GM Service Manual Online
For 1990-2009 cars only

    Object Number: 2146292  Size: SH
  1. Remove the balance shaft drive chain tensioner bolts.
  2. Remove the balance shaft drive chain tensioner (1).

  3. Object Number: 2146293  Size: SH
  4. Remove the adjustable balance shaft chain guide bolt.
  5. Remove the adjustable balance shaft chain guide (1).

  6. Object Number: 2146294  Size: SH
  7. Remove the small balance shaft drive chain guide bolts.
  8. Remove the small balance shaft drive chain guide (1).

  9. Object Number: 2146295  Size: SH
  10. Remove the upper balance shaft drive chain guide bolts.
  11. Remove the upper balance shaft drive chain guide (1).

  12. Object Number: 2146296  Size: SH

    Note: It may ease removal of the balance shaft drive chain to get all of the slack in the chain between the crankshaft and water pump sprockets.

  13. Remove the balance shaft drive chain (1).
  14. Remove the balance shaft drive sprocket (2).