COUPLING-NPT 4186463 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 9U-7349 Valve Guide Driver 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 g01954473
Use Tooling (A) to remove the inlet and exhaust valve guides (1) from the cylinder head.
Repeat Step 1 for the remaining inlet and exhaust valve guides. Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A 9U-7349 Valve Guide Driver 1
B 9U-6954 Valve Guide Collar 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 2 g01954473
Apply clean engine oil to the outside diameter of the inlet and exhaust valve guides. Install the inlet and exhaust valve guides (1) with Tooling (A) and Tooling (B).
Illustration 3 g00508601
Dimension (X) from the top of the valve guide to the cylinder head must be 16.66 mm (0.656 inch). For more information on the inlet and exhaust valve guides, refer to Specifications, "Cylinder Head Valves". Note: In order to help prevent damage to the valve guides, Tooling (B) must be used during installation.
Repeat Step 1 and Step 2 for the remaining inlet and exhaust valve guides. End By:
Install the inlet and exhaust valves.