Reworking valve seats
Courtesy of VOLKSWAGEN UNITED STATES, INC.
| Intake valve seat |
| a |
= |
26.2 mm dia. |
| b |
= |
Max. permissible reworking dimension 1) |
| c |
= |
1.5 - 1.8 mm |
| Z |
= |
Bottom surface of cylinder head |
| α |
= |
45° valve seat angle |
| β |
= |
30° upper correction angle |
| γ |
= |
60° lower correction angle |
| Exhaust valve seat |
| a |
= |
29.0 mm dia. |
| b |
= |
Max. permissible reworking dimension 1) |
| c |
= |
Approx. 1.8 mm |
| Z |
= |
Bottom surface of cylinder head |
| α |
= |
45° valve seat angle |
| β |
= |
30° upper correction angle |
| γ |
= |
60° lower correction angle |
1) Calculating maximum permissible reworking dimension. Refer to
Calculating maximum permissible reworking dimension .