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: 1699702  Size: SH

    Important: 

       • Do not disassemble the balance shaft. 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 the right balance shaft.

Installation Procedure


    Object Number: 1699702  Size: SH
  1. Lubricate the balance shaft bearing journals with clean engine oil.
  2. Install the right balance shaft assembly with the counterweight down to prevent damage to the balance shaft bearings.
  3. Install the balance shaft drive chain. Refer to Balance Chain Replacement .