11 14 141 Replacing Radial Seal In Lower Timing Case Cover (N73)

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NOTE:

For Special Tool identification, see ENGINE- SPECIAL TOOLS .

Special Tools Required:

11 9 410
11 9 420

Necessary Preliminary Tasks:

Remove hub for vibration damper. Refer to 11 23 031 REMOVING AND INSTALLING/REPLACING VIBRATION DAMPER HUB (N73) .

Special tool 11 9 410 for removing radial seal (1)

Set removal hooks (2) horizontally and install special tool 11 9 410.

Fig 1: Identifying Radial Seal Puller

Courtesy of BMW OF NORTH AMERICA, INC.

Turn removal hooks so that they grips behind radial seal (1).

Pull off radial seal (1) with screw (3).

Fig 2: View Of Puller In Radial Seal

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Radial seal (1) may only be supported with support sleeve (2). If the radial seal (1) is stored for more than six months without the support sleeve (2), its operational reliability will no longer be guaranteed. The sealing lip of the radial seal is highly sensitive and must not be kinked under any circumstances. Do not touch the sealing lip with your fingers. Remove support sleeve (2) from radial seal (1).

Fig 3: Identifying Radial Seal Support Sleeve

Courtesy of BMW OF NORTH AMERICA, INC.

Using central bolt (3) with special tool 11 9 420, install radial seal flush with timing case cover.

Fig 4: Installing Radial Seal Flush With Timing Case Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.