Checking Piston-Ring End Clearance
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2018 Porsche Cayenne, 2017 Porsche Cayenne, 2016 Porsche Cayenne, 2015 Porsche Cayenne, and 2014 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
- Slide the piston ring at a right angle to the cylinder wall from above until it is approx. 15 mm away from the edge of the cylinder.
- Use a piston with no piston rings to slide it in.
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
| Piston Ring |
New mm |
Wear Limit mm |
| 1st Compression Ring |
0.20... 0.30 |
0.80 |
| 2nd Compression Ring |
0.50... 0.70 |
0.80 |
| Oil Scraper Ring |
0.25... 0.50 |
- |