help prevent distortion of valve mechanism cover base (6).

  5. Remove valve mechanism cover base (7) from the cylinder head.

  6. Remove isolated screws (9) from valve mechanism cover base (7).

  7. Remove seal (10) from valve mechanism cover base (7).

Installation Procedure

Table 2
Required Tools 
Tool  Part Number  Part Description  Qty 
1P-1860  Retaining Ring Pliers 
1U-6396  O-Ring Assembly Compound 
247-5377  Torque wrench 


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


  1. Clean the valve mechanism cover base. Ensure that the mating surfaces are free from damage.


    Illustration 4g01342485

  2. Install seal (10) to valve mechanism cover base (7). Ensure that seal (10) is seated correctly in the groove in the machined face of valve mechanism cover base (7).

  3. Install isolated screws (9) to valve mechanism cover base (6).


    Illustration 5g01342487

  4. Position valve mechanism cover base (7) on the cylinder head. Tighten isolated screws (9) to a torque of 9 N·m (79 lb in) in the sequence that is shown in illustration 5.


    Illustration 6g01342484

  5. If necessary, install the harness assemblies for the electronic unit injectors. Follow steps 5.a through 5.h in order to install the harness assemblies for the electronic unit injectors.

    1. Ensure that harness assembly (4) and the bore in valve mechanism cover base (7) are clean and free from damage. Replace any damaged components.

    2. Use Tooling (B) to lubricate a new O-ring seal (8). Install the new O-ring seal (8) onto harness assembly (4).

    3. From the inside of valve mechanism cover base (7), push harness assembly (4) into valve mechanism cover base (7).

    4. Use Tooling (A) to install circlip (5).

    5. Connect plug (6) to harness assembly (4).

    6. Use a deep socket to connect harness (4) to electronic unit injectors (2). Use Tooling (C) to tighten connectors (1) to a torque of 2.4 N·m (21 lb in).

    7. Install a new cable strap (3) to harness assembly (4).

      Note: Ensure that cable strap to OE specification.

    8. Repeat steps 5.a through 5.g for remaining harness assemblies (4).

End By:

  1. Install new fuel injection lines. Refer to Disassembly and Assembly, "Fuel Injection Lines - Install".

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

Information System:

C6.6 Engines for Caterpillar Built Machines Valve Mechanism Cover - Remove and Install
C6.6 Engines for Caterpillar Built Machines Valve Mechanism Cover Base - Remove and Install - Composite Valve Mechanism Cover Base
C6.6 Engines for Caterpillar Built Machines Valve Mechanism Cover - Remove and Install - Composite Valve Mechanism Cover
C6.6 Engines for Caterpillar Built Machines Crankcase Breather - Install - Filtered Breather
C6.6 Engines for Caterpillar Built Machines Crankcase Breather - Install - Unfiltered Breather
C6.6 Engines for Caterpillar Built Machines Crankcase Breather - Remove - Filtered Breather
C6.6 Engines for Caterpillar Built Machines Crankcase Breather - Remove - Unfiltered Breather
C6.6 Engines for Caterpillar Built Machines Accessory Drive - Remove and Install
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 Idler Gear - Install
C6.6 Engines for Caterpillar Built Machines Idler Gear - Remove
C6.6 Engines for Caterpillar Built Machines Rocker Shaft and Pushrod - Remove
C6.6 Engines for Caterpillar Built Machines Rocker Shaft - Disassemble
C6.6 Engines for Caterpillar Built Machines Rocker Shaft - Assemble
C6.6 Engines for Caterpillar Built Machines Rocker Shaft and Pushrod - Install
C6.6 Engines for Caterpillar Built Machines Cylinder Head - Remove
C6.6 Engines for Caterpillar Built Machines Cylinder Head - Install
C6.6 Engines for Caterpillar Built Machines Lifter Group - Remove and Install
C6.6 Engines for Caterpillar Built Machines Camshaft - Remove and Install
C6.6 Engines for Caterpillar Built Machines Camshaft Gear - Remove and Install
C6.6 Engines for Caterpillar Built Machines Camshaft Bearings - Remove and Install
C6.6 Engines for Caterpillar Built Machines Engine Oil Pan - Remove - Cast Iron Oil Pan
C6.6 Engines for Caterpillar Built Machines Engine Oil Pan - Remove - Aluminum Oil Pan