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Home >> BMW >> 2012 >> Alpina B7 >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Engine - Repair - F01/F02 >> 1123 Vibration Damper >> 1123010 Removing and installing/renewing vibration damper (N63) >> Necessary preliminary work

Necessary preliminary work

Release screw (1).

Tightening torque 11 28 1AZ .

Remove belt tensioner with idler pulley (2).

Fig 1: Identifying Screw And Idler Pulley
G06888537Courtesy of BMW OF NORTH AMERICA, INC.

Secure special tool 11 8 090 with three screws (1) to vibration damper.

Secure special tool 11 8 090 with belt tensioner bolt (2) to timing case cover.

Tightening torque 11 28 1AZ .

NOTE: A 3/4 inch tool is needed to release the central bolt.

Release central bolt on vibration damper.

Fig 2: Securing Special Tool 11 8 090 With Belt Tensioner Bolt To Timing Case Cover
G06888538Courtesy of BMW OF NORTH AMERICA, INC.

Secure central bolt with special tool 00 9 140 or 11 3 460 .

Position special tool 11 3 460 on special tool 11 8 090 .

Adjust special tool 11 9 453 on special tool 11 9 454 using clamping screw to 0° on scale.

Tightening torque 11 23 1AZ .

Fig 3: Adjusting Special Tool 11 9 453 On Special Tool 11 9 454 Using Clamping Screw To 0° On Scale
G06888539Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.