53 04 Measuring Rear Brake Discs; Measuring The Rear Brake Disc Lateral Runout - Porsche 996 TT Repair Manual

46 53 04 Measuring rear brake discs

Measuring the rear brake disc lateral runout

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Measuring the rear brake disc lateral runout
Includes: Measuring the brake disc thickness tolerance
• Measuring prerequisite: No tilt play at the wheel.
Note
• If necessary, provide the dial gauge holder with the Ate conversion set, order No. 03.9314 −
5510.3/01 (longer clamping wing screw and, possibly, also a bracket for the dial gauge).
Do not damage the expanding spring when fitting the dial gauge holder.
•
1. Mount the adapter plate 9510/1 on the wheel hub. Tightening torque of the wheel bolts (fastening screws):
130 Nm (96 ftlb.).
2. Insert dial gauge holder, e.g. Ate order No. 03.9314−5500.3/01, into the brake caliper, align it
and secure it by tightening the clamping wing screw. If the brake disc cannot be turned freely,
set the brake pads back a little.
3. Secure the dial gauge with some preload. Put the measuring tip against the largest diameter of the brake
surface.
4. Turn the brake disc and, when doing so, read off the lateral runout at the dial
gauge.
Note
46 53 04 Measuring rear brake discs 820