1112 CYLINDER HEAD TECHNICAL DATA (840i and 840i xDrive coupe/convertible/Gran Coupe sedan)
1112 TECHNICAL DATA OVERVIEW
| Check for cylinder head watertightness | ||
| Temperature of the cylinder head | 60°C | |
| Check for cylinder head watertightness | ||
| Testing pressure | max. 3.0 bar | |
| Cleaning the intake ports | ||
| Blast duration with walnut shell granules | Approx. 20 s | |
| Blast duration with pure compressed air for the complete blowing out of walnut shell granules | Approx. 10 s | |
| Cleaning the intake ports | ||
| Operating pressure | 6 bar... 8 bar | |
| Cross deviation from flatness | ||
| max. 0.05 mm | ||
| Longitudinal deviation from flatness | ||
| max. 0.10 mm | ||