GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 33049 Camshaft Bearing Remover/Installer Set

  1. Remove the camshaft. Refer to Camshaft Removal.
  2. Important: Do not attempt to reuse old camshaft bearings.


    Object Number: 4902  Size: SH
  3. Remove the camshaft bearings.
  4. 2.1. Choose the proper pilot.
    2.2. Choose the proper nut.
    2.3. Choose the proper thrust washer.
    2.4. Assemble J 33049 . Make sure that the puller nut is attached securely to the puller threads.
    2.5. Pull out the camshaft bearings.

Installation Procedure

Tools Required

J 33049 Camshaft Bearing Remover/Installer Set


    Object Number: 4902  Size: SH
  1. Install the camshaft bearings.
  2. 1.1. Select the proper front camshaft bearing.
    1.2. Select the proper intermediate camshaft bearings.
    1.3. Select the proper rear camshaft bearing.
    1.4. Choose the proper pilot.
    1.5. Choose the proper nut.
    1.6. Choose the proper thrust washer.
    1.7. Assemble the J 33049 .
    1.8. Install the camshaft bearing onto theJ 33049 .
    1.9. Align the oil hole in the camshaft bearing with the oil hole in the cylinder block.

    Notice: The oil holes on the camshaft bearings must be aligned with the oil holes in the cylinder block. This will ensure that the oil flow will not be restricted.

    1.10. Pull the camshaft bearing into place.

    Object Number: 4903  Size: SH
  3. Inspect the alignment of the camshaft bearing oil holes and the cylinder block oil holes. Probe the camshaft bearing oil holes in order to verify that the camshaft bearing oil holes are properly aligned.