Cayenne GTS (9PA) V8-4.8L (2008)
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Piston ring designation
4. Fit piston rings. Using the piston ring pliers, insert the middle piston ring into the second ring groove in such a way that the inscription TOP is
facing the piston crown. Insert the top piston ring into ring groove 1 in such a way that the inscription TOP is facing the piston crown.
5. Check that the piston rings are correctly seated and positioned. Make sure that the oil scraper spring is inside the oil scraper ring. In the case of the
piston ring in ring groove 2, the inscription TOP must point to the piston crown. The top piston ring must be installed in such a way that the
inscription TOP is facing the piston crown. The gaps in the individual piston rings must always be offset by 120°.
6. Fit a piston-pin circlip. To do this, insert the piston-pin circlip into the ring groove of the piston pin eye so that the ring gap is offset with respect to
the piston crown (6 or 11 o'clock position). Press this end into the ring groove with your thumb -1-.
Piston circlip
7. Lever the piston circlip into the ring groove using a small screwdriver while continuing to press it down.
Inserting the piston circlip
8. If the piston circlip does not slide into the ring groove right away, press the second gap end of the piston circlip into the ring groove. Ensure
correct installation seating.
