GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Optra 🢒 Engine 🢒 Engine Mechanical - 2.0L (L34 GMDAT) 🢒 Valve Rocker Arm Cover Replacement

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1289763 Size: SH
  1. Disconnect the negative battery cable.
  2. Disconnect the breather tube from the valve cover.
  3. Disconnect the vacuum line from the valve cover.
  4. Remove the spark plug cover bolts.
  5. Remove the spark plug cover.
  6. Disconnect the ignition wires from the spark plugs.

    7. Object Number: 1252112 Size: SH
  7. Disconnect the camshaft position (CMP) sensor connector.
  8. Remove the valve cover bolts.
  9. Remove the valve cover.

    10. Object Number: 1252113 Size: SH
  10. Remove the valve cover gasket from the valve cover.

Installation Procedure

    Object Number: 1890503 Size: SH
  1. Apply a continuous bead of gasket sealant to the top of the cylinder head where the valve cover gasket contacts the cylinder head.
  2. Install the new valve cover gasket to the valve cover.

    3. Object Number: 1252112 Size: SH
  3. Install the valve cover.

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

  4. Install the valve cover bolts.

    5. Tighten
    Tighten the valve cover bolts to 8 N·m (71 lb in).


    Object Number: 1289763 Size: SH
  5. Connect the ignition wires to the spark plugs.
  6. Install the spark plug cover.
  7. Install the spark plug cover bolts.

    8. Tighten
    Tighten the spark plug cover bolts to 8 N·m (71 lb in).

  8. Connect the vacuum line to the valve cover.
  9. Connect the breather tube to the valve cover.
  10. Connect the CMP sensor connector.
  11. Connect the negative battery cable.