Measuring Front Brake Disc - Lateral Runout

1. 1.1 > 9510/1 - Adapter plate-1-  must be fitted on the hub of the brake disc -3-  .
2. 1.2 Screw in and tighten wheel bolts -2-  .

   > Tightening torque 160 Nm (118 ftlb.) 

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Adapter plate on wheel hub

Information 

The front face of the wheel hub must not be corroded.

The front face of the wheel hub must be cleaned using a fine emery cloth if necessary.

1. 2.1 Secure dial gauge -1-  with ball joint arm from > Nr.147-1 - dial gauge set with ball joint arm  at a suitable position on the wheel suspension.
2. 2.2 Adjust dial gauge -1-  from > Nr.147-1 - dial gauge set with ball joint arm  so that the dial gauge is touching the outer edge of the brake disc -2-  with slight preload.
3. 2.3 Set dial gauge -1-  from > Nr.147-1 - dial gauge set with ball joint arm  to zero, turn the brake disc -2-  at the > 9510/1 - adapter plate-3-  slowly by one full turn and check the deflection of the dial gauge -1-  .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Dial gauge on brake disc

Measure lateral runout of the wheel hub.

Maximum lateral runout of brake disc:  > Measured value 0.06 mm