11 12 Cylinder head with lid N54
WARNING: This page is about a different car, the 2016 BMW Z4, 2015 BMW Z4, and 2014 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
CYLINDER HEAD WITH LID SPECIFICATION
| Cylinder head height: Original dimension | mm | 112.00 ±0.05 |
| Machining limit | mm | 111.70 ±0.05 |
| Valve guides are not available as replacement parts. | ||
| Inner diameter of installed valve guide | ||
| Original intake valve | mm | 5.00...5.02 |
| Original exhaust valve | mm | 6.00... 6.02 |
| Tilt clearance, maximum (wear between valve and valve guide) |
mm | cannot be measured |
| Bearing of camshaft | ||
| Guide bearing (width) | mm | 22.00... 22.05 |