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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 3.5L-Ti-VCT >> Removal And Installation >> Cylinder Head - RH >> Installation

Cylinder Head - RH: Installation

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.
NOTE: The valve tappets must be installed in their original positions. Coat the valve tappets with clean engine oil prior to installation.
  1. Install a new gasket, the RH cylinder head and 8 new bolts. Tighten the bolts in the sequence shown in illustration below in 5 stages:
    • Stage 1: Tighten to 20 Nm (177 lb-in).
    • Stage 2: Tighten to 35 Nm (26 lb-ft).
    • Stage 3: Tighten 90 degrees.
    • Stage 4: Tighten 90 degrees.
    • Stage 5: Tighten 45 degrees.
    Fig 1: Identifying RH Cylinder Head Bolts Tightening Sequence
    G07958770Courtesy of FORD MOTOR CO.
  2. Install the bolt.
    • Tighten to 10 Nm (89 lb-in).
    Fig 2: Locating RH Cylinder Head M6 Bolt
    G07958768Courtesy of FORD MOTOR CO.
  3. NOTE: The valve tappets must be installed in their original positions.
    NOTE: Coat the valve tappets with clean engine oil prior to installation.

    Install the valve tappets.

    Fig 3: Locating Valve Tappets
    G07958742Courtesy of FORD MOTOR CO.
  4. Connect the CHT sensor jumper harness.
    Fig 4: Locating CHT Sensor Jumper Harness Connector
    G07960088Courtesy of FORD MOTOR CO.
  5. NOTE: If the engine is repaired or replaced because of upper engine failure, typically including valve or piston damage, check the intake manifold for metal debris. If metal debris is found, install a new intake manifold. Failure to follow these instructions can result in engine damage.

    Using new intake manifold and thermostat housing gaskets, install the lower intake manifold and the 10 bolts.

    • Tighten in the sequence shown in illustration to 10 Nm (89 lb-in).
    Fig 5: Installing Lower Intake Manifold With Tightening Squence
    G07397876Courtesy of FORD MOTOR CO.
  6. Install the 2 thermostat housing-to-lower intake manifold bolts.
    • Tighten to 10 Nm (89 lb-in).
    Fig 6: Locating Thermostat Housing-To-Lower Intake Manifold Bolts
    G07417511Courtesy of FORD MOTOR CO.
  7. NOTE: Align the bracket with the index mark made during removal.

    Install the upper intake manifold bracket and the bolt.

    • Tighten to 10 Nm (89 lb-in).
    Fig 7: Locating Upper Intake Manifold Bracket And Bolt
    G08029399Courtesy of FORD MOTOR CO.
  8. Install the engine lifting eye and the 2 bolts.
    • Tighten to 24 Nm (18 lb-ft).
    Fig 8: Locating Engine Lifting Eye And Mounting Bolts
    G08029398Courtesy of FORD MOTOR CO.
  9. Install the RH primary timing chain guide and the bolt.
    • Tighten to 10 Nm (89 lb-in).
    Fig 9: Locating RH Primary Timing Chain Guide And Bolt
    G07399066Courtesy of FORD MOTOR CO.
  10. Install 6 new RH exhaust manifold studs.
    • Tighten to 12 Nm (106 lb-in).
    Fig 10: Locating RH Exhaust Manifold Studs
    G07997750Courtesy of FORD MOTOR CO.
  11. NOTE: Failure to tighten the exhaust manifold nuts to specification a second time will cause the exhaust manifold to develop an exhaust leak.
    NOTE: Heat shield removed from graphic for clarity.

    Using a new gasket, install the RH exhaust manifold and 6 new nuts. Tighten in 2 stages in the sequence shown in illustration:

    • Stage 1: Tighten to 20 Nm (177 lb-in).
    • Stage 2: Tighten to 25 Nm (18 lb-ft).
    Fig 11: Locating RH Exhaust Manifold Studs With Tightening Sequence
    G07997751Courtesy of FORD MOTOR CO.
  12. If equipped, install the block heater wiring harness onto the engine.
    • Tighten the cylinder block drain plug to 10 Nm (89 lb-in) plus an additional 720 degrees.
    • Tighten the block heater to 40 Nm (30 lb-ft).
    Fig 12: Locating RH Cylinder Block Drain Plug Or Block Heater
    G06281684Courtesy of FORD MOTOR CO.
  13. Install the LH cylinder block drain plug.
    • Tighten to 16 Nm (142 lb-in) plus an additional 180 degrees.
    Fig 13: Locating LH Cylinder Block Drain Plug
    G07463896Courtesy of FORD MOTOR CO.
  14. Connect the 6 fuel injector electrical connectors (3 shown in illustration).
    Fig 14: Locating Fuel Injector Electrical Connectors
    G07417508Courtesy of FORD MOTOR CO.
  15. Install the ground cable and bolt to the RH cylinder head.
    • Tighten to 10 Nm (89 lb-in).
    Fig 15: Locating RH Cylinder Head Ground Cable And Bolt
    G08029392Courtesy of FORD MOTOR CO.
  16. Install the 2 CMP sensors and the 2 bolts.
    • Tighten to 10 Nm (89 lb-in).
    Fig 16: Locating CMP Sensors And Bolts
    G07986859Courtesy of FORD MOTOR CO.
  17. Connect the 2 RH CMP sensor electrical connectors.
    Fig 17: Locating RH CMP Sensor Electrical Connectors
    G07986858Courtesy of FORD MOTOR CO.
  18. If equipped, position the block heater wiring harness onto the engine. Connect the block heater electrical connector and install the heat shield.
    Fig 18: Locating Block Heater Electrical Connector And Heat Shield
    G08029423Courtesy of FORD MOTOR CO.
  19. Install the RH camshafts. REFER to Camshaft .