Chevrolet Silverado / GMC Sierra. Service manual — part 619

1. Install the lower valve rocker arm cover.

Fig. 5: Lower Valve Rocker Arm Cover Bolts Tightening Sequence
Courtesy of GENERAL MOTORS CORP.

2. Install the lower valve rocker arm cover bolts.

Tighten:

Tighten the lower valve rocker arm cover bolts in the proper sequence to 10 N.m (89
lb in).

Retighten the lower valve rocker arm cover bolts in the proper sequence to the same
torque, 10 N.m (89 lb in).

VALVE ROCKER ARM COVER INSTALLATION - UPPER LEFT SIDE

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 6: View Of Upper Valve Rocker Arm Cover & Gasket
Courtesy of GENERAL MOTORS CORP.

1. Install the upper valve rocker arm cover.

IMPORTANT: The gasket may be reused if it is not torn, cracked, stretched,

or swollen.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 7: Upper Valve Rocker Arm Cover Bolts Tightening Sequence
Courtesy of GENERAL MOTORS CORP.

2. Install the upper valve rocker arm cover bolts.

Tighten: Tighten the upper valve rocker arm cover bolts to 8 N.m (71 lb in).

VALVE ROCKER ARM COVER INSTALLATION - UPPER RIGHT SIDE

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 8: View Of Upper Valve Rocker Arm Cover & Gasket
Courtesy of GENERAL MOTORS CORP.

1. Install the upper valve rocker arm cover.

IMPORTANT: The gasket may be reused if it is not torn, cracked, stretched,

or swollen.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado