Up date on the cooling issue with my 1939 Pontiac. The classic car gods must of looked down on me tonight. I was able to remove and replace the water distribution tube by simply tugging on original with a coat hanger. Prior to removing old tube, pulled radiator, removed water pump, disassemble water pump and found it blocked with debris. Cleaned it up and removed and replaced water tube. Now I need to order gaskets for water pump. I had to remove small portion of the front grill.