Lincoln Navigator: Engine - 3.5L EcoBoost (272kW/370PS) / Crankshaft Front Seal. Removal and Installation

Special Tool(s) / General Equipment

	303-102 Installer, Crankshaft Pulley
	303-1251 Installer, Front Seal TKIT-2006UF-FLM TKIT-2006UF-ROW
	303-409 (T92C-6700-CH) Remover, Crankshaft Seal TKIT-1992-FH/FMH/FLMH TKIT-1993-LMH/MH
Strap Wrench
Three Leg Puller

Removal

NOTICE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces, that enters the oil passages, coolant passages or the oil pan may cause engine failure.

1. Remove the A/C compressor belt.
   Refer to: Air Conditioning (A/C) Compressor Belt (303-05 Accessory Drive - 3.5L EcoBoost (272kW/370PS), Removal and Installation).
   

1. • Remove the crankshaft bolt and washer.
     
   • Discard the bolt.
     

1. Using a three leg puller, remove the crankshaft pulley.
   Use the General Equipment: Three Leg Puller

1. Using the special tool, remove and discard the crankshaft front seal.
   Use Special Service Tool: 303-409 (T92C-6700-CH)  Remover, Crankshaft Seal.

Installation

1. Lubricate the crankshaft front seal bore with clean engine oil.
   Refer to: Specifications (303-01) .
   

1. Using the special tools, install the crankshaft front seal.
   Use Special Service Tool: 303-102  Installer, Crankshaft Pulley. , 303-1251  Installer, Front Seal.

1. Lubricate the crankshaft front seal and the crankshaft pulley with clean engine oil.
   Refer to: Specifications (303-01) .
   

1. Using the special tools, install the crankshaft pulley.
   Use Special Service Tool: 303-102  Installer, Crankshaft Pulley.

1. Using the strap wrench, install the new crankshaft bolt and the washer and tighten in 3 stages.
   Use the General Equipment: Strap Wrench
   Torque:
     Stage 1:  37 lb.ft (50 Nm)
     Stage 2:  90°
     Stage 3:  60°

1. Install the A/C compressor belt.
   Refer to: Air Conditioning (A/C) Compressor Belt (303-05 Accessory Drive - 3.5L EcoBoost (272kW/370PS), Removal and Installation).
   

1. After completing the repairs, perform the Misfire Monitor Neutral Profile Correction procedure using a diagnostic scan tool.