Porsche 996 TT, Repair Manual

Page: 879 / 2099

46 50 04 Measuring front brake discs
Measuring the front brake disc lateral runout
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Measuring the front 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 50 04 Measuring front brake discs 816