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

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.

Illustration 1	g02795978

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

Illustration 2	g02798975

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

Illustration 3	g02796757

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

3. Remove bolts (3) .

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

5. 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 4	g02880896

6. Remove the camshaft cover (4) .

Installation Procedure

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

   Illustration 5	g02881018

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

   Illustration 6	g02881076

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

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