Camshaft Bearing Removal: Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: 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.

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 (RPO LY2/LC9/LY5/LMG) or Camshaft and Bearings Cleaning and Inspection (RPO LY6/L76/L92) .
Repair or replace the components, as required.

Fig 2: View Of J 33049 Camshaft Bearing Service Kit Components

Courtesy of GENERAL MOTORS CORP.

Select the expanding driver (4-8) and washer (2 or 3) from the J 33049 . See Special Tools .
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 in order to align the tool.

Fig 3: Driving Bearing Out Of Or Into Engine Block

Courtesy of GENERAL MOTORS CORP.

Drive the bearing from the block bore.

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.

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