Porsche 2012 911 GT3 CUP Technical Manual page 79

11. Determine the distance crown wheel – pinion
The washer H1 to be used is determined from the following factors:
Thickness H1 – setting dimension E – measured distance
+ thickness of previously fitted washer H1
If the measured distance is larger than the given setting dimension, a
thinner washer than the previously fitted washer H1 must be used.
Example: Setting dimension E = 70.30 mm; H1 fitted = 1.0 mm;
Measured distance = 70.50 mm
Thickness H1 = 70.30 mm – 70.50 mm + 1.0 mm = 0.8 mm
 The H1 washer to be fitted must have a thickness of 0.8 mm.
If H1 is changed H2 must be corrected accordingly.
12. Dismantle the gearbox and fit the calculated washer H1.
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