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Home >> Ford >> 2012 >> Explorer Limited, 3.5 8, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 176 (Engine Mechanical - 3.7L) >> Disassembly And Assembly Of Subassemblies >> Cylinder Head >> Assembly

Cylinder Head: Assembly

WARNING: This page is about a different car, the 2013 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

All cylinder heads 

  1. NOTE: If the components are to being reinstalled, they must be installed into their original location.
    NOTE: Lubricate the valve stem and valve stem seal with clean engine oil prior to installation.

    Using the Valve Stem Oil Seal Installer, install a new valve stem seal.

    Fig 1: Installing Valve Stem Seal
    G07958749Courtesy of FORD MOTOR CO.
  2. Install the valve.
  3. Using the Valve Spring Compressors, install the valve spring, retainer and key.
    Fig 2: Removing/Installing Keys, Retainer And Spring Using Valve Spring Compressors
    G07959176Courtesy of FORD MOTOR CO.
  4. Repeat the above steps for each valve.
  5. Install the timing chain guide pin and tighten in 2 stages.
    • Stage 1: Tighten to 20 Nm (177 lb-in).
    • Stage 2: Tighten an additional 60 degrees.

    RH cylinder head 

  6. Install a new CHT sensor.
    • Tighten to 10 Nm (89 lb-in).
  7. Install the timing chain tensioner arm pin and tighten in 2 stages.
    • Stage 1: Tighten to 20 Nm (177 lb-in).
    • Stage 2: Tighten an additional 60 degrees.
  8. Install 6 new RH exhaust manifold studs.
    • Tighten to 12 Nm (106 lb-in).
  9. NOTE: Failure to tighten the exhaust manifold nuts to specification a second time will cause the exhaust manifold to develop an exhaust leak.

    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 19 Nm (168 lb-in).
    • Stage 2: Tighten to 25 Nm (18 lb-ft).
      Fig 3: Identifying RH Exhaust Manifold Nuts Tightening Sequence
      G07488358Courtesy of FORD MOTOR CO.
  10. Install the RH exhaust manifold heat shield and the 2 bolts.
    • Tighten to 12 Nm (106 lb-in).

    LH cylinder head 

  11. Install 6 new LH exhaust manifold studs.
    • Tighten to 12 Nm (106 lb-in).
  12. NOTE: Failure to tighten the exhaust manifold nuts to specification a second time will cause the exhaust manifold to develop an exhaust leak.

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

    • Stage 1: Tighten to 19 Nm (168 lb-in).
    • Stage 2: Tighten to 25 Nm (18 lb-ft).
      Fig 4: Identifying Exhaust Manifold Nuts Tightening Sequence
      G07960120Courtesy of FORD MOTOR CO.
  13. Install the LH exhaust manifold heat shield and the 2 bolts.
    • Tighten to 12 Nm (106 lb-in).