My first thought is water pump gasket. The water pump cover is quite large and there is a lot of potential for leaks
I would borrow or rent a pressure tester and use that to locate the leak. Basically, pressurize your cooling system and see where the coolant comes out.
I would borrow or rent a pressure tester and use that to locate the leak. Basically, pressurize your cooling system and see where the coolant comes out.