Exactly how much water pressure should my 1973 mercury 650 have?
I am running about 1psi at idle & 6psi @ 5200 rpm. I have reduced the size of the pee hole and this helped only .5psi. I have a new upper, lower pump housing, spacer plate and impeller.
I am running about 1psi at idle & 6psi @ 5200 rpm. I have reduced the size of the pee hole and this helped only .5psi. I have a new upper, lower pump housing, spacer plate and impeller.
