The only time it looks like it leaks is when the tilt is all the way up. The big thread like screw about 3/4 in thick screws into the back of the motor with the tube connected to that and run up the motor where I can't see it goes. Its in the slip now and when I tilt the motor it looks like a...
https://leadersrpmshop.com/mercury-marine-mercruiser-new-oem-drive-shaft-housing-90-degree-connector-22-433351/
When I lift my Mercury 90hp motor up there is a little oil or something leaking out of this??????