Cylinder Head Machining
| Permissible Variation from Flatness of Mating Surface When New and After Machining The stock removal at the cylinder head and at the crankcase of an engine together must not exceed 0.5 mm. | in longitudinal direction | 0.08 Millimeter (mm) |
| in transverse direction | 0.00 Millimeter (mm) | |
| Peak-to-Valley Height of Cylinder Mating Surface | 0.006 - 0.014 mm | |
| Test Pressure with Air Under Water | 2 bar |