I remember mentioning this unit in a past thread, maybe with Dave Hall, anyway an aftermarket passive cooler, the faster you go the more water to cool the exterior of the outdrive. The skipper likes it, 6 cyl mercruiser BMW diesel
That is very similar to the one I run on mine.
How does it work? I see the intake tubes on the bottom facing forward. When running, water gets forced in the tubes and goes up to where? Maybe I'll Google/YouTube it because I don't understand the flow since the right and left of the drive is forcing water in the tubes but the tubes are joined at the top.
Oh. I understand now. There are holes at the top area.
https://youtu.be/iPOqoLWLwPg
Glad your video posted an explanation. I was thinking at first it was some kind of joke ... Jeff