Crankshaft Rear Seal with Retainer Plate: Installation

WARNING: This page is about a different variant/trim than selected.

Lubricate the crankshaft rear seal lips with clean engine oil.

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NOTE: The crankshaft rear seal and retainer plate must be installed within 10 minutes of applying the sealer and the bolts must be installed and tightened to 2-5 Nm (18-44 lb-in) within 15 of applying the sealer. Final tightening of the bolts must be completed within 60 minutes of applying the sealer. Failure to follow this procedure can cause future oil leakage.
1. Apply a 4.5 mm (0.18 in) bead of Motorcraft® High Performance Engine RTV Silicone to the crankshaft rear seal and retainer plate.
  Material: Motorcraft® High Performance Engine RTV Silicone / TA-357 (WSE-M4G323-A6)
2. Overlap the beginning and ending of the Sealant bead 15 mm (0.59 in).
  Material: Motorcraft® High Performance Engine RTV Silicone / TA-357 (WSE-M4G323-A6)
3. Apply 9 mm (0.35 in) beads of Motorcraft® High Performance Engine RTV Silicone that are 10 mm (0.40 in) in length as indicated in the graphic.
  Material: Motorcraft® High Performance Engine RTV Silicone / TA-357 (WSE-M4G323-A6)
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NOTE: The special tool must be inserted into the rear of the crankshaft seal to prevent the seal lip from rolling backwards.
1. Insert the magnetic base of the special tool into the rear opening of the crankshaft seal. Install Special Service Tool: 303-1250 Seal Installer, Rear Main.
2. The magnetic base of the special tool should protrude slightly from the front of the seal plate
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- Position the special tool and seal plate onto the end of the crankshaft. Use Special Service Tool: 303-1250 Seal Installer, Rear Main.
- Slide the new crankshaft rear seal and retainer plate onto the crankshaft and into the installed position.
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Install the crankshaft rear seal retainer plate bolts. Remove Special Service Tool: 303-1250 Seal Installer, Rear Main.
Torque: 89 lb.in (10 Nm)

Fig 1: Crankshaft Rear Seal Retainer Plate Tightening Sequence
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1. Install the CKP sensor and the stud bolt.
  Torque: 89 lb.in (10 Nm)
2. Connect the CKP sensor electrical connector.
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Install the heat shield and the nut.
Torque: 89 lb.in (10 Nm)

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Install the crankshaft sensor ring.

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Install the flexplate. Refer to: Flexplate .