GM Service Manual Online
For 1990-2009 cars only

Valve Rocker Arm Cover Replacement - Left Side LSA / LS9


Object Number: 2160415  Size: MF

Callout

Component Name

Preliminary Procedure

  1. Remove the crankcase ventilation hoses/pipes. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement.
  2. Remove the ignition coil. Refer to Ignition Coil Replacement.

1

Valve Rocker Arm Cover Fastener (Qty: 4)

Caution: Refer to Component Fastener Tightening Caution in the Preface section.

Tighten
12 N·m (106 lb in)

2

Valve Rocker Arm Cover

Procedure

  1. Disconnect any electrical connectors.
  2. Transfer components as necessary.

Valve Rocker Arm Cover Replacement - Left Side without LS9

Removal Procedure


    Object Number: 651874  Size: SH
  1. Remove the left engine sight cover. Refer to Upper Intake Manifold Sight Shield Replacement.
  2. Disconnect the generator electrical connector (1).
  3. Remove the engine wiring harness generator lead nut (3) and lead.

  4. Object Number: 697215  Size: SH
  5. Remove the ignition coil assembly.

  6. Object Number: 1408866  Size: SH
  7. Loosen the valve rocker arm cover bolts.
  8. Remove the valve rocker cover.

  9. Object Number: 490696  Size: SH
  10. Remove the gasket (1) from the rocker cover. Discard the OLD gasket.

Installation Procedure

Note: 

   • All gasket surfaces should be free of oil and other foreign material during assembly.
   • DO NOT reuse the valve rocker arm cover gasket.
   • The valve rocker arm cover bolt grommets may be reused.
   • If the positive crankcase ventilation (PCV) valve grommet has been removed from the rocker arm, install a NEW grommet during assembly.


    Object Number: 490696  Size: SH
  1. Install a NEW rocker cover gasket (1) into the valve rocker cover lip.

  2. Object Number: 1408866  Size: SH
  3. Install the valve rocker arm cover.
  4. Caution: Refer to Fastener Caution in the Preface section.

  5. Tighten the valve rocker cover bolts.
  6. Tighten
    Tighten the valve rocker arm cover bolts to 12 N·m (106 lb in).


    Object Number: 697215  Size: SH
  7. Install the ignition coil assembly.

  8. Object Number: 651874  Size: SH
  9. Connect the generator electrical connector (1).
  10. Install the engine wiring harness generator lead and nut (3).
  11. Tighten
    Tighten the engine wiring harness generator lead nut to 13 N·m (115 lb in).

  12. Install the left engine sight cover. Refer to Upper Intake Manifold Sight Shield Replacement.