STUD 1634197 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 166-7441 Valve Seat Extractor Tool 1 Start By:
Remove the inlet and exhaust valves.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01954537
Use Tooling (A) in order to remove the inlet and exhaust valve seat inserts (1) from the cylinder head.
Clean the valve seats in the cylinder head. Remove any rough areas from the valve seats in the cylinder head.
Repeat Step 1 and Step 2 for the remaining inlet and exhaust valve seat inserts. Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A 166-7441 Valve Seat Extractor Tool 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 2 g01954537
Lower the temperature of the new inlet and exhaust valve seat inserts. Use Tooling (A) in order to install the new inlet and exhaust valve seat inserts (1) in the cylinder head. Note: Do not increase the diameter of the extractor in the valve seat insert when the valve seat inserts are installed in the cylinder head.
Repeat Step 1 for the remaining inlet and exhaust valve seat inserts. End By:
Install the inlet and exhaust valves.