Patent ID: 8667943

Claim:
An internal combustion engine, comprising a cylinder head and a cylinder block, with a crankcase being fixed to the cylinder block, and with at least one mass balancing shaft being held in the crankcase, with at least one bearing bore for the mass balancing shaft being formed by a flanged bush which is fixed in the region of a face side of the crankcase, especially screwed onto the same, wherein when seen in the direction of the axis of the crankshaft, a first pin which is arranged in a borehole and arranged as an alignment pin is positioned in a region of a face side of the crankcase on a straight connecting line between an axis of the mass balancing shaft and an axis of the crankshaft, wherein the flange bush can be pivoted about the first pin, with the first pin being arranged in the crankcase and the borehole in the flanged bush.