GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Aveo 🢒 Engine 🢒 Engine Mechanical - 1.4L DOHC 🢒 Camshaft Gear Replacement

Removal Procedure

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


    Object Number: 1371923 Size: SH
  1. Disconnect the negative battery cable.
  2. Remove the timing belt. Refer to Timing Belt Replacement .
  3. Remove the engine cover bolts.
  4. Remove the engine cover.
  5. Disconnect the ignition wires from the spark plugs.
  6. Disconnect the crankcase ventilation tubes from the valve cover.
  7. Disconnect the camshaft position (CMP) sensor.

    8. Object Number: 1371856 Size: SH
  8. Remove the valve cover nuts.
  9. Remove the valve cover washers.
  10. Remove the valve cover and the valve cover gasket.

    11. Object Number: 1371901 Size: SH

    Notice: Use extreme care when installing the camshaft not to nick, scratch, or damage the camshaft lobes or bearing surfaces.

  11. While holding the intake camshaft firmly in place, remove the intake camshaft gear bolt.
  12. Remove the intake camshaft gear.
  13. While holding the exhaust camshaft firmly in place, remove the exhaust camshaft gear bolt.
  14. Remove the exhaust camshaft gear.

Installation Procedure

    Object Number: 1371885 Size: SH

    Notice: Use extreme care when installing the camshaft not to nick, scratch, or damage the camshaft lobes or bearing surfaces.

  1. Install the intake camshaft gear.

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

  2. While holding the intake camshaft firmly in place, install the intake camshaft gear bolt.

    3. Tighten
    Tighten the intake camshaft gear bolt to 67.5 N·m (49 lb ft).


    Object Number: 1371901 Size: SH
  3. Install the exhaust camshaft gear.
  4. While holding the exhaust camshaft firmly in place, install the exhaust camshaft gear bolt.

    5. Tighten
    Tighten the exhaust camshaft gear bolt to 67.5 N·m (49 lb ft).


    Object Number: 1371856 Size: SH
  5. Apply a small amount of gasket sealant to the corners of the front camshaft caps and to the top of the rear valve cover-to-cylinder head seal.
  6. Install the valve cover and the valve cover gasket.
  7. Install the valve cover washers.
  8. Install the valve cover nuts.

    9. Tighten
    Tighten the valve cover nuts to 9 N·m (80 lb in).


    Object Number: 1371923 Size: SH
  9. Connect the crankcase ventilation tubes to the valve cover.
  10. Connect the ignition wires to the spark plugs.
  11. Install the engine cover.
  12. Install the engine cover bolts.

    13. Tighten
    Tighten the engine cover bolts to 3 N·m (27 lb in).

  13. Install the timing belt. Refer to Timing Belt Replacement .
  14. Connect the CMP.
  15. Connect the negative battery cable.