Jim, two thoughts in the event that soap (or grease) and brute force won't do.
Maybe there's enough meat on that fitting to polish it down a bit, taking down the ribs without compromising the strength?
Or the opposite, have a shop fill it and shim it out, so it fits the 2" hose, and get that.
I wish someone could magically invent an inductively coupled electric motor/prop, so we could just stop making holes in otherwise watertight hulls...I know, all it takes is money.(G)
Maybe there's enough meat on that fitting to polish it down a bit, taking down the ribs without compromising the strength?
Or the opposite, have a shop fill it and shim it out, so it fits the 2" hose, and get that.
I wish someone could magically invent an inductively coupled electric motor/prop, so we could just stop making holes in otherwise watertight hulls...I know, all it takes is money.(G)