Porsche 2012 911 GT3 CUP Technical Manual page 81

5.10.9. Setting the selector barrel
The axial play of the selector barrel is adjusted with the washer SW2. The
selector barrel play can only be checked with the cut-away housing
mounted.
Determine the depth of the cut-away housing used and also that of the
housing fitted and/or to be fitted.
The difference of the two depths should be taken into account when
selecting the washer SW2.
If the washer SW1 is changed the selector barrel play changes.
Selector barrel axial play: 0.03 – 0.05 mm
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