Re: 59 evinrude water problems(from previous posts)
OK, here's the deal: You have a gearcase that was used only for two years, 1969 and 1970. I was visualizing in my mind the gearcase that was used only one year, 1968, in my previous replies.
Up through 1968, there were two water tubes going up to the powerhead, one for water going up and the other to return the water to the pump for recirculation when the thermostat was closed. Those two tubes would be what goes into the two grommets in the pump housing.
Pre-1968 the water inlet from the lake to the pump was cast into the gearcase. In 1968, the water inlet from the lake was changed to a copper tube.
In 1969-70, the water inlet from the lake was still a copper tube, but the return tube from the powerhead was routed to a second grommet down at the lakewater inlet. That is the second grommet at the arrow that you are looking at. And it is why there is no tube for it because your return tube is still going to the water pump housing.
So, to wrap it all up, I would agree that if you just plug the grommet at the arrow, it should work. I have never personally run into the situation, nor tried it, but see no reason why it should not work by plugging the hole.
Hope this gets it all straightened out.
