Combustion engine having a cylinder crankcase, with a cylinder head and with a cooling-water circuit and method for separately cooling the cylinder block and the cylinder head, with a cooling-water circuit and a common cooling water pump

Combustion engine having a cylinder block 2 and a cylinder head 3, with a cooling water circuit with a cylinder head 3, between an inlet opening 8 and one outlet opening 9 extending formed first cooling water passage and having a separated therefrom in the cylinder crankcase 2 between an inlet opening 10 and an outlet opening 11 extending formed second cooling water passage, and having disposed in the cooling water circuit common cooling water pump 12, in which a third cooling water passage 18, the outlet opening 9 connects the first formed in the cylinder head 3, the cooling water passage with the inlet opening of the cooling water pump 12, wherein a fourth cooling water passage 19, the outlet opening of the cooling water pump 12 with the inlet opening 10 of the second formed in the cylinder crankcase 2 cooling water channel for forwarding the cooling water from the first connects to the second cooling water passage.