Valve Dimensions
WARNING: This page is about a different car, the 2009 Audi TT and 2008 Audi TT. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Intake and exhaust valves must not be refaced by grinding. Only lapping is permitted.
| Dimension | Intake valve | Exhaust valve | |||
|---|---|---|---|---|---|
| Short | Long | Short | Long | ||
| Dia. a | mm | 31.00 | 31.00 | 27.00 | 27.00 |
| Dia. b | mm | 5.96 | 5.96 | 5.94 | 5.94 |
| c | mm | 102.20 | 136.10 | 102.50 | 136.40 |
| α | ∠° | 45 | 45 | 45 | 45 |
WARNING:
Risk of injury if exhaust valves with sodium filling are disposed of improperly.
- Cut exhaust valve with sodium filling into 2 parts with a metal saw between shaft center and valve plate. While doing this, do not come into contact with water.
- Throw at the most 10 such sawed exhaust valves in a bucket filled with water and step back immediately.
- When there is contact with water, a sudden chemical reaction occurs which burns the sodium filling.
- The treated parts may then be discarded through conventional disposal channels.