Porsche 911 GT3 R 2012 Technical Manual page 31

3.8.7. Removing and fitting the crankshaft seal – crankshaft side
3.8.7.1. Special tools
3.8.7.2. Removal
Porsche Motorsport recommends use of the following special tools to
remove and fit the flywheel side crankshaft seal:
Pressure pad:
Seal extractor jig:
1. Drill two holes (Ø 2,5 mm), 180° opposed from one another, into the
metal ring of the crankshaft seal. Never lever out the seal!
2. Screw the threaded end of a commercially available slide-hammer
alternatively into the holes and extract the metal ring evenly.
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