Camshaft Bearing Removal: Notes

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.

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 1: Inspecting Camshaft Bearings

   Courtesy of GENERAL MOTORS CORP.
3. Select the expanding driver (4-8) and washer (2 or 3) from the tool usage information.
4. Assemble the J 33049  .
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 to align the tool.
   Fig 2: Assembling J 33049

   Courtesy of GENERAL MOTORS CORP.
8. Drive the bearing from the block bore.
   Fig 3: Driving Bearing From Block Bore

   Courtesy of GENERAL MOTORS CORP.

   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.

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