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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) >> Cylinder Head Gasket Removal / Installation - 2.3L >> Removal

Cylinder Head Gasket Removal / Installation - 2.3L: Removal

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 battery. See BATTERY DISCONNECT .
  2. Remove the camshafts. See CAMSHAFTS REMOVAL / INSTALLATION - 2.3L , .
  3. Remove the exhaust manifold. See EXHAUST MANIFOLD REMOVAL / INSTALLATION - 2.3L , .
  4. Remove the fuel injector supply manifold. See FUEL INJECTION SUPPLY MANIFOLD AND FUEL INJECTOR - 2.3L REMOVAL / INSTALLATION , .
    Fig 1: Locating Positive Crankcase Ventilation (PCV) Hose Clip
    G04929189Courtesy of MAZDA MOTORS CORP.
  5. Remove the positive crankcase ventilation (PCV) hose clips.
  6. Remove the coolant hose retainer clip, the stud bolt and the ground cable.
  7. Remove the exhaust gas recirculation (EGR) tube from the cylinder head.
  8. Disconnect the EGR valve electrical connector.
  9. Disconnect the EGR coolant hose and remove it from the hose bracket.
    Fig 2: Locating Coolant Bypass Hose Bracket
    G04929190Courtesy of MAZDA MOTORS CORP.
  10. Disconnect the coolant bypass hose.
    Fig 3: Locating Cylinder Head Bolts
    G04929191Courtesy of MAZDA MOTORS CORP.
  11. Remove the bolts and the cylinder head.
    Fig 4: Locating Head Gasket
    G04929192Courtesy of MAZDA MOTORS CORP.
  12. Remove the head gasket.
  13. Clean the cylinder head mating surfaces.
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