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Home >> Lincoln >> 2021 >> Aviator Base, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Charging And Controls - 3.0L ECOBOOST >> Removal And Installation >> Direct Injection Fuel Rail RH >> Installation
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Direct Injection Fuel Rail RH: Installation

  1. NOTE: Do not lubricate the NEW lower Teflon® fuel injector seals.

    1. Install the Teflon® Seal Guide onto the fuel injector tip.

      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 Teflon® Seal Guide, using the Pusher Tool, slide the Teflon® seals along the Teflon® Seal Guide.

    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.

    4. Remove the special tools.

    GFD531319Courtesy of FORD MOTOR COMPANY
  2. NOTE: Make sure the Teflon® seal is fully seated in the groove on the fuel injector before sizing the Teflon® seal.

    1. Massage and warm the Teflon® seal with your fingers before the Teflon® seal sizer tool is installed. This will aid in installing the Teflon® seal sizer tool.
    2. NOTE: The beveled opening of the Teflon® seal sizer tool goes away from the seal.

      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.
    4. After one minute, turn the Teflon® seal sizer tool back 180 degrees and remove.

    GFD531320Courtesy of FORD MOTOR COMPANY
  3. NOTE: Make sure that NEW fuel injector support rings and NEW fuel injector O-ring seals are installed.

    1. Install the new fuel injector O-rings. The O-rings are pre-lubricated, NO ADDITIONAL lubricant is required.
    2. NOTE: The NEW the fuel injector support rings must be installed in the correct orientation with the wide surface area facing up against the fuel injector O-ring seals. Improperly installed support rings may cause the fuel system to leak.

      Install the NEW the fuel injector support rings.

    3. Inspect the inlet stopper, if it is damaged or comes off then discard the inlet stopper. The inlet stopper is not needed for proper function. Ensure that any debris from the inlet stopper are removed. If the inlet stopper is intact and undamaged do not remove the inlet stopper from the fuel injector.
    4. The upper side of the support ring has the wide surface area.
    5. Fuel injector support ring.
    6. The lower side of the support ring has the narrow surface area.

    GFD531321Courtesy of FORD MOTOR COMPANY
  4. Install the NEW fuel injector clips.
    GFD531322Courtesy of FORD MOTOR COMPANY
  5. NOTE: The anti-rotation finger of the fuel injector must slip into the groove of the fuel rail cup.

    Install the fuel injectors to the fuel rail.

    GFD531655Courtesy of FORD MOTOR COMPANY
  6. Connect the fuel injector electrical connectors.
    GFD531656Courtesy of FORD MOTOR COMPANY
  7. NOTE: Do not lubricate the new lower Teflon® fuel injector seals.

    Install the fuel rail, push down on the fuel rail above the fuel injectors, apply an even force to ensure that the fuel rail seats parallel to the cylinder head mounting bosses. Install the bolts and hand tighten until snug.

    Torque: Stage 1: Tighten the bolts one revolution at the time, in the sequence shown, until all of the fuel rail mounting brackets are seated flat on the cylinder head mounting bosses: : 1turn(s) | Stage 2: Tighten in the sequence shown to: : 18 lb.ft (24 Nm)

    GFD531657Courtesy of FORD MOTOR COMPANY
  8. Connect the fuel injector harness retainer.
    GFD531649Courtesy of FORD MOTOR COMPANY
  9. NOTE: In stage 4, if the torque required to tighten any flare nut on the new high-pressure fuel tube reaches or exceeds 37 lb.ft (50 Nm), then that high pressure fuel tube must be discarded and replaced with another new high-pressure fuel tube.
    NOTE: Calculate the correct torque wrench setting for the following torque using the Torque Wrench Adapter Formulas below.
    G00468730Courtesy of FORD MOTOR COMPANY
    NOTE: Make sure that a new high-pressure fuel tube is installed.

    Install the high-pressure fuel tube and bracket nuts, tighten the high-pressure fuel tube flare nuts and bracket nuts finger tight.

    Torque: Stage 1: Tighten the high-pressure fuel tube bracket nuts to, : 89 lb.in (10 Nm) | Stage 2: Tighten the high-pressure fuel tube flare nuts to, : 62 lb.in (7 Nm) | Stage 3: Tighten the high-pressure fuel tube flare nuts to, : 89 lb.in (10 Nm) | Stage 4: Tighten the high-pressure fuel tube flare nuts an additional, : 25°

    GFD531658Courtesy of FORD MOTOR COMPANY
  10. NOTE: When removing or installing the fuel injection pump noise insulator, spreading the openings will reduce the risk of damage.

    Install the fuel injection pump noise insulator.

    GFD531647Courtesy of FORD MOTOR COMPANY
  11. Attach the coolant hose retainer.
    GFD531646Courtesy of FORD MOTOR COMPANY
  12. With hybrid engine only, install the harness, then install and tighten the wire harness retaining nut.

    Torque: 106 lb.in (12 Nm)

    GFD531443Courtesy of FORD MOTOR COMPANY
  13. NOTE: In stage 3, if the torque required to tighten any flare nut on the new high-pressure fuel tube reaches or exceeds 55 lb.ft (75 Nm), then that high pressure fuel tube must be discarded and replaced with another new high-pressure fuel tube.
    NOTE: Make sure that a new fuel rail to fuel rail high-pressure fuel tube is installed.
    NOTE: Calculate the correct torque wrench setting for the following torque using the Torque Wrench Adapter Formulas below.
    G00468730Courtesy of FORD MOTOR COMPANY

    Install the NEW fuel rail to fuel rail high-pressure fuel tube and tighten the flare nuts finger tight, then tighten the flare nuts in the following 3 stages.

    Torque: Stage 1: 62 lb.in (7 Nm) | Stage 2: 89 lb.in (10 Nm) | Stage 3: Tighten an additional : 25°

    GFD531645Courtesy of FORD MOTOR COMPANY
  14. Install the intake manifold. Refer to: Intake Manifold .
  15. Install the cowl panel. Refer to: Cowl Panel .
  16. Connect the battery negative cable. Refer to: Battery Disconnect and Connect .
  17. Pressurize the fuel system. Refer to: Fuel System Pressure Release .
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