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HOMESERVICE MANUALSCHEVROLET2005OPTRA5 BASE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALMECHANICALENGINE MECHANICAL - 1.4L DOHCREPAIR INSTRUCTIONSCAMSHAFT REPLACEMENTREMOVAL PROCEDURE
2005 Chevrolet Optra5 Base, Standard

Removal Procedure

2005 Chevrolet Optra5 Base, StandardSECTION Removal Procedure
    Fig 1: Identifying Cover Screws
    GM1371851Courtesy of GENERAL MOTORS CORP.
  1. Remove the timing belt. Refer to Timing Belt Replacement .
  2. Remove the spark plug cover bolts.
  3. Remove the spark plug cover.
    4. Fig 2: View Of Throttle Cable
    GM1371852Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the breather tube from the valve cover.
  5. Disconnect the crankcase ventilation tube from the valve cover.
    6. Fig 3: View Of Camshaft Position (CMP) Sensor Connector
    GM1371854Courtesy of GENERAL MOTORS CORP.
  6. Disconnect the camshaft position (CMP) sensor connector.
    7. Fig 4: View Of Ignition Wires And Spark Plugs
    GM1371855Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the ignition wires from the spark plugs.
    8. Fig 5: View Of Valve Cover And Bolts
    GM1371856Courtesy of GENERAL MOTORS CORP.
  8. Remove the valve cover bolts.
  9. Remove the valve cover and gasket.
    10. Fig 6: View Of Intake And Exhaust Camshaft
    GM1371901Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.