Checking piston ring gap
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Special tools, testers and auxiliary items required
- Insert ring into lower cylinder bore at a right angle from above, approx. 15 mm from cylinder edge.
| Piston ring |
|
Gap |
| |
|
New |
Wear limit |
| Compression rings |
mm |
0.15 to 0.40 |
0.8 |
| Oil scraping ring |
mm |
0.25 to 0.50 |
1.00 |