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1B3-178 OM600 ENGINE MECHANICAL Height ‘A’ (Cylinder Head Surface - Cylinder Head Cover Surface) Minimum Height After Machining Permissible Unevenness of Parting Surface Permissible Variation of Parallelism (Longitud. Direction) Peak-to-Valley Height Valve Arrears ‘a’ Prechamber Protrusion Service Data In Longitudinal Direction In Transverse Direction Intake Valve Exhaust Valve 142.9 - 143.1mm 142.5mm 0.08mm 0.0mm Max. 0.1mm 0.0017mm 0.1 - 0.7mm 0.1 - 0.7mm 7.6 - 8.1mm FACING CYLINDER HEAD MATING SURFACE Preceding Work : Removal of prechamber Cylinder head pressure leakage test 1 Valve A Height of Cylinder Head B Longitudinal Direction C Transverse Direction a Valve Arrears |