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Home >> Mazda >> 2007 >> B4000 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 555 (Engine Mechanical 2.3L Service Information) >> Valve Cover Removal / Installation - 2.3L >> Removal Note

Removal Note

WARNING: This page is about a different car, the 2007 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable. See BATTERY DISCONNECT .
  2. Remove the intake manifold assembly. See INTAKE MANIFOLD REMOVAL / INSTALLATION - 2.3L , .
  3. Position aside the cylinder head temperature (CHT) sensor cover.
  4. Disconnect the CHT sensor electrical connector.
  5. Disconnect the engine wiring harness support bracket retainers from the valve cover studs.
  6. Disconnect the spark plug wires from the spark plugs.
  7. Disconnect the ignition coil electrical connector.
  8. Remove the 4 bolts and the ignition coil and spark plug wires as an assembly.
  9. Disconnect the camshaft position (CMP) sensor electrical connector.
  10. Remove the bolt and the CMP sensor.
  11. Disconnect the crankcase ventilation tube quick connect coupling.
  12. Remove the bolts and the valve cover.
    CAUTION:
    • Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These tools cause scratches and gouges which make leak paths.
  13. Clean and inspect the cylinder head sealing surfaces with metal surface prep and silicone gasket remover. Observe all warnings and cautions and follow all application directions contained on the packaging of the silicone gasket remover and metal surface prep.
  14. Remove and discard the valve cover gaskets.
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