Input Shaft Seal

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

SPECIAL TOOL

Courtesy of FORD MOTOR CO.

Installer, Driven Gear Oil Seal
308-427

MATERIAL SPECIFICATION

Item	Specification
Silicone Gasket and Sealant TA-30	WSE-M4G323-A4

Fig 1: Exploded View Of Input Shaft Seal With Torque Specification

Courtesy of FORD MOTOR CO.

INPUT SHAFT SEAL COMPONENTS

Item	Part Number	Description
1	7H469	Input shaft seal
2	-	Helical drive gear (part of 7251)
3	-	Helical idler gear (part of 7251)
4	-	Helical driven gear (part of 7251)
5	-	Power Transfer Unit (PTU) cover (part of 7251)
6	7251	PTU
7	W500425	PTU cover bolt (12 required)
8	7034	7034 Vent tube
9	W707702	Vent tube bolt
10	7H429	Intermediate shaft seal

Using the Driven Gear Oil Seal Installer, install the input shaft seal.

Fig 2: Installing Inner Input Seal Using Special Tool
Courtesy of FORD MOTOR CO.

NOTE: Make sure not to roll the inner input seal sealing lip when installing the drive gear.

Install the helical gears
1. Install the drive gear. Use a slight rotation to prevent damaging the inner input seal.
2. Install the idler gear.
3. Install the driven gear.
  
  Fig 3: Identifying Drive, Idler And Driven Gear
  Courtesy of FORD MOTOR CO.

NOTE: The Power Transfer Unit (PTU) cover and case sealing surfaces must be free of oil before applying new sealant.

Apply a 3 mm (0.11 in) bead of silicone sealant to the sealing surface of the PTU cover. Install the PTU cover and tighten the 12 PTU cover bolts in a star pattern.
Tighten to 32 Nm (24 lb-ft).
Install the vent tube and the bolt.
- Tighten to 14 Nm (10 lb-ft).
Install the PTU. For additional information, refer to POWER TRANSFER UNIT (PTU) - AUTOMATIC TRANSAXLE