Lincoln Navigator: Fuel Charging and Controls - Turbocharger - 3.5L EcoBoost (272kW/370PS) / Turbocharger Coolant 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 tubes, 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 tubes to ensure that there are no leaks or repeat repairs.

1. Remove the turbocharger coolant return tube LH.
   Refer to: Turbocharger Coolant Return Tube LH (303-04B Fuel Charging and Controls - Turbocharger - 3.5L EcoBoost (272kW/370PS), Removal and Installation).
   

1. NOTICE: If the 2 piece turbocharger cooling tubes are separated or the rubber gasket is leaking, then the rubber gasket must be replaced.

   Remove the turbocharger coolant tube.
   

1. 1. Remove and discard the turbocharger coolant tube O-ring seal.
      

   2. NOTICE: Do not use a metal brush, damage to sealing area will result in leaks.

      Use brake cleaner and a nylon brush to clean. Clean the turbocharger coolant tube sealing surfaces. Inspect the sealing surfaces for debris or damage and make sure the retaining bracket is not bent, check for squareness of the O-ring area. Install new components if necessary.
      

1. NOTICE: If the 2 piece turbocharger cooling tubes were separated or the rubber gasket is leaking, then the rubber gasket must be replaced.

   If needed, then remove and discard the rubber gasket.
   

1. NOTICE: Do not use a metal brush, damage to sealing area will result in leaks.

   If needed, inspect and clean the turbocharger cooling tube sealing surfaces, using brake cleaner and a nylon brush to clean. Install new components if necessary.
   Material: Motorcraft® Metal Brake Parts Cleaner / PM-4-A, PM-4-B, APM-4-C

Installation

1. 1. If needed, then install the turbocharger cooling tube rubber gasket. After installing the new rubber gasket, lubricate with clean engine coolant.
      Refer to: Specifications (303-03 Engine Cooling - 3.5L EcoBoost (272kW/370PS), Specifications).
      

1. Install a new turbocharger coolant return tube O-ring seal. Lubricate the new O-ring seal with clean engine coolant.
   Refer to: Specifications (303-03 Engine Cooling - 3.5L EcoBoost (272kW/370PS), Specifications).
   

1. 1. NOTICE: Do not use a metal brush, damage to sealing area will result in leaks.

      Carefully use a nylon brush to remove the old O-ring residue, use brake cleaner to rinse the O-ring residue out of the turbocharger tube O-ring bore. Inspect the area for deep scratches and gouges. Install new components if necessary.
      
   2. Install the turbocharger coolant tube.
      Material: Motorcraft® Metal Brake Parts Cleaner / PM-4-A, PM-4-B, APM-4-C

1. Install the turbocharger coolant return tube LH.
   Refer to: Turbocharger Coolant Return Tube LH (303-04B Fuel Charging and Controls - Turbocharger - 3.5L EcoBoost (272kW/370PS), Removal and Installation).