Lincoln Navigator: Fuel Charging and Controls - Turbocharger - 3.5L EcoBoost (272kW/370PS) / Turbocharger Oil Supply Tube LH. Removal and Installation

Materials

Removal

NOTICE: The turbocharger compressor vanes can be damaged by even the smallest particles. When removing any turbocharger or engine air intake system component, ensure that no debris enters the system. Failure to do so may result in damage to the turbocharger.

NOTICE: Special attention needs to be given to the sealing ports for the oil feed, the oil drain, and the coolant lines, on turbocharged engines. The sealing ports must be totally clean and free from O-ring residue, have no damage to the sealing surface and the lines to ensure that there are no leaks or repeat repairs.

1. Remove the engine rear undershield.
   

1. Remove the left front fender splash shield.
   Refer to: Fender Splash Shield (501-02 Front End Body Panels, Removal and Installation).
   

1. Remove the charge air cooler intake pipe - left side.
   Refer to: Charge Air Cooler (CAC) Intake Pipe (303-12 Intake Air Distribution and Filtering - 3.5L EcoBoost (272kW/370PS), Removal and Installation).
   

1. Detach the harness retainer, then move the harness out of the way.
   

1. NOTE: The left turbocharger oil supply tube does not have a turbocharger oil supply filter.

   Remove the turbocharger oil supply tube bolts, then remove and discard the turbocharger oil supply tube.
   

Installation

1. Lubricate the new O-ring seals with clean engine oil.
   Refer to: Specifications (303-01 Engine - 3.5L V6 PowerBoost (CN)) .
   

1. 1. NOTICE: Do not use any brushes, damage to sealing area will result in leaks and possible internal turbo bearing damage.

      Use brake cleaner on a lint free rag to remove the O-ring residue out of the turbocharger and the engine oil filter adapter O-ring bores. Inspect the area for deep scratches and gouges. Install new components if necessary.
      
   2. Install the oil supply tube and the bolts, by simultaneously fully seating the oil supply tube into the turbocharger bore hole and the engine oil filter adapter bore hole flush to 2.5 mm off the mounting surface prior to tightening the bolts, then tighten the bolts in the following 2 stages.
      Material: Motorcraft® Metal Brake Parts Cleaner / PM-4-A, PM-4-B, APM-4-C
      Torque:
        Stage 1:  Tighten to :   89 lb.in (10 Nm)
        Stage 2:  Tighten an additional :   30°

1. Attach the harness retainer.
   

1. Install the charge air cooler intake pipe - left side.
   Refer to: Charge Air Cooler (CAC) Intake Pipe (303-12 Intake Air Distribution and Filtering - 3.5L EcoBoost (272kW/370PS), Removal and Installation).
   

1. Install the left front fender splash shield.
   Refer to: Fender Splash Shield (501-02 Front End Body Panels, Removal and Installation).
   

1. Install the engine rear undershield.
   

1. Check and top off the engine oil level as needed.
   Refer to: Specifications (303-01 Engine - 3.5L V6 PowerBoost (CN)) .