C9 Petroleum Engines Caterpillar


Inlet and Exhaust Valve Springs - Remove and Install

Usage:

C9 KLW

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
176-5487  Valve Spring Compressor 

Start By:

  1. Remove the rocker arm and shaft. Refer to Disassembly and Assembly, "Rocker Arm and Shaft - Remove".

  2. Remove the electronic unit injector. Refer to Disassembly and Assembly, "Electronic Unit Injector - Remove".


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


Note: The following procedure is for the removal of the inlet valve springs and the exhaust valve springs without removing the cylinder head. This procedure can be performed on only one cylinder at a time. This will prevent the inlet valves and the exhaust valves from falling into the cylinder.

  1. Rotate the crankshaft in order to bring the piston to the top center position in the cylinder.


    Illustration 1g01167733

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

    Personal injury can result from being struck by parts propelled by a released spring force.

    Make sure to wear all necessary protective equipment.

    Follow the recommended procedure and use all recommended tooling to release the spring force.


  2. Use Tooling (A) in order to compress the inlet valve springs and the exhaust valve springs.

  3. Remove retainer locks (2).

  4. Remove Tooling (A).

  5. Remove spring retainer (3).

  6. Remove inner valve spring (4) and outer valve spring (5) from each valve (1). Remove the valve spring seats from the cylinder head.

  7. Install the inlet valve springs and the exhaust valve springs before you rotate the crankshaft.

Installation Procedure

Table 2
Required Tools 
Tool  Part Number  Part Description  Qty 
176-5487  Valve Spring Compressor 


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


  1. Install the valve spring seats for the inlet valve springs and the exhaust valve springs.


    Illustration 2g01167733

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

    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.


  2. Install inner valve spring (4) and outer valve spring (5) on each valve (1).

  3. Install spring retainer (3).

  4. Use Tooling (A) in order to compress the inlet valve springs and the exhaust valve springs.

  5. Install retainer locks (2).

End By:

  1. Install the electronic unit injector. Refer to Disassembly and Assembly, "Electronic Unit Injector - Install".

  2. Install the rocker arm and shaft. Refer to Disassembly and Assembly, "Rocker Arm and Shaft - Install".

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