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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 180 (Engine Mechanical - 5.8L (4V)) >> Disassembly And Assembly Of Subassemblies >> Cylinder Head >> Cylinder Head (View 3 of 3) >> Assembly

Cylinder Head (View 3 of 3): Assembly

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  1. NOTE: Lubricate the camshafts with clean engine oil prior to installation.
    NOTE: RH shown in illustration, LH similar.

    Install the camshafts.

    Fig 1: Locating RH And LH Camshafts
    G07989210Courtesy of FORD MOTOR CO.
  2. NOTE: The camshaft bearing cap bolts vary in length and head design and must be installed in their original positions. Camshaft bearing caps are not interchangeable and must be installed in their original positions or damage to the engine may occur.
    NOTE: The camshaft bearing cap with 3 bolts is located at the front of the LH cylinder head and at the rear of the RH cylinder head.
    NOTE: Lubricate the camshaft bearing cap bearing surfaces with clean engine oil prior to installation.

    Install the camshaft bearing caps and bearing cap bolts. Tighten in the sequence shown in illustration in 2 stages.

    • Stage 1: Tighten the camshaft bearing cap bolts one turn at a time, until finger tight.
    • Stage 2: Tighten to 10 Nm (89 lb-in).
      Fig 2: Identifying Camshaft Bearing Caps Bolts Tightening Sequence
      G08642990Courtesy of FORD MOTOR CO.
  3. NOTE: Lubricate the valve seal and valve stem with clean engine oil prior to installation.

    Using the Valve Stem Oil Seal Installer and the Valve Spring Compressor, install a new valve seal.

    • Repeat step to install all of the new valve seals.
      Fig 3: Installing Valve Seal Using Valve Spring Compressor And Valve Stem Oil Seal Installer
      G06394707Courtesy of FORD MOTOR CO.
  4. Position the valve, the valve spring and the spring retainer into the cylinder head.
    Fig 4: Locating Valve Spring And Spring Retainer
    G06395090Courtesy of FORD MOTOR CO.
  5. Install the Valve Spring Compressor Spacer between the valve spring coils to protect the valve seal from damage.
    Fig 5: Installing Valve Spring Compressor Spacer Between Valve Spring Coils
    G06394699Courtesy of FORD MOTOR CO.
  6. Using the Valve Spring Compressor, compress the valve spring and install the retainer keys.
    Fig 6: Compressing Valve Spring Using Valve Spring Compressor
    G06395092Courtesy of FORD MOTOR CO.
  7. Repeat the previous 3 steps and install all of the valves, valve springs, valve spring retainers and retainer keys.
  8. NOTE: LH shown in illustration, RH similar.

    Install the secondary timing chain tensioner and the bolts.

    • Tighten to 10 Nm (89 lb-in).
      Fig 7: Locating Secondary Timing Chain Tensioner Bolts
      G06395093Courtesy of FORD MOTOR CO.
  9. NOTE: LH shown in illustration, RH similar.

    Index the keyways on the camshafts to the 6 o'clock position.

    Fig 8: Locating Keyways On Camshafts At 6 O'Clock Position
    G06394688Courtesy of FORD MOTOR CO.
  10. NOTE: Timing marks must be at the 12 o'clock position or damage to the engine may occur.
    NOTE: LH shown in illustration, RH similar.

    Install the camshaft sprockets and the chain as an assembly.

    • Remove the lockpin from the secondary timing chain tensioner.
      Fig 9: Locating Timing Marks At 12 O'Clock Position
      G06394689Courtesy of FORD MOTOR CO.
  11. Install the Camshaft Holding Tool.
    Fig 10: Installing Camshaft Holding Tool
    G06394673Courtesy of FORD MOTOR CO.
  12. NOTE: RH shown in illustration, LH similar.

    Install the camshaft spacer, washer and bolt, and hand-tighten the bolt.

    Fig 11: Locating Bolt, Washer And Spacer
    G06395080Courtesy of FORD MOTOR CO.
  13. NOTE: RH shown in illustration, LH similar.

    Install the camshaft sprocket, washer and bolt, and hand-tighten the bolt.

    Fig 12: Locating Washer, Camshaft Drive Sprocket And Bolt
    G06395079Courtesy of FORD MOTOR CO.
  14. NOTE: RH shown in illustration, LH similar.

    Tighten the bolts in 2 stages:

    • Stage 1: Tighten to 40 Nm (30 lb-ft).
    • Stage 2: Tighten an additional 90 degrees.
      Fig 13: Locating Camshaft Sprocket Bolts
      G06394680Courtesy of FORD MOTOR CO.