11 12 Cylinder head with lid N20/N26 B20
CYLINDER HEAD AND CYLINDER HEAD COVER SPECIFICATION
| Cylinder head height: Original dimension | mm | 112.5 ± 0.05 |
| Machining limit | mm | 112.2 ± 0.05 |
| Valve guides are not available as replacement parts. | ||
| Inner diameter of installed valve guide | ||
| Original intake valve | mm | 5.00... 5.01 |
| Original exhaust valve | mm | 6.00... 6.01 |
| Tilt clearance, maximum (wear between valve and valve guide) | mm | cannot be measured |
| Bearing of camshaft | ||
| Guide bearing intake camshaft (width) | mm | 18.90... 18.93 |
| Guide bearing eccentric shaft (width) | mm | 33.51... 33.55 |