Thanks Calhoun, You would think manufactures would make it easier to
pick the proper replacement parts. On the pump there is no identifiable
marks at all. I was able to find the correct pump by comparing pictures
on the net. It is a carter for a 350 Merc. I did notice that different
pumps had the window you speak of, however this one does not. I did not
see any others for my engine that would fit, so I assume I have the right
pump. I plan on changing it tomorrow. Is there any way to look at the
one I take off and tell if it is bad?

Thanks, Mr Ranger



"calhoun" wrote in
:

That's a lot of gas has to be the fuel pump. You would notice bad
engine performance if that much was getting past the rings.
Don't some marine fuel pumps come with 2 diaphragms with a sight glass
between the two so you can see if there is a leak. Are you sure you
are using a marine pump?