GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 6098-A Camshaft Bearing Remover and Installer

  1. Remove the camshaft rear bearing hole plug.

  2. Object Number: 22780  Size: SH
  3. Use the J 6098-A in order to remove the inner camshaft bearings. Repeat the following procedure for each of the inner camshaft bearings:
  4. 2.1. With the nut and the thrust washer installed to the end of the puller screw threads, index the pilot in the camshaft front bearing and install the puller screw through the pilot and the bearing to be removed.
    2.2. Install the bearing tool with the shoulder toward the bearing.
    2.3. Using two wrenches, hold the puller screw while you turn the nut in order to draw the bearing out of the bore.
    2.4. When the bearing has been pulled from the bore, remove the bearing tool and the bearing from the puller screw.
    2.5. Index the pilot in the rear camshaft bearing in order to remove the rear inner camshaft bearing.

    Object Number: 22774  Size: SH
  5. Use the J 6098-A in order to remove the front and rear camshaft bearings.
  6. 3.1. Assemble the bearing tool to the driver.
    3.2. Drive the front and rear bearings out of the block bore. Drive inward toward the center of the engine block.

Installation Procedure

Tools Required

J 6098-A Camshaft Bearing Remover and Installer

    Important: 

       • The outer front and rear camshaft bearings must be installed first. These bearings serve as guides for tool pilot and help center the inner bearings during the installation process.
       • Align the camshaft bearing oil holes properly during installation. Position the number 1 camshaft bearing oil holes at 1 o'clock and 5 o'clock. Position the number 2-4 inner camshaft bearing oil holes at 5 o'clock toward the left side of the engine block and even with the bottom of the cylinder bore. Position the number 5 camshaft bearing oil hole at 12 o'clock.


    Object Number: 22774  Size: SH
  1. Use the J 6098-A in order to install the front and rear camshaft bearings.
  2. 1.1. Assemble the bearing tool to the driver handle.
    1.2. Align the oil holes.
    1.3. Drive the front and the rear bearings inward toward the center of the engine block.

    Object Number: 22780  Size: SH
  3. Use the J 6098-A in order to install the inner camshaft bearings. Repeat the following steps for each of the inner camshaft bearings:
  4. 2.1. With the nut and the thrust washer installed to the end of the puller screw threads, index the pilot in the camshaft front bearing and install the puller screw through the pilot.
    2.2. Index the camshaft bearing in the bore. Make sure you align the oil hole.
    2.3. Install the puller screw through the bearing bore and bearing to be installed and assemble bearing tool to the puller screw with the shoulder toward the bearing. Make sure that enough threads are engaged.
    2.4. Using two wrenches, hold the puller screw while you turn the nut in order to draw the bearing into the bore. When the bearing has been pulled into the bore, remove the bearing tool and the puller screw and check the alignment of the bearing oil hole to the bore oil hole.
  5. Install a new camshaft rear bearing hole plug.