11 12 Cylinder Head with Valve Seat Cover N20/N26 B20
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. 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 | ° | 35 |
| Correction angle: Inner, exhaust valve | ° | 60 |
| Correction angle: Inner, intake valve | ° | 65 |
| Valve seat width: Intake | mm | 1.25+0.2 |
| Valve seat width: Exhaust | mm | 1.65+0.2 |
| Ø theoretical valve seat | ||
| Valve seat surface: Outer diameter, intake | mm | 30.4+0.1 |
| Valve seat surface: Outer diameter, exhaust | mm | 26.6+0.1 |