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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 2.0L-GTDI) >> Removal And Installation >> Cylinder Head >> Installation

Cylinder Head: Installation

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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.
  1. NOTE: Observe all warnings or cautions and follow all application directions contained on the packaging of the silicone gasket remover and the metal surface prep.
    NOTE: Clean the cylinder head bolt holes in the cylinder block. Make sure all coolant, oil or other foreign material is removed.
    NOTE: If there is no residual gasket material present, metal surface prep can be used to clean and prepare the surfaces.

    Clean the cylinder head-to-cylinder block mating surface of both the cylinder head and the cylinder block in the following sequence.

    1. Remove any large deposits of silicone or gasket material with a plastic scraper.
    2. Apply Motorcraft® Silicone Gasket Remover following package directions, and allow to set for several minutes.
    3. Remove the Motorcraft® Silicone Gasket Remover with a plastic scraper. A second application of Motorcraft® Silicone Gasket Remover may be required if residual traces of silicone or gasket material remain.
    4. Apply Motorcraft® Metal Surface Prep following package directions, to remove any traces of oil or coolant, and to prepare the surfaces to bond with the new gasket. Do not attempt to make the metal shiny. Some staining of the metal surfaces is normal.
  2. Check the cylinder head distortion and the cylinder block distortion. REFER to CYLINDER HEAD DISTORTION , and CYLINDER BLOCK DISTORTION .
  3. Install a new cylinder head gasket.
    Fig 1: Identifying Cylinder Head Gasket
    G08028656Courtesy of FORD MOTOR CO.
  4. NOTE: The cylinder head bolts are torque-to-yield and must not be reused. New cylinder head bolts must be installed.

    Install the cylinder head and the 10 new bolts.

    • Tighten the bolts in the sequence shown in illustration in 5 stages.
      • Stage 1: Tighten to 7 Nm (62 lb-in).
      • Stage 2: Tighten to 15 Nm (133 lb-in).
      • Stage 3: Tighten to 55 Nm (41 lb-ft).
      • Stage 4: Tighten 90 degrees.
      • Stage 5: Tighten an additional 90 degrees.
    Fig 2: Cylinder Head Bolt Tightening Sequence
    G08028657Courtesy of FORD MOTOR CO.
  5. NOTE: Lubricate the valve tappets with clean engine oil prior to installing.

    Install the 16 valve tappets in their original positions.

    Fig 3: Identifying Valve Tappets
    G08028637Courtesy of FORD MOTOR CO.
  6. Connect the CHT  electrical connector and slide the insulator down.
    Fig 4: Connecting CHT Electrical Connector And Slide Insulator
    G08028659Courtesy of FORD MOTOR CO.
  7. Connect the 4 coolant hoses to the coolant outlet.
    • Connect the ECT  sensor electrical connector.
    Fig 5: Locating ECT Sensor Electrical Connector And Coolant Hoses
    G08028651Courtesy of FORD MOTOR CO.
  8. Install the ground wire and bolt on the cylinder head.
    • Tighten to 20 Nm (177 lb-in).
    Fig 6: Locating Cylinder Head Ground Wire Bolt
    G08028650Courtesy of FORD MOTOR CO.
  9. Install the camshafts. REFER to Camshafts .
  10. Install the fuel injectors. REFER to FUEL INJECTORS .
  11. Remove the drain plug and drain the engine oil.
    • Install the drain plug and tighten to 27 Nm (20 lb-ft).
    Fig 7: Locating Engine Oil Drain Plug
    G08028662Courtesy of FORD MOTOR CO.
  12. NOTE: Lubricate the engine oil filter gasket with clean engine oil prior to installing the oil filter.

    Install a new engine oil filter.

    • Tighten to 8 Nm (71 lb-in) plus an additional 180 degrees.
    Fig 8: Installing Engine Oil Filter
    G08028663Courtesy of FORD MOTOR CO.
  13. Install the turbocharger. REFER to TURBOCHARGER .
  14. Fill the engine with clean engine oil.