Lower Unit Leaking

200ETLH - new to me

found water in the lower unit
So I drained it and refilled it. Planning to deal with it before winter,
Later I notice oil coming from a hole on the side of the lower unit.
Is this the pitot for the speedo?
Any ideas what the issue might be?

That is not the pitot hole for speedometer.

Upper arrow shows rubber hose for speedo pitot. I think.
I cannot find another hole in the lower unit that could be the pitot hole.
Lower arrow shows the hole in question. Notice the channel in the case leading to the hole is clearer in this picture.

(I have a Yami 90. Pitot is in the leading edge of LU about 2" above the prop shaft). Can't find it there on the 200.
Maybe it was on the leading edge and got epoxied over. Very fugly case on this thing.




A few questions.
If it is not the pitot hole, what is it for?
Where is the pitot hole?
Most importantly, before I drop the lower unit, is there anything I should know.
- I see the bolts going upwards into the exhaust housing. Including the one under the missing trim tab.
- ground wire and rubber hose to disconnect.
- how does the shift linkage disconnect?
- is there anything else to deal with? Water line?
- why is there a ground to the LU? Corrosion?