SLEEVE 7W3872 - Caterpillar

Assembly Procedure
Valve Lifters
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01051073
Illustration 2 g01051072
Improper assembly of parts that are spring loaded can cause bodily injury.To prevent possible injury, follow the established assembly procedure and wear protective equipment.
Note: Install the lifter assembly into the cylinder head. Ensure that the word "LEFT" stamped on end of the bronze pin is always oriented to the LEFT as viewed from the side of the engine regardless of left side or right side bank. Immerse the lifter assembly in engine oil before assembled in the cylinder head lifter bore.
Install new guide spring (10) for valve lifter (9).
Place valve lifter (9) in a container of clean engine oil prior to installation.
Install valve lifter (9) into the cylinder head.Note: Refer to Specifications, "Valve Mechanism".Inlet and Exhaust Valve Guides
Table 1
Required Tools
Tool Part Number Part Description Qty
E 7M-3975 Valve Guide Driver 1
5P-1729 Valve Guide Bushing 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: Use new valve guides for assembly.
Coat the outside of the valve guides with clean engine oil prior to installation.
Use Tooling (E) and a suitable press to install the valve guides. The valve guide must extend 26.0 0.50 mm (1.02 0.020 inch) above the surface of the cylinder head.Inlet and Exhaust Valve Seat Inserts
Table 2
Required Tools
Tool Part Number Part Description Qty
F 1P-0510 Driver Gp 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: Use new inserts for assembly.
Lower the temperature of the valve seat inserts. Install the valve seat inserts with Tooling (F).Bridge Dowels
Table 3
Required Tools
Tool Part Number Part Description Qty
G 6V-4009 Dowel Driver 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 3 g01051069Note: Use new dowels for assembly. Refer to Service Magazine, SEPD1825, "New Cylinder Head Groups and Valve Mechanisms" for the correct procedure.
Use Tooling (G) with a hammer to install bridge dowels (8). The bridge dowels must extend 66.5 0.50 mm (2.62 0.020 inch) above the surface of the cylinder head.Inlet and Exhaust Valves
Table 4
Required Tools
Tool Part Number Part Description Qty
A 5S-1330 Valve Spring Compressor 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 4 g00618922
If the valve locks are not positioned correctly, the locks can be expelled when the spring pressure is released.To help prevent personal injury, stay away from the front of the valve retainer and springs. Ensure that the valve locks are positioned correctly.
Note: Do not reuse valve rotocoils.
Coat valves (7) with clean engine oil. Install the valves into the cylinder head.
Install seal (6), inner spring (4), outer spring (5), and valve rotocoil (3) over the valve stem and the valve guide.
Compress the valve spring with Tooling (A) and install retainer lock (2).
Release the pressure on Tooling (A). Remove Tooling (A). Lightly tap the top of the valve with a hammer tol ensure that the retainer locks are in the proper position.
Repeat Steps