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Home >> Ford >> 2022 >> Transit Connect Titanium, Gas/Ethanol >> Repair and Diagnosis >> External Pages >> Different car >> Section 643 (Engine - 3.3L DURATEC-V6) >> Disassembly And Assembly Of Subassemblies >> Cylinder Head >> Assembly

Cylinder Head: Assembly

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

All cylinder heads 

NOTE: LH shown, RH similar.
  1. Install the valve.
    GFD553499Courtesy of FORD MOTOR COMPANY
  2. NOTE: Use valve stem seal pliers (such as BeTooll HW0107 or equivalent).

    • Lubricate the valve stem seal with clean engine oil.

    • Use commercially available valve stem seal pliers to install the valve stem seal.

    GFD553500Courtesy of FORD MOTOR COMPANY
  3. Using the special tools, install the valve spring, valve spring retainer and the valve collet. Use Special Service Tool: 303-300 (T87C-6565-A) Set, Valve Spring Compressor., 303-350 (T89P-6565-A) Compressor, Valve Spring., 303-1249 Valve Spring Compressor.
    GFD553497Courtesy of FORD MOTOR COMPANY
  4. Repeat the previous 3 steps for each valve.
  5. NOTE: If a spark plug is dropped, internal damage may result and the spark plug must be discarded. The use of a damaged spark plug may cause cylinder misfire resulting in engine damage

    Install the spark plugs.

    Torque: 133 lb.in (15 Nm)

    GFD553496Courtesy of FORD MOTOR COMPANY

    RH cylinder head 

  6. NOTE: Do not lubricate the new lower Teflon® fuel injector seals.

    1. Install the Arbor on the fuel injector tips. Use Special Service Tool: 310-207 Installer, Fuel Injector Seal Assembly.
    2. NOTE: Once the Teflon® seal is installed on the Teflon® Seal Guide, it should immediately be installed onto the fuel injector to avoid excessive expansion of the Teflon® seal.
      NOTE: Make sure that new lower fuel injector Teflon® seals are installed.

      Install the new Teflon® seals onto the Arbor, using the Pusher Tool (part of the Fuel Injector Seal Installer), slide the Teflon® seals along the Arbor.

    3. Using the Pusher Tool, slide the Teflon® seals off of the Teflon® Seal Guide and into the groove on the fuel injectors. Use Special Service Tool: 310-207 Installer, Fuel Injector Seal Assembly.

    GFD552852Courtesy of FORD MOTOR COMPANY
  7. NOTE: Install the fuel injectors into the cylinder head within 15 minutes of sizing the seals due to Teflon® seal expansion.
    NOTE: Make sure the Teflon® seal is fully seated in the groove on the fuel injector before sizing the Teflon® seal.

    1. Some Teflon® seal massaging with your fingers before the Teflon® seal sizer tool is installed will aid in installing the Teflon® seal sizer tool.
    2. Position the Teflon® Seal Sizer tool with the larger opening towards the Teflon® seal. Push while turning the Teflon® Seal Sizer tool 180 degrees. Use Special Service Tool: 303-1567 Sizer, Teflon Seal.
    3. Once the Teflon® Seal Sizer tool is installed, check and make sure the Teflon® seal is in the sizing portion of the Teflon® Seal Sizer tool. After one minute, turn the Teflon® Seal Sizer tool back 180 degrees and remove.
    4. After one minute, turn the Teflon® seal sizer tool back 180 degrees and remove.

    GFD552853Courtesy of FORD MOTOR COMPANY
    1. NOTE: The large diameter step of the backup ring must go up towards the new O-ring seal. Improperly installed backup rings may cause the fuel system to leak.

      Install the fuel injector backup ring.

    2. NOTE: Use fuel injector O-ring seals that are made of special fuel-resistant material. The use of ordinary O-ring seals may cause the fuel system to leak. Do not reuse the O-ring seals.
      NOTE: Do not lubricate the new lower Teflon® fuel injector seals.

      Install the new fuel injector O-ring seals. Lubricate the new fuel injector O-ring seals with clean engine oil.

    3. Install the new the fuel injector clip.
    GFD553501Courtesy of FORD MOTOR COMPANY
  9. NOTE: The fuel injectors are held in by the O-ring seal only.

    Install the fuel injectors into the fuel rail.

    GFD553502Courtesy of FORD MOTOR COMPANY
  10. Connect the fuel injector electrical connectors.
    GFD553492Courtesy of FORD MOTOR COMPANY
  11. NOTE: Do not lubricate the new lower Teflon® fuel injector seals.
    NOTE: Make sure that new fuel rail mounting bolts are installed.
    NOTE: Push down on the fuel rail above the injectors.

    • Install the fuel injectors and direct injection fuel rail assembly into the cylinder head. Tighten the bolts in sequence shown in 2 stages.

      Torque:Stage 1: 89 lb.in (10 Nm); Stage 2: 45 deg.

    • Connect the fuel injector electrical connectors.

    GFD553503Courtesy of FORD MOTOR COMPANY
  12. Install a new CHT sensor.

    Torque: 89 lb.in (10 Nm)

    GFD553504Courtesy of FORD MOTOR COMPANY
  13. Install the timing chain tensioner arm guide pin.

    Torque: Stage 1: 177 lb.in (20 Nm); Stage 2: 60 deg.

    GFD553489Courtesy of FORD MOTOR COMPANY
    • Install the new the exhaust manifold studs.

      Torque: 106 lb.in (12 Nm)

    • Install a new exhaust manifold gasket.

    GFD553505Courtesy of FORD MOTOR COMPANY
  15. Install the exhaust manifold and the new nuts.

    Torque: Stage 1: 168 lb.in (19 Nm); Stage 2: 18 lb.ft (25 Nm)

    GFD553506Courtesy of FORD MOTOR COMPANY
  16. Install the lift eye and the bolts.

    Torque: 18 lb.ft (24 Nm)

    GFD553486Courtesy of FORD MOTOR COMPANY

    LH cylinder head 

  17. NOTE: Do not lubricate the new lower Teflon® fuel injector seals.

    1. Install the Arbor on the fuel injector tips Use Special Service Tool: 310-207 Installer, Fuel Injector Seal Assembly.
    2. NOTE: Once the Teflon® seal is installed on the Teflon® Seal Guide, it should immediately be installed onto the fuel injector to avoid excessive expansion of the Teflon® seal.
      NOTE: Make sure that new lower fuel injector Teflon® seals are installed.

      Install the new Teflon® seals onto the Arbor, using the Pusher Tool (part of the Fuel Injector Seal Installer), slide the Teflon® seals along the Arbor.

    3. Using the Pusher Tool, slide the Teflon® seals off of the Teflon® Seal Guide and into the groove on the fuel injectors. Use Special Service Tool: 310-207 Installer, Fuel Injector Seal Assembly.

    GFD552852Courtesy of FORD MOTOR COMPANY
  18. NOTE: Install the fuel injectors into the cylinder head within 15 minutes of sizing the seals due to Teflon® seal expansion.
    NOTE: Make sure the Teflon® seal is fully seated in the groove on the fuel injector before sizing the Teflon® seal.

    1. Some Teflon® seal massaging with your fingers before the Teflon® seal sizer tool is installed will aid in installing the Teflon® seal sizer tool.
    2. Position the Teflon® Seal Sizer tool with the larger opening towards the Teflon® seal. Push while turning the Teflon® Seal Sizer tool 180 degrees. Use Special Service Tool: 303-1567 Sizer, Teflon Seal.
    3. Once the Teflon® Seal Sizer tool is installed, check and make sure the Teflon® seal is in the sizing portion of the Teflon® Seal Sizer tool. After one minute, turn the Teflon® Seal Sizer tool back 180 degrees and remove.
    4. After one minute, turn the Teflon® seal sizer tool back 180 degrees and remove.

    GFD552853Courtesy of FORD MOTOR COMPANY
    1. NOTE: The large diameter step of the backup ring must go up towards the new O-ring seal. Improperly installed backup rings may cause the fuel system to leak.

      Install the fuel injector backup ring.

    2. NOTE: Use fuel injector O-ring seals that are made of special fuel-resistant material. The use of ordinary O-ring seals may cause the fuel system to leak. Do not reuse the O-ring seals.
      NOTE: Do not lubricate the new lower Teflon® fuel injector seals.

      Install the new fuel injector O-ring seals. Lubricate the new fuel injector O-ring seals with clean engine oil.

    3. Install the new the fuel injector clip.
    GFD553501Courtesy of FORD MOTOR COMPANY
  20. NOTE: The fuel injectors are held in by the O-ring seal only.

    Install the fuel injectors into the fuel rail.

    GFD553507Courtesy of FORD MOTOR COMPANY
  21. Connect the fuel injector electrical connectors.
    GFD553482Courtesy of FORD MOTOR COMPANY
  22. NOTE: Do not lubricate the new lower Teflon® fuel injector seals.
    NOTE: Make sure that new fuel rail mounting bolts are installed.
    NOTE: Push down on the fuel rail above the injectors.

    • Install the fuel injectors and direct injection fuel rail assembly into the cylinder head. Tighten the bolts in sequence shown in 2 stages.

      Torque:Stage 1: 89 lb.in (10 Nm); Stage 2: 45 deg.

    • Connect the fuel injector electrical connectors.

    GFD553508Courtesy of FORD MOTOR COMPANY
  23. Install the timing chain guide pin.

    Torque: Stage 1: 177 lb.in (20 Nm); Stage 2: 60 deg.

    GFD553480Courtesy of FORD MOTOR COMPANY
    • Install the new the exhaust manifold studs.

      Torque: 106 lb.in (12 Nm)

    • Install a new exhaust manifold gasket.

    GFD553509Courtesy of FORD MOTOR COMPANY
  25. Install the exhaust manifold and the new nuts.

    Torque:Stage 1: 168 lb.in (19 Nm); Stage 2: 18 lb.ft (25 Nm)

    GFD553510Courtesy of FORD MOTOR COMPANY
  26. Install lift eye and the bolts.

    Torque: 18 lb.ft (24 Nm)

    GFD553477Courtesy of FORD MOTOR COMPANY
  27. Install ground strap and the bolt.

    Torque: 106 lb.in (12 Nm)

GFD553476Courtesy of FORD MOTOR COMPANY
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