11 12 Cylinder Head with Valve Seat Cover N51 B30
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2010 BMW 328xi, 2010 BMW 328i, and 2009 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.
CYLINDER HEAD WITH VALVE SEAT COVER SPECIFICATION
| Valve seat angle | ° | 45 |
| Correction angle: outer | ° | 15 |
| Correction angle: inner | ° | 60 |
| Valve seat width: Inlet | mm | 1.0+0.1 |
| Valve seat width: Exhaust | mm | 1.2+0.1 |
| Valve seat | ||
| Valve seat surface: Outside dia. inlet | mm | 34.2+0.1 |
| Valve seat surface: Outside dia. exhaust | mm | 29.0+0.1 |