BOCK FK40/655 Nr.of.Cyl.: 4 Displacement: 650 Swept volumet(1450 rpm): 56.5 Weight(kg):31 Connection: (Discharge line DV: 35/13/8 Suction line SV:35/13/8 ) Oil charge Ltr.: 2 Inertia moment of the driving unit(kgm2): 0.0043 Lubrication: Forced lubrication Oil pump: Rotation independent