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Fig. 445: View Of J 33049 Camshaft Bearing Service Kit Components The tool consists of a guide cone (1), driving washers (2 or 3), expander bearing drivers (4-
2008 Hummer H2 2008 ENGINE Engine Mechanical - 6.2L - H2
Expander bearing driver number 1 inside diameter is 28.575-37.465 mm (1.125-1.475 in) Expander bearing driver number 2 inside diameter is 37.465-43.18 mm (1.475-1.7 in) and is Expander bearing driver number 3 inside diameter is 43.18-48.895 mm (1.7-1.925 in) and is Expander bearing driver number 4 inside diameter is 48.895-54.61 mm (1.925-2.15 in) and Expander bearing driver number 5 inside diameter is 54.61-60.325 mm (2.150-2.375 in) Expander bearing driver number 6 inside diameter is 60.325-68.326 mm (2.375-2.69 in) Tool Assembly and Operation 1. Select the proper expanding driver and washer from the expanding driver and washer information. 2. Place the expanding driver onto the expander assembly. 3. Ensure the separation lines between the segments of the expanding driver align with the separation lines of the expander assembly. 4. With the small end of the cone facing the driver assembly, place the guide cone over the driving bar. 5. Place the driving washer over the threaded portion of the expander assembly. 6. Screw the expander assembly, with driving washer, onto the driving bar. For removal of the inner bearings, it may be necessary to install the driver bar extension. IMPORTANT: To install or remove the expanding driver, always push on or pull from the ends.
2008 Hummer H2 2008 ENGINE Engine Mechanical - 6.2L - H2
Fig. 446: Driving Bearing Out Of Or Into Engine Block 7. Insert the tool into an inner camshaft bearing and tighten until snug. Operate the tool from the front or rear of the engine block. On some engine blocks, the nut on the expander assembly is inaccessible, except from either 8. Slide the nylon cone (2) into the front or rear camshaft bearing. This will properly align the tool.
2008 Hummer H2 2008 ENGINE Engine Mechanical - 6.2L - H2
9. Drive the bearing out of or into the engine block. 10. Repeat the procedure for the additional inner bearings. Fig. 447: Driving Bearing Out Of Or Into Engine Block 11. For the 2 end bearings, front and rear, remove the nylon cone and driver bar extension. 12. Drive the bearings out of or into the engine block. CAMSHAFT AND BEARINGS CLEANING AND INSPECTION Tools Required
2008 Hummer H2 2008 ENGINE Engine Mechanical - 6.2L - H2
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