Polo Mk4
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| Measure | Exhaust valve seat | |
| Ø a | mm | 32,4 |
| Ø b | mm | maximum reworking measure admissible |
| c | mm | 2,2... 2,6 |
| Z | lower edge of engine cylinder head | |
| 45° | valve seating angle | |
| 30° | upper correction angle |
Volkswagen Workshop Service and Repair Manuals
Camshaft seal - replace >
< Grind intake valve seats
Grind exhaust valve seat