11 12 Cylinder Head with Cover N63 B44
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2014 BMW Alpina B7L, 2014 BMW Alpina B7, and 2013 BMW Alpina. 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 | 134.00 ± 0.05 |
| Machining limit | mm | 133.70 ± 0.05 |
| Valve guides are not available as replacement parts. | ||
| Inside diameter of installed valve guide | ||
| Original inlet valve | mm | 6.0+0.012 |
| Original exhaust valve | mm | 6.0+0.012 |
| Tilt clearance, maximum (wear between valve and valve guide) | mm | 0.06... 0.112 |
| Bearing of camshaft | ||
| Guide bearing (width) | mm | 13.993... 14.035 |