3508C, 3512C and 3516C Marine Engines Inlet and Exhaust Valve Guides - Remove and Install Caterpillar


Inlet and Exhaust Valve Guides - 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 
7M-3975  Valve Guide Driver 

Start By:

  1. Remove the inlet valves and the exhaust valves. Refer to Disassembly and Assembly, "Inlet and Exhaust Valves - Remove and Install".


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 1g01133624

  1. Remove valve stem seal (3) from inlet valve guide (2).

    Note: The valve stem seal is not installed on exhaust valve guide (1).

  2. Turn the cylinder head upside-down. Use Tooling (A) and a hammer to remove the valve guides from the cylinder head.

Installation Procedure

Table 2
Required Tools 
Tool   Part Number  Part Description  Qty 
7M-3975  Valve Guide Driver 
5P-1729  Valve Guide Bushing 

Note: If you replace the valve guides, you must replace the valve seats with new valve seats.

Note: Inspect the valve guides. Do not use valve guides with obvious damage or with excessive wear. Check available specifications. Remove valve guides that are loose or damaged. Replace the valve guides with new components, if necessary. Correct any condition that could cause the original damage or wear.


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


    Note: Use new valve guides for assembly.



    Illustration 2g01133624

  1. Coat the outside of the valve guide with clean engine oil prior to installation.

  2. Use Tooling (A) and Tooling (B) to install exhaust valve guide (1) and inlet valve guide (2) in the cylinder head.

  3. Install new valve stem seal (3) on inlet valve guide (2).

    Note: Valve stem seals are not installed on exhaust valve guide (1).

End By:

  1. Install the inlet valves and the exhaust valves. Refer to Disassembly and Assembly, "Inlet and Exhaust Valves - Remove and Install".

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