Porsche 2012 911 GT3 CUP Technical Manual page 30

4. Drill two holes (Ø 2 mm) at the centre punched points
5. Screw the threaded-end of a commercially available slide hammer -1-
into the drilled holes. Carefully remove the seal -2- by swapping the slide
hammer alternatively between the drilled holes
6. Make a drill jig according to the following sketch (paper our thick
card). All dimensions in millimetre
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