I’m hoping you remember or still have this side by side. I have the same one and long story short had to replace gear that drives that water pump gear attached to the impeller. After much frustration I finally got a replacement installed and everything back together to the point I could fill it back up with coolant.
I noticed coolant leaking from this little nub in the picture. I noticed in your pictures a hose attached to it. I can’t find that hose, and don’t see it in any parts diagrams I can find online. Can you tell me where the other end of that hose goes?
thanks in advance