C0.5, C0.7, C1.1/3011C, C1.5/3013C, C1.6 and C2.2/3024C/3024CT Industrial Engines and Engines for Caterpillar Built Machines Inlet and Exhaust Valves - Remove and Install Caterpillar


Inlet and Exhaust Valves - Remove and Install
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1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
A  9U-6195  Valve Spring Compressor 

Start By:

  1. Remove the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Remove".


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


Note: The removal procedure is identical for the two cylinder, the three cylinder and the four cylinder engines. The illustrations show the four cylinder engine.

  1. Clean the bottom face of the cylinder head. Check the depth of the valves below the face of the cylinder head before the valve springs are removed. Refer to Specifications, "Cylinder Head Valves" for the correct dimensions.

  2. Place an identification mark on the heads of the valves for installation purposes.

    Note: The head of the inlet valve has a larger diameter than the head of the exhaust valve.

  3. Position the cylinder head on a suitable surface with the valve springs facing upward.

    Note: Ensure that the machined face of the cylinder head is kept on a clean, soft surface in order to prevent damage to the machined surface.

    ------ 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.




    Illustration 1g01129177
    Typical example

  4. Install tool (A) in position on the cylinder head in order to compress the appropriate valve spring (3).


    NOTICE

    Ensure that the valve spring is compressed squarely or damage to the valve stem may occur.


  5. Apply pressure to tool (A). Remove the valve keepers (1).

  6. Slowly release the pressure on tool (A).


    Illustration 2g01129220
    Typical example

  7. Remove the valve spring retainer (2).

  8. Remove valve spring (3).

  9. Repeat steps 4 to 8 for the remaining valves.

  10. Remove tool (A).

  11. Remove the valve stem seals (4).

  12. Carefully turn over the cylinder head.

  13. Remove the valves (5).

Installation Procedure

Table 2
Required Tools 
Tool  Part Number  Part Description  Qty 
A  9U-6195  Valve Spring Compressor 


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


Note: The installation procedure is identical for the two cylinder, the three cylinder and the four cylinder engines. The illustrations show the four cylinder engine.

  1. Clean all parts. Ensure that all ports, all coolant passages and all lubrication passages are free from debris. To inspect the cylinder head, refer to Testing and Adjusting, "Cylinder Head Inspect" for further information.

  2. Inspect all of the valve seats for wear and for damage. Refer to Specifications, "Cylinder Head Valves" and refer to Testing and Adjusting, "Valve Depth - Inspect " for further information.

  3. Inspect all of the valve guides for wear and for damage. Refer to Specifications, "Cylinder Head Valves" and refer to Testing and Adjusting , "Valve Guide - Inspect" for further information.


    Illustration 3g01129220
    Typical example

  4. Lubricate the stems of all valves (5) with clean engine oil. Install the valves (5) in the appropriate positions.

  5. Carefully turn over the cylinder head and ensure that all of the valves remain in place.

  6. Use a suitable tool to install the new valve stem seals (4) onto each of the valve guides.

    Note: The outer face of the valve guides must be clean and dry before installing the valve stem seals (4). The inlet valve stem and the exhaust valve stem use seals that are different parts.

  7. Inspect the valve springs (3) for wear and for the correct installed length. Refer to Specifications, "Cylinder Head Valves " for further information.

  8. Install the valve spring (3) onto the cylinder head.

  9. Install the valve spring retainer (2).

    ------ 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.




    Illustration 4g00825742
    Typical example

  10. Install tool (A) in position on the cylinder head in order to compress the appropriate valve spring (3).


    NOTICE

    Ensure that the valve spring is compressed squarely or damage to the valve stem may occur.


  11. Apply pressure to tool (A). Install the valve keepers (1).

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

    The valve keepers can be thrown from the valve when the valve spring compressor is released. Ensure that the valve keepers are properly installed on the valve stem. To help prevent personal injury, keep away from the front of the valve keepers and valve springs during the installation of the valves.


  12. Carefully release the pressure on tool (A).

  13. Repeat steps 8 to 12 for all of the valves.

  14. Remove tool (A) from the cylinder head.

  15. Place the cylinder head on a suitable support. Ensure that the heads of the valves are not obstructed. Gently strike the top of the valves with a soft hammer in order to ensure that the valve keepers (1) are properly installed.

  16. Turn over the cylinder head and check the depth of the valves below the face of the cylinder head. Refer to Specifications, "Cylinder Head Valves" for more information.

End By:

  1. Install the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Install".

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