Measuring Piston-Ring Vertical Clearance
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2023 Porsche Panamera, 2022 Porsche Panamera, 2021 Porsche Panamera, 2020 Porsche Panamera, and 2019 Porsche Panamera. However, it is still accessible from the selected car via links, so may be relevant.
- Measure piston-ring vertical clearance.
Piston-ring vertical clearance
- 1.1 Clean the ring groove on the piston.
- 1.2 Fit piston ring on the ring groove of the piston > Piston-ring vertical clearance
- 1.3 Guide a feeler gauge into the gap between the piston ring and ring groove and determine the value > Piston-ring vertical clearance
| Piston ring | New in mm | Wear limit in mm |
|---|---|---|
| 1st compression ring | 0.03-0.07 | 0.15 |
| 2nd compression ring | 0.02-0.07 | 0.15 |
| Oil scraper ring | Cannot be measured | - |