C15 On-highway Engine Caterpillar


Inlet and Exhaust Valve Seat Inserts - Remove and Install

Usage:

C15 BXS

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
A  166-7441  Valve Seat Extractor Tool Group 

Start By:

  1. Remove the inlet and 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 1g01014574

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

  2. Clean the bores in the cylinder head for the valve seat inserts. Remove any rough areas from the bores.

Installation Procedure

Table 2
Required Tools 
Tool  Part Number  Part Description  Qty 
B(1)  9U-6898  Valve Seat Driver (Exhaust) 
9U-6897 Valve Seat Driver (Inlet) 
(1) Part of 9U-7530 Engine Tool Group


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 2g01014573


    Illustration 3g01014575

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

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

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

End By:

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