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Home >> Chevrolet >> 2012 >> Tahoe PPV >> Repair and Diagnosis >> External Pages >> Different car >> Section 1679 (Engine Mechanical - 6.6L (LMM) - Repair Instructions - Off Vehicle (3 Of 3)) >> Valve Rocker Arm, Shaft, and Push Rod Installation

Valve Rocker Arm, Shaft, and Push Rod Installation

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View of Valve Bridge
    GM1342411Courtesy of GENERAL MOTORS CORP.
    NOTE: Install the valve bridge with the expansion side of bridge away from the injector.
  1. Install the valve bridge.
    2. Fig 2: View Of Pushrods, Valve Spring Caps & Valve Lifter Bridges
    GM660488Courtesy of GENERAL MOTORS CORP.
  2. Install the valve bridge pins.
  3. Install the pushrods.
    4. Fig 3: View Of Rocker Arm Shaft
    GM663833Courtesy of GENERAL MOTORS CORP.
    CAUTION: The pushrods must be correctly seated in the valve lifter and valve rocker arms before the rocker arm shaft assembly is torqued into place. Improper seating of the pushrods can cause damage to the pushrods or the valve rocker arm shaft assembly components.
  4. Install the rocker arm shaft assembly.
    5. Fig 4: Rocker Arm Shaft Bolts Tightening Sequence
    GM721463Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  5. Install the rocker arm shaft assembly bolts. Tighten the rocker arm shaft assembly bolts in the proper sequence. Tighten the rocker arm shaft bolts to 41 N.m (30 lb ft).
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