GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the balance shaft drive chain. Refer to Balance Chain Replacement.

  2. Object Number: 1367352  Size: SH

    Note: 

       • Do not disassemble the balance shaft assembly. Remove and install the balance shaft as a complete assembly.
       • Rotate the balance shaft to check for free rotation. If the balance shaft does not turn free, inspect the balance shaft bearings and bearing surface for damage.

  3. Remove and discard the left balance shaft retaining bolt.
  4. Remove the left balance shaft assembly.

Installation Procedure


    Object Number: 1367352  Size: SH
  1. Lubricate the balance shaft bearing journals with clean engine oil.
  2. Install the left balance shaft assembly with the counterweight down to prevent damage to the balance shaft bearings.
  3. Caution: Refer to Fastener Caution in the Preface section.

  4. Install a new balance shaft retaining bolt and tighten to 12 N·m (106 lb in).
  5. Install the balance shaft drive chain. Refer to Balance Chain Replacement.