C3.3B Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines – Camshaft and Valve Lifters – Remove and Install – C3.3B

Removal Procedure

Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     -     Magnets     8    
B     390-1149     Driver     1    

Start By:

  1. Remove the rocker shaft and pushrods.
  2. Remove the flywheel housing.
  3. Remove the oil pan. (Only necessary if valve lifters will be removed.)

Note: Refer to Specification UENR0995 "Engine Design" for non-specified engine Torque Values.


Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.

    Illustration 1g02795978

  1. Ensure that Timing Marks (Y) on the idler gear and the camshaft gear are aligned. Refer to illustration 1.

    Illustration 2g02798975

  1. Use Tooling (A) to hold up the valve lifters (1) in order to remove the camshaft.

    Illustration 3g02796757


    Do not damage the lobes or the bearings when the camshaft is removed or installed.

  1. Remove bolts (3) .

  1. Carefully remove camshaft (2) from the cylinder block.

  1. Remove Tooling (A) . Use a suitable container to catch the valve lifters (1) as the valve lifters (1) slide out the bottom of the cylinder block.

    Illustration 4g02880896

  1. Remove the camshaft cover (4) .

Installation Procedure

  1. Install camshaft (1) in the reverse order of removal.

      Illustration 5g02881018

    1. Place camshaft cover (4) on Tooling (B) .

      Illustration 6g02881076

    1. Use Tooling (B) to install the camshaft cover (4) .

    1. Tighten bolts (3) to a torque of 24.0 ± 27.0 N·m (17.70 ± 19.91 lb ft).

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