3500 Engines Inlet and Exhaust Valve Seat Inserts - Remove and Install Caterpillar


Inlet and Exhaust Valve Seat Inserts - 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 
166-7441  Valve Seat Extractor Tool 

Start By:

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

Note: For information on the reusability of valve seats, refer to Guideline For Reusable Parts And Salvage Operation, SEBF8155.


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 1g01133493

  1. Use Tooling (A) to remove valve seat inserts (2) from cylinder head (1).

  2. Thoroughly clean the valve seat bores in the cylinder head.

Installation Procedure

Table 2
Required Tools 
Tool  Part Number  Part Description  Qty 
1P-0510  Driver Gp 

Note: Do not machine the prefinished valve seat inserts in order to correct the valve stem projection. An excessive valve stem projection indicates that the valve seat insert is not seated or material was not cleaned from the bottom of the counterbore.

Note: If the valve seats are replaced, you must replace the valve guides.


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 2g01133494

  1. Lower the temperature of valve seat inserts (2).

  2. Use Tooling (B) to install valve seat inserts (2) in cylinder head (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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