Porsche 911 GT3R 2010 Technical Manual page 36

6. Push the crankshaft seal onto the crankshaft flange by rotating the
insertion nut clockwise till the mounting dome butts completely on the
crankshaft flange mounting surface.
7.
8. Leave the assembly tools for one or two minutes in the final position,
the seal and sealing lip position themselves as a result.
9. Loosen the inserting nut and remove the hexagon-head bolt of the
inserting jig, remove the jig and unscrew the base plate
10. Check the fitted position of the seal, for this purpose measure the
distance at four points from the crankshaft flange to the level surface of
the steel ring (arrow).
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