The UK quattro Network
The UK's mobile Audi 5-cylinder mechanic - 07833 654800, 24x7
Specialist in turbos, quattros, electrics and non-starts

Reworking inlet valves
| a | 37.0 mm diameter |
| b* | Maximum reworking dimension |
| c | Approx 2.00 mm |
| Z | Lower edge of cylinder head |
| 30° | Upper correction angle |
| 45° | Lower correction angle |

Reworking exhaust valves
| a | 32.4 mm diameter |
| b* | Maximum reworking dimension |
| c | Approx 2.40 mm |
| Z | Lower edge of cylinder head |
| 30° | Upper correction angle |
| 45° | Lower correction angle |