Chevrolet Silverado / GMC Sierra. Service manual — part 358

8. Install the connecting rod bearings to the rod and cap.

CAMSHAFT BEARING REMOVAL

Tools Required

J 33049 Camshaft Bearing Service Set. See Special Tools.

Fig. 442: Camshaft Bearings
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: A loose camshaft bearing may be caused by an enlarged, out

of round, or damaged engine block bearing bore.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

1. Prior to bearing removal, inspect the camshaft bearings for loose fit in the engine block

bearing bores. Refer to Camshaft and Bearings Cleaning and Inspection.

2. Repair or replace the components, as required.

Fig. 443: View Of J 33049 Camshaft Bearing Service Kit Components

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Courtesy of GENERAL MOTORS CORP.

3. Select the expanding driver (4-8) and washer (2 or 3) from the J 33049 . See Special

Tools.

4. Assemble the tool.

5. Insert the tool through the front of the engine block and into the bearing.

6. Tighten the expander assembly (15) nut until snug.

7. Push the guide cone (1) into the front camshaft bearing in order to align the tool.

Fig. 444: Driving Bearing Out Of Or Into Engine Block
Courtesy of GENERAL MOTORS CORP.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

8. Drive the bearing from the block bore.

9. Repeat the above procedures in order to remove the remaining bearings.

Tool Usage Information

Bearing, Expander, and Expander Driver Information

IMPORTANT: In order to remove the front camshaft bearing, operate the

tool from the rear of the block, using the guide cone in the
rear camshaft bearing bore.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2