GM Service Manual Online
For 1990-2009 cars only

Tools Required

EN 46337 Camshaft Sprocket/Crankshaft Balancer Holder


    Object Number: 897035  Size: SH

    Important: If the timing belt is to be removed, the crankshaft balancer must be rotated to position number 1 piston at top dead center (TDC) of compression stroke to avoid valve-to-piston contact.

  1. Rotate the balancer and align the white mark on the balancer (1) with the locating tab (2) on the front cover.

  2. Object Number: 897041  Size: SH
  3. Inspect for cylinder number 1 piston at TDC. The pointer on the upper cover (2) will be aligned with the number 1 cylinder TDC mark (1) on the camshaft sprocket.

  4. Object Number: 897036  Size: SH
  5. Use the EN 46337 and a breaker bar in order to retain the balancer.

  6. Object Number: 897037  Size: SH
  7. Remove the bolt (227), balancer (228) and guide (236).