PLUG 2070418 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     1U-7793     Valve Guide Driver     1    
B     9U-6895     Valve Guide Driver     1    Start By:
Remove the inlet and exhaust valves. Refer to Disassembly and Assembly, "Inlet and Exhaust Valves - Remove and Install".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01124395
Use Tooling (A) to remove the inlet valve guides from the cylinder head assembly. Use Tooling (B) to remove the exhaust valve guides from the cylinder head assembly.Installation Procedure
Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
A     1U-7793     Valve Guide Driver     1    
B     9U-6895     Valve Guide Driver     1    
C     1U-7792     Guide Collar     1    
D     149-4008     Guide Collar     1    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 2 g01124397
Note: Position the valve guides and tap on the top of the valve guides in order to start the valve guides into the cylinder head assembly.
Use Tooling (A) and Tooling (C) to install inlet valve guides (1) . Install inlet valve guides (1) until the protrusion is 23.0 0.50 mm (0.90 0.020 inch) above the cylinder head assembly.
Use Tooling (B) and Tooling (D) to install the exhaust valve guides. Install the exhaust valve guides until the protrusion is 24.05 0.5 mm (1.0 0.02 inch) above the cylinder head assembly.End By: Install the inlet and exhaust valves. Refer to Disassembly and Assembly, "Inlet and Exhaust Valves - Remove and Install".