SEAL AS 2504002 - Caterpillar

Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
B - Scotch Brite 1
C 1U-5718 Vacuum Pump 1
169-7372 Bottle Assembly 1
4C-4057 Clear Plastic Tubing
7.92 mm (0.312 inch) OD 1
4C-4055 Clear Plastic Tubing
6.35 mm (0.250 inch) OD
D 457-1623 Reamer 1
E 4C-6161 Tube Brush 1
F 9U-6862 Tapered Brush 1
G 4C-6774 Vacuum Gun Kit 1
H 4C-5027 Tap Wrench 1
J 276-7018 Plug/Cap Kit 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Evacuate as much fuel and oil as possible from the cylinder head before installing the unit injector. Several evacuations may be necessary. Use Tooling (C) to remove the fuel and oil from the cylinder.Note: Tooling (F) is available to clean loose material from the sleeve bore and the cylinder.
Clean the carbon from the sleeve, the sleeve bore, and the end of the unit injector. Clean the carbon from the seat area that is inside the cylinder head. A fine grade of Tooling (B) is preferred. Clean the carbon from the cylinder head. If the sleeve of the unit injector has been removed, use Tooling (D) to remove only carbon from the surface of the sleeve. If the sleeve of the unit injector is installed, use Tooling (E) to clean the carbon deposit from the inside of the sleeve.The following procedure is the preferred method of cleaning the sleeve bore.Place a 38 mm (1.5 inch) square piece of Scotch Brite material on the end of Tooling (F). Twist Tooling (F) with Tooling (H) against the lower surface of the sleeve bore.The surface should be cleaned until the surface is smooth and shiny. The entire sleeve bore should be cleaned to remove any loose carbon particles.Note: Tooling (G) is available to clean loose material from the sleeve bore and the cylinder.