GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Classic - 2WD 🢒 Engine 🢒 Engine Mechanical - 8.1L 🢒 Valve Lifter Installation

    Object Number: 470996 Size: SH

    Important: 

       • If a new camshaft is installed, replace all valve lifters.
       • If using the valve lifters again, install in their original location. The valve lifter guide retainer must contact all valve lifter guides. If the valve lifter guide retainer is bent, the valve lifter guide retainer must be replaced.

  1. Apply clean engine oil to the valve lifter rollers.
  2. Install the valve lifters.
  3. Install the valve lifter guides over the flats on the valve lifters. Ensure the rollers of the valve lifters are properly aligned with the camshaft lobes.

    4. Object Number: 470994 Size: SH
  4. Install the valve lifter guide retainer.

    5. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the valve lifter guide retainer bolts.

    6. Tighten
    Tighten the valve lifter guide retainer bolts to 25 N·m (18 lb ft).