Chevrolet Silverado / GMC Sierra. Manual — part 50
Fig. 142: View Of Valve Pushrods
Courtesy of GENERAL MOTORS CORP.
1. Install the pushrods.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 143: Locating Arrow On Valve Rocker Arm Support
Courtesy of GENERAL MOTORS CORP.
2. Install the rocker arm supports.
IMPORTANT: Be sure that the arrow on the rocker arm support is in the up
position.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 144: Pushrod Socket, Roller Pivot & Valve Stem Tip
Courtesy of GENERAL MOTORS CORP.
3. Apply lubricant to the following rocker arm contact surfaces:
Pushrod socket (1)
Roller pivot (2)
Valve stem tip (3)
Refer to Sealers, Adhesives, and Lubricants for the correct part number.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 145: Valve Rocker Arm Assemblies
Courtesy of GENERAL MOTORS CORP.
4. Install the rocker arms as follows:
1. Finger start the bolt at location (1)
2. Finger start the bolt at location (2)
3. Finger start the bolt at location (3)
4. Finger start the remaining rocker arm bolts
NOTE:
Refer to Fastener Notice .
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
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