GM Service Manual Online
For 1990-2009 cars only

Secondary Camshaft Drive Chain Installation - Right Side (LY7)


    Object Number: 1961723  Size: SH
  1. Ensure that the crankshaft is in the stage two timing drive assembly position (1).

  2. Object Number: 1958819  Size: SH
  3. Install the right secondary camshaft drive chain (1).

  4. Object Number: 1961724  Size: SH
  5. Place the secondary camshaft drive chain around the right camshaft intermediate drive chain idler outer sprocket, aligning the timing camshaft drive chain link (1) with the alignment access hole (2) made in the right camshaft intermediate drive chain idler inner sprocket.
  6. Wrap the secondary camshaft drive chain around both right actuator drive sprockets.

  7. Object Number: 1961725  Size: SH

    Important: Make sure there are 10 links between the timing camshaft drive chain links for the camshaft position actuator solenoid sprockets.

  8. Align the right exhaust camshaft position actuator solenoid sprocket alignment triangle mark (1) with the timing camshaft drive chain link (2).
  9. Align the right intake camshaft position actuator solenoid sprocket alignment triangle mark (4) with the timing camshaft drive chain link (3).
  10. There will be 22 links between the right camshaft intermediate drive chain idler timing camshaft drive chain link and the right exhaust camshaft position actuator solenoid sprocket timing camshaft drive chain link.

Secondary Camshaft Drive Chain Installation - Right Side (LE0, LW2)


    Object Number: 1961723  Size: SH
  1. Ensure that the crankshaft is in the stage two timing drive assembly position (1).

  2. Object Number: 1961766  Size: SH
  3. Install the right secondary camshaft drive chain (1).

  4. Object Number: 1961724  Size: SH
  5. Place the secondary camshaft drive chain around the right camshaft intermediate drive chain idler outer sprocket, aligning the timing camshaft drive chain link (1) with the alignment access hole (2) made in the right camshaft intermediate drive chain idler inner sprocket.
  6. Wrap the secondary camshaft drive chain around the right intake camshaft position actuator solenoid sprocket and the right exhaust camshaft sprocket.
  7. Make sure there are 10 links between the timing camshaft drive chain links for the right intake camshaft position actuator solenoid sprocket and the right exhaust camshaft sprocket.

  8. Object Number: 1961767  Size: SH

    Important: Make sure there are 10 links between the timing camshaft drive chain links for the camshaft position actuator solenoid sprockets.

  9. Align the right exhaust camshaft sprocket alignment circle mark (1) with the timing camshaft drive chain link (2).
  10. Align the right intake camshaft position actuator solenoid sprocket alignment triangle mark (4) with the timing camshaft drive chain link (3).
  11. There will be 22 links between the right camshaft intermediate drive chain idler timing camshaft drive chain link and the right exhaust camshaft sprocket timing camshaft drive chain link.