CTS V6-3.2L VIN N (2003)
1. Ensure the crankshaft is 60 degrees BTDC.
The 60 degrees BTDC point can be identified by the index mark on the oil pump cover, at this position the valves will not touch the pistons.
Important: The camshaft drive sprockets have numbered slots that must be aligned with the pins on the camshafts.
When the numbered camshaft drive sprocket slot is properly installed on the camshaft pin, the reference mark (1, 2, 3 or 4) on the drive sprocket,
will align with the notch on the rear timing belt cover.
2. Install the camshaft drive sprocket.
Ensure the camshaft pin is installed in the correct numbered slot on the drive sprocket.
Notice:
Refer to Torque to Yield Bolts Notice in Service Precautions.
See: Service Precautions/Vehicle Damage Warnings/Torque to Yield Bolts Notice
3. Install the new camshaft drive sprocket bolt.
