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Home >> Ford >> 2021 >> Explorer Limited Hybrid, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Engine - 3.3L DURATEC-V6) >> Removal And Installation >> Cylinder Head RH >> Removal

Cylinder Head RH: Removal

WARNING: This page is about a different variant/trim than selected.
NOTE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces that enters the oil passages, coolant passages or the oil pan, can cause engine failure.
NOTE: If the cylinder head is replaced, a new secondary timing chain tensioner will need to be installed. Refer to Variable Camshaft Timing (VCT) Unit  .
  1. With the vehicle in NEUTRAL, position it on a hoist. Refer to: Jacking and Lifting - Overview .
  2. Release the fuel system pressure. Refer to: Fuel System Pressure Release .
  3. Disconnect the battery ground. Refer to: Battery Disconnect and Connect .
  4. Drain the cooling system. Refer to: Engine Cooling System Draining, Vacuum Filling and Bleeding .
  5. Remove the cowl panel. Refer to: Cowl Panel .
  6. Remove the pin-type retainer, bolts and the rear underbody shield.
    GFD511732Courtesy of FORD MOTOR COMPANY
  7. Remove the following items:

    1. Remove the RH catalytic converter. Refer to: Catalytic Converter RH .
    2. Remove the RH camshafts. Refer to: Camshafts .

    • Loosen the fuel rail to fuel rail high-pressure fuel tube flare nuts and remove.

    • Discard the fuel rail to fuel rail high-pressure fuel tube.

    GFD511733Courtesy of FORD MOTOR COMPANY
    • Detach the wiring harness retainer.

    • Remove the bolt and position the wiring harness aside.

    GFD511734Courtesy of FORD MOTOR COMPANY
    • Disconnect the CHT sensor electrical connector.

    • Disconnect the RH CMP sensor electrical connectors.

    • Detach and disconnect the direct injection wiring harness electrical connector.

    GFD511735Courtesy of FORD MOTOR COMPANY
  11. Remove the bolts and the RH CMP sensors.
    GFD511736Courtesy of FORD MOTOR COMPANY
  12. NOTE: Do not use power tools to remove the bolt or damage to the upper RH timing chain guide may occur.

    Remove the bolts and the RH timing chain guide.

    GFD511737Courtesy of FORD MOTOR COMPANY
  13. NOTE: If the components are to be reinstalled, they must be installed in the same positions. Mark the components for installation into their original locations.

    Remove the valve tappets.

    GFD511738Courtesy of FORD MOTOR COMPANY
  14. Inspect and install new components as necessary.
    GFD511739Courtesy of FORD MOTOR COMPANY
  15. Remove and discard the M6 bolt.
    GFD511740Courtesy of FORD MOTOR COMPANY
    • NOTE: Place clean shop towels over exposed engine cavities. Carefully remove the towels so foreign material is not dropped into the engine. Any foreign material (including any material created while cleaning gasket surfaces) that enters the oil passages or the oil pan, may cause engine failure.
      NOTE: Aluminum surfaces are soft and can be scratched easily. Never place the cylinder head gasket surface, unprotected, on a bench surface
      NOTE: The cylinder head bolts must be discarded and new bolts must be installed. They are tighten-to-yield designed and cannot be reused.

      Remove and discard the bolts.

    • With the aid of an assistant, remove the cylinder head.

    GFD511741Courtesy of FORD MOTOR COMPANY
  17. NOTE: 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 that make leak paths. Use a plastic scraping tool to remove all traces of the head gasket.

    • Make sure that the mating faces are clean and free of foreign material.

    • Support the cylinder head on a bench with the head gasket side up and check the cylinder head distortion. Refer to: Cylinder Head Distortion .

    GFD511742Courtesy of FORD MOTOR COMPANY
  18. Remove and discard the cylinder head gasket.
    GFD511743Courtesy of FORD MOTOR COMPANY
  19. NOTE: Place clean, lint-free shop towels over exposed engine cavities. Carefully remove the towels so foreign material is not dropped into the engine. Any foreign material (including any material created while cleaning gasket surfaces) that enters the oil passages or the oil pan, may cause engine failure.
    NOTE: 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 that make leak paths. Use a plastic scraping tool to remove all traces of the head gasket.

    • Make sure that the mating faces are clean and free of foreign material.

GFD511744Courtesy of FORD MOTOR COMPANY
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