11 12 Cylinder Head with Cover N52K B30
WARNING: This page is about a different car, the 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
CYLINDER HEAD AND CYLINDER HEAD COVER SPECIFICATION
| Cylinder head height: Original dimension | mm | 112.000 ± 0.050 |
| Machining limit | mm | 111.700 ± 0.050 |
| Valve guides are not available as replacement parts. | ||
| Inside diameter of installed valve guide | ||
| Original inlet valve | mm | 5.000+0.012 |
| Original exhaust valve | mm | 6.000+0.012 |
| Tilt clearance, maximum (wear between valve and valve guide) |
mm | 0.500 |