G3516B and G3520B Generator Set Engines Caterpillar


Cylinder Head - Assemble

Usage:

G3516B 7EZ

Assembly Procedure

Valve Lifters


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 1g01051073

  1. Install guide spring (10) in the valve lifter.


    Illustration 2g01354290

  2. Place valve lifter (9) in a container of clean engine oil prior to installation.

  3. Install valve lifter (9) in the cylinder head.

    Note: Refer to the Specifications Module, "Valve Rocker Arms, Lifters, and Bridges" for additional information.

Inlet and Exhaust Valve Guides

Table 1
Required Tools 
Tool   Part Number  Part Description  Qty 
E  5P-1729  Valve Guide Bushing 


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 3g01354132

  1. Place clean engine oil on the outside of the valve guides prior to installation.

  2. Use Tooling (E) to install the valve guides. The valve guide should extend 26.00 ± 0.50 mm (1.024 ± 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 


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 4g01354361

  1. Cool the valve seat inserts (11). Install valve seat inserts with Tooling (F).

Valve Train

Table 3
Required Tools 
Tool   Part Number  Part Description  Qty 
G  6V-4009  Dowel Driver 


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 5g01051069

  1. Use Tooling (G) to install bridge dowels (1). The bridge dowels must extend 66.5 ± 0.5 mm (2.62 ± 0.02 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 


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 6g00618922

    ------ WARNING! ------

    Personal injury can result from parts and/or covers under spring pressure.

    Spring force will be released when covers are removed.

    Be prepared to hold spring loaded covers as the bolts are loosened.


  1. Place clean engine oil on the valves (7) and install valves (7) in the cylinder head.

  2. Install seal (6), inner spring (4), outer spring (5), and valve rotator (3) on the valve stem and the valve guide.

  3. Compress the valve spring with Tool (A) and install retainer lock (2).

    ------ WARNING! ------

    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.


  4. Remove Tool (A) and lightly tap the top of the valves with a hammer. This will ensure that the retainer locks are in the proper position.

  5. Repeat Steps 1 through 4 for the remaining valves.

End By:

  1. Install the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Install".

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