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Home >> Ford >> 2024 >> E-Transit Cutaway >> Repair and Diagnosis >> External Pages >> Different car >> Section 141 (Engine - 3.5L ECOBOOST (235KW/320PS)) >> Disassembly And Assembly Of Subassemblies >> Cylinder Head >> Assembly

Cylinder Head: Assembly

WARNING: This page is about a different car, the 2024 Ford Transit-350 HD, 2024 Ford Transit-350, 2024 Ford Transit-250, and 2024 Ford Transit-150. However, it is still accessible from the selected car via links, so may be relevant.

All cylinder heads 

  1. Install the valve.
    GFD838138Courtesy of FORD MOTOR COMPANY
  2. NOTE: Lubricate the valve stem seal with clean engine oil prior to installation.

    Using the special tool, install the valve stem seal.Use Special Service Tool: 303-470 (T94P-6510-CH) Installer, Valve Stem Oil Seal.

    Material: Engine Oil - 5W30 - Synthetic Blend (WSS-M2C946-B1)

    GFD838139Courtesy 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.
    GFD838136Courtesy of FORD MOTOR COMPANY
  4. Repeat the previous 3 steps for each valve.
  5. Install the spark plugs. Refer to: Spark Plugs .
  6. Note the fuel injector seal backup ring orientation for installation.
    GFD838140Courtesy of FORD MOTOR COMPANY
  7. NOTE: Use care when removing the lower Teflon® seals, not to scratch, nick or gouge the fuel injectors.
    NOTE: Do not attempt to cut the lower Teflon® seal without first pulling it away from the fuel injector or damage to the injector may occur.

    1. Pull the lower Teflon® seal away from the injector.
    2. Carefully cut and discard the lower fuel injector Teflon® seals.

    GFD838141Courtesy of FORD MOTOR COMPANY
    1. 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.
    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.
    GFD838142Courtesy of FORD MOTOR COMPANY
  9. 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.

    GFD838143Courtesy 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.
    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.

      Material: engine oil - 5W30 (WSS-M2C946-B1)

    GFD838144Courtesy of FORD MOTOR COMPANY
  11. NOTE: RH shown, LH similar.

    • NOTE: The anti-rotation finger of the fuel injector must slip into the groove of the fuel rail cup.

      Install the fuel injectors into the fuel rail.

    • Connect the fuel injector electrical connectors.

    GFD838145Courtesy of FORD MOTOR COMPANY
  12. Apply grease to the tip of the fuel injectors.

    Material: Grease - High Temperature (WSS-M1C267-A1)

    GFD838146Courtesy of FORD MOTOR COMPANY
  13. Apply grease to the top of the fuel injector bores.

    Material: Grease - High Temperature (WSS-M1C267-A1)

    GFD838147Courtesy of FORD MOTOR COMPANY
  14. NOTE: Make sure that new fuel rail bolts are installed.
    NOTE: Push down on the fuel rail above the injectors.

    Install the fuel injectors and fuel rail assembly into the cylinder head and install the new bolts.

    Torque: Stage 1: 8 Nm Stage 2: Wait 5s Stage 3: 14 Nm Stage 4: 30deg.

    GFD838148Courtesy of FORD MOTOR COMPANY

    RH cylinder head 

  15. Install the timing chain tensioner arm and timing chain guide pins.

    Torque: 10 Nm

    GFD838130Courtesy of FORD MOTOR COMPANY
  16. NOTE: Cylinder head equipped with cast iron exhaust manifold.

    Install the new the studs and the exhaust manifold gasket.

    Torque: 13 Nm

    GFD838149Courtesy of FORD MOTOR COMPANY
  17. NOTE: Cylinder head equipped with cast iron exhaust manifold.

    Install the exhaust manifold and the new nuts.

    Torque: Stage 1: 19 Nm Stage 2: 25 Nm

    GFD838150Courtesy of FORD MOTOR COMPANY
  18. NOTE: Cylinder head equipped with stainless steel exhaust manifold.

    Install the new the studs and the exhaust manifold gasket.

    Torque: 13 Nm

    GFD838151Courtesy of FORD MOTOR COMPANY
  19. NOTE: Cylinder head equipped with stainless steel exhaust manifold.

    Install the exhaust manifold and the new nuts.

    Torque: Stage 1: 19 Nm Stage 2: 22 Nm

    GFD838152Courtesy of FORD MOTOR COMPANY
    1. Install the stud bolt.

      Torque: Stage 1: 10 Nm Stage 2: 20deg.

    2. Install the new CHT sensor.

      Torque: 11 Nm

    GFD838153Courtesy of FORD MOTOR COMPANY
  21. Install the turbocharger coolant supply tube and fitting.

    Torque: 18 Nm

    GFD838123Courtesy of FORD MOTOR COMPANY

    LH cylinder head 

  22. Install the timing chain guide pin.

    Torque: 10 Nm

    GFD838122Courtesy of FORD MOTOR COMPANY
  23. Install the lift eye bracket and the bolts.

    Torque: 24 Nm

    GFD838121Courtesy of FORD MOTOR COMPANY
  24. NOTE: Cylinder head equipped with cast iron exhaust manifold.

    Install the new the studs and the exhaust manifold gasket.

    Torque: 13 Nm

    GFD838154Courtesy of FORD MOTOR COMPANY
  25. NOTE: Cylinder head equipped with cast iron exhaust manifold.

    Install the exhaust manifold and the new nuts.

    Torque: Stage 1: 19 Nm Stage 2: 25 Nm

    GFD838155Courtesy of FORD MOTOR COMPANY
  26. NOTE: Cylinder head equipped with stainless steel exhaust manifold.

    Install the new the studs and the exhaust manifold gasket.

    Torque: 13 Nm

    GFD838156Courtesy of FORD MOTOR COMPANY
  27. NOTE: Cylinder head equipped with stainless steel exhaust manifold.

    Install the exhaust manifold and the new nuts.

    Torque: Stage 1: 19 Nm Stage 2: 22 Nm

    GFD838157Courtesy of FORD MOTOR COMPANY
  28. Install the turbocharger coolant supply tube and fitting.

    Torque: 18 Nm

GFD838115Courtesy of FORD MOTOR COMPANY
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