3176C and 3196 Marine Engines Caterpillar


Inlet and Exhaust Valve Springs - Remove and Install

Usage:

3196 2XR

Removal Procedure

Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     4C-6726     Valve Spring Compressor     1    

Start By:

  1. Remove the valve mechanism cover, the electronic unit injector, the rocker shaft and the push rods.


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 dead center position in the cylinder.



    Illustration 1g00526801

    Typical Example

  1. Place the bottom portion of Tool (A) on the cylinder head. Install the hold down bolt (1) .



    Illustration 2g00526802

    Typical Example

  1. Install the remainder of Tool (A) .



    Illustration 3g00526803

    Typical Example

  1. Tighten the nut on Tool (A) in order to compress the inlet valve springs and the exhaust valve springs (2) .

  1. Remove retainer locks (3) .

  1. Remove Tool (A) .



    Illustration 4g00526804

    Typical Example

  1. Remove valve rotators (4) .

  1. Remove the inlet valve springs and the exhaust valve springs (5) from each valve.



    Illustration 5g00526805

    Typical Example

  1. Remove bases (6) from the cylinder head.

  1. 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    
A     4C-6726     Valve Spring Compressor     1    


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


Note: Ensure that the piston is at the top dead center position in order to install the inlet valve springs and the exhaust valve springs.




    Illustration 6g00526805

    Typical Example

  1. Install bases (6) for the inlet valve springs and the exhaust valve springs.



    Illustration 7g00526804

    Typical Example

  1. Install the inlet valve springs and the exhaust valve springs (5) .

  1. Install valve rotators (4) .



    Illustration 8g00526803

    Typical Example

  1. Install Tool (A) .

  1. Tighten the nut on Tool (A) in order to compress the inlet valve springs and the exhaust valve springs (2) .

  1. Install retainer locks (3) .

  1. Remove Tool (A) .

End By: Install the push rods, the rocker shaft, the electronic unit injector, and the valve mechanism cover.

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