Cayenne Turbo (9PA) V8-4.8L Turbo (2008)
Piston ring marking
2. When fitted, the gap in the oil scraper ring must be offset by exactly 180 degrees with respect to the gap in the oil scraper spring. Make sure that
the oil scraper spring is in the middle of the oil scraper ring.
Caution
Engine damage if piston rings overstretched!
-
Do not overstretch piston rings with piston ring pliers. Spread the piston ring until it just fits over the piston.
Information
The two compression rings have different strengths and can only be installed in the appropriate groove.
If the piston ring has the inscription TOP, this must point to the piston crown.
3. Insert piston ring into the piston ring pliers. Make sure that, when installed, the marking on the piston rings is pointing in the direction of the piston
crown -A-. Spread the piston ring until it fits across the piston.
Piston ring pliers on piston ring
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.