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Home >> Chevrolet >> 2007 >> Optra LT, Automatic >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> Engine Mechanical - 1.4L DOHC >> Repair Instructions >> Camshaft Gear Replacement >> Removal Procedure

Removal Procedure

    Fig 1: View Of Ignition Wires And Spark Plugs
    GM1371923Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Battery Disconnect Caution .
  1. Disconnect the negative battery cable.
  2. Remove the timing belt. Refer to Timing Belt Replacement .
  3. Remove the spark plug cover bolts.
  4. Remove the spark plug 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. Fig 2: View Of Valve Cover And Bolts
    GM1371856Courtesy of GENERAL MOTORS CORP.
  8. Remove the valve cover nuts.
  9. Remove the valve cover washers.
  10. Remove the valve cover and the valve cover gasket.
    11. Fig 3: View Of Exhaust And Intake Camshaft Gear
    GM1371901Courtesy of GENERAL MOTORS CORP.
    NOTE: 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.
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