Home › Forum › Ask A Member › 1956 Evinrude Big Twin #25022 water pump › Reply To: 1956 Evinrude Big Twin #25022 water pump
I gotta get my two cents in on this tread. Forgive me if I am outta line! You are working on a 1955 big twin correct? The parts page that Gary posted is different than the picture that Frank posted concerning the bleed hole. I have a ’51 and a ’53 big twins and the water that comes to the impeller gets sent to the power head through copper line in the back of the exhaust housing. I have not worked on the newer models. The copper line is not hooked to the impeller housing on my motors. There is a grommet that is probably whopped out in the back of the exhaust housing. The copper tube just hangs in the water passage. High pressure would make the water move to the power head but low pressure might not.
dale