Crankshaft Rear Seal with Retainer Plate: Installation

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

NOTE: The primer is good for up to 30 days after it has been applied.
- Apply Loctite® 7649 Primer to the CKP sensor bore of the rear seal retainer plate.
- Allow the primer to dry for 2 minutes, making sure no other substance comes in contact with the primed surface.
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NOTE: If the rear crankshaft seal retainer plate is not secured within 4 minutes, the sealant must be removed and the sealing area cleaned. Failure to follow this procedure may cause future oil leaks.

Apply a 3.75 mm (0.147 in) bead of silicone gasket and sealant to the rear crankshaft seal retainer mating surface on the engine block.

Material: Motorcraft® High Performance Engine RTV Silicone / TA-357 (WSE-M4G323-A6)

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Tilt the seal retainer up and onto the rear of the cylinder block.

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Install the bolts and tighten in sequence.
Torque: Stage 1: 89 lb.in (10 Nm) Stage 2: 45 deg.

Fig 1: Crankshaft Rear Seal Retainer Plate Tightening Sequence
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Install the oil pan-to-rear main seal retainer plate bolts.
Torque: Stage 1: 89 lb.in (10 Nm) Stage 2: 45 deg.

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Lubricate the seal retaining plate bore and the seal lips with clean engine oil.
Material: Motorcraft® SAE 5W-50 Full Synthetic Motor Oil / XO-5W50-QGT (WSS-M2C931-C)

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Position the special tool onto the end of the crankshaft. Use Special Service Tool: 303-1250 Seal Installer, Rear Main.

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NOTE: The engine uses a rear seal that is unique from previous V-8 engines, note the orientation of the seal in the detail box in the graphic.

Slide the new crankshaft rear seal onto the tool. Use Special Service Tool: 303-1250 Seal Installer, Rear Main.

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Using the special tools, install the crankshaft rear seal. Use Special Service Tool: 205-153 (T80T-4000-W) Handle, 303-1250 Seal Installer, Rear Main.

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Apply a 2 mm bead of Loctite® 638 Sealer around the barrel of the CKP sensor 25mm (1 in) from the bottom end.

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- Install the CKP sensor and bolt.
  Torque: 89 lb.in (10 Nm)
- Connect the CKP sensor electrical connector.
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Install the crankshaft sensor ring and the engine-to-transmission spacer plate.

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Install the flywheel. Refer to: Flywheel .