11 65 ... Removing And Installing/Replacing Radial Compressor Centrifugal Clutch (BMW ALPINA B7)

WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove radial compressor . See 11 65 035 REMOVING AND INSTALLING/REPLACING CHARGER (BMW ALPINA B7 RADIAL COMPRESSOR) .

Release screws (1) and remove belt pulley (2).

Installation:

Tighten screws crosswise.

Tightening torque: 9 Nm.

Fig 1: Identifying Screws And Belt Pulley

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Take off spacer ring (1).

Installation:

Align bores of spacer (1) to threaded holes of radial compressor.

Fig 2: Identifying Spacer Ring

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Press linings of centrifugal clutch (1) apart slightly and remove.

Installation:

First position one lining on one side, press apart slightly and then feed second lining into clutch housing.

IMPORTANT: Color markings (2) must point outwards!

Linings of centrifugal clutch (1) must be pushed into clutch housing of radial compressor up to stop!

Fig 3: Identifying Linings Of Centrifugal Clutch

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Measure lining thickness (1).

Wear limit is reached at a thickness of 2 mm and then the linings must be replaced.

IMPORTANT: Springs (2) must be inserted into the center bore (3) of the linings!

Fig 4: Identifying Springs

Courtesy of BMW OF NORTH AMERICA, INC.