Since you all helped me so much last time I thought I'd try again!
I just rebuilt my lower unit (replaced the water pump and all the seals). The old pump was the original 1979 pump as far as I could tell. The impeller wasn't original of course. Anyways I had a heck of a time finding the right pump since numbers have changed multiple times over the years. The new model has no top seal on the pump like the old one does, but according to evinrude it's the replacement. After putting it all together I noticed a stream of water coming out the front of the exhaust housing that I was not getting previously. It's a hole that leads into the drive shaft tube. I'm getting good water from the pisser and the two exit holes at the top of the housing. Just never noticed this stream before. Is this normal?