1926 super six water pump

Unknown

Hi All

My 26 Hudson Super six is overheating. The radiator flows water freely. And it runs strong so timing is not the issue. I suspect the water pump may be clogged or damaged due to the fact that the lower radiator hose connector that is bolted to the bottom of the radiator is rusted badly and pieces are missing.

Question is how do I remove the pump. It is obviously gear driven from the crank in the front and the back has the generator.

Any help or advise would be greatly appreciated

Frank