Version: 16.12.2014 - Porsche 2015 911 GT3 Cup Technical Manual

Measurement process
Put the transmission in an upright position
Put magnetic disc (Figure 2.9.5.4) (5 mm) no. 28 on the pinion shaft head (bevel
gear). Put measuring plate (1) (20 mm) no. 23 on the gearbox housing. With the
depth gauge (2), measure the distance (green arrow in the diagram) e.g. 132.98
mm. This value corresponds to the measurement actually taken and must be
compared with the measurement calculated above.
133.002 mm -132.98 mm = 0.022 mm (difference) i.e. the measurement is not
within the tolerance and disk P1 must be exchanged.
Tolerance = 0.00 to +0.02
The adjusting disk P1 is inserted between cylinder roll bearing and four-point bearing
(see Figure 2.9.5.3.) Observe the assembly of the pinion shaft in 2.9.5. The basic P1
disk used in chapter 2.9.5 is then replaced with the calculated P1 disk.
Subsequently repeat the measurement process
NOTE
Loosening the pinion shaft nut
Remove the cutted gear housing
Remove the pinion shaft
After correctly adjusting the pinion shaft position, the process for the assembly of the
retaining frame described in chapter 2.9.4 must be repeated.
Finally tighten the retaining frame of the pinion shaft (3) with nuts (2) and flathead
screw (1) with 33 Nm (24.3 ft-lb) and use Loctite 270

Version: 16.12.2014

During the loosening of the pinion shaft, the auxiliary
housing must always be tightened firmly. The bearing
could be damaged otherwise .
Powertrain
2.9.6.3
2.9.6.4
2.9.6.5
911 GT3 Cup (991)
MY 2015
97