GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2007 🢒 H3 🢒 Engine 🢒 Engine Mechanical - 3.7L 🢒 Balance Shaft Replacement - Left Side

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.

  2. Remove and discard the left balance shaft bolt.
  3. Remove the left balance shaft.

Installation Procedure

    Object Number: 1699702 Size: SH
  1. Lubricate the balance shaft bearing journals with clean engine oil.
  2. Install the left balance shaft with the counterweight down to prevent damage to the balance shaft bearings.

    3. Notice: Refer to Fastener Notice in the Preface section.

  3. Install a NEW balance shaft bolt.

    4. Tighten
    Tighten the bolt to 12 N·m (106 lb in).

  4. Install the balance shaft drive chain. Refer to Balance Chain Replacement .