Just took the motor pod apart since it wasn’t acting normal in the video I posted above. Alas, lots of water in there. Really not sure how, I use 2 o-rings in the front, petroleum jelly inside, silicone outside, then a layer of flex seal like tape. The wall between the mast clamp and the pipe I’ve tested to make sure is waterproof and it has a layer of silicone on top of it too.
The back of the motor pod I packed the inside of the gearbox sealmount with tons of petroleum jelly. Double lip seals, ceramic bearing. Very little vibration. Not sure what else I can do to accommodate this damn thing! Ha.