Sierra Classic 2500 4WD V8-8.1L (2007)
8. Loosen the valve rocker arm cover bolts.
9. Remove the valve rocker arm cover.
Important: The valve rocker arm cover gasket may be reused if not removed from the valve rocker arm cover.
10. Replace the valve rocker arm cover gasket if it is cut or damaged.
11. Clean and inspect the valve rocker arm cover. Refer to Valve Rocker Arm Cover Cleaning and Inspection.
Installation Procedure
1. Install a NEW valve rocker arm cover gasket, if necessary.
2. Install the valve rocker arm cover.
3. Notice: Refer to Fastener Notice in Service Precautions.
Tighten the valve rocker arm cover bolts in sequence using 2 passes as shown.
1. Tighten the bolts a first pass to 6 Nm (53 inch lbs.).
2. Tighten the bolts a final pass to 12 Nm (106 inch lbs.).
