Valve Dimensions
WARNING: This page is about a different car, the 2015 Audi A6 Quattro, 2014 Audi A6 Quattro, 2013 Audi A6, and 2012 Audi A6. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Intake and exhaust valves must not be reworked. Only grinding is permitted.
| Dimension | Intake valve | Exhaust valve | |
|---|---|---|---|
| Diameter a | mm | 33.85 ± 0.10 | 28.0 ± 0.1 |
| Diameter b | mm | 5.98 ± 0.01 | 5.96 ± 0.01 |
| c | mm | 104.0 ± 0.2 | 101.9 ± 0.2 |
| α | ∠° | 45 | 45 |
WARNING:
- Worn sodium-filled exhaust valves must not be scrapped without first being properly treated.
- Using a metal saw, the valves must be cut in half between the shaft center and valve plate. While doing this, do not come into contact with water. After cutting open valves, throw not more than 10 at a time into a bucket of water. Then, move quickly away, because a sudden chemical reaction will occur during which the sodium is burnt away.
- The treated parts may then be discarded through conventional disposal channels.