Checking ring to groove clearance
WARNING: This page is about a different car, the 2004 Volkswagen R32. However, it is still accessible from the selected car via links, so may be relevant.
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Special tools, testers and auxiliary items required
- Clean ring groove before checking.
| Piston ring |
|
Ring to groove clearance |
| |
|
New |
Wear limit |
| Compression ring |
mm |
0.04 to 0.09 |
0.15 |
| Tapered ring |
mm |
0.03 to 0.06 |
0.15 |
| Oil scraping ring |
mm |
0.02 to 0.06 |
0.15 |