PUMP GP-PISTON 2143243 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     367-3070     Fuel Injector Installer and Removal Tooling     1    
B     274-9198     Leg     2    
C     -     1/2 inch drive breaker bar     1    Start By:
Remove the valve mechanism cover. Refer to Disassembly and Assembly, "Valve Mechanism Cover - Remove and Install".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g03007076
Drain the coolant, oil, and fuel from the cylinder head. Remove the oil galley plug (1), fuel galley plug (2), and coolant line (3) .
Illustration 2 g03007480
Disconnect harness assembly (4) .
Remove socket head bolts (6) from unit injector (5), and remove rocker shaft bolt (7) .
Illustration 3 g03029497
Install Tooling (A). Use Tooling (A) to remove unit Injector (5) .Note: Do not use a wire brush on the tip of the unit injector. Damage to the unit injector will occur.
Illustration 4 g03009616
Remove O-ring seal (10), O-ring seal (11), and O-ring seal (12) from unit injector (5) .
Remove backup ring (8), backup ring (9), and backup ring (13) .