Camshaft Bearing Removal: Notes

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required

J 33049 Camshaft Bearing Service Set

Important: A loose camshaft bearing may be caused by an enlarged, out of round or damaged engine block bearing bore.

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 .
Repair or replace the components as required.

Fig 1: Inspecting Camshaft Bearings For Loose Fit In Engine Block Bearing Bores
Courtesy of GENERAL MOTORS CORP.
Select the expanding driver (4-8) and washer (2 or 3) from the J 33049 .
Assemble the tool.
Insert the tool through the front of the engine block and into the bearing.
Tighten the expander assembly (15) nut until snug.
Push the guide cone (1) into the front camshaft bearing to align the tool.

Fig 2: Selecting Expanding Driver & Washer From J 33049
Courtesy of GENERAL MOTORS CORP.
Drive the bearing from the block bore.
Important: 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.
Repeat the above procedures to remove the remaining bearings.

Fig 3: Driving Bearing From Block Bore
Courtesy of GENERAL MOTORS CORP.