Originally Posted by
roosm
Well they haven't been submerged, but I did have a lot of water in the bilge once late this season (not sure if I have checked the oil in V-drive or trans since or not).
I had a fatsack leaking since the vent-hose split and turned out the bilge pump was not working properly at that point since it sucked in some what I think was threads from the carpet.
Wouldn't have been enough to cover the unit completely, but maybe enough for it to flush over the unit when coming off plane.
I was wakeboarding and the driver didn't notice that the boat had a lot of water in it, not until I got to the swim-platform and noticed that it was sitting lower than usual did I find all the water in the bilge. I do have a second pump, but that wasn't (now it is) running with an automatic switch, so we got the water out, but it was running with more water than ever before in the bilge for probably at least 15 minutes.
I also heard that someone had ingested water to their transmission through some kind of vent-hole / breather cap or possibly through where the hoses for the external heat exchanger are mounted to the transmission. Also found a statement saying that if you get water past the Output shaft of the transmission it might suck water in past the seal since the seal is designed to let the unit suck in any oil that "leaks" out through seal to lubricate the shaft. I guess, if this is true, normally it would only suck in air and keep the oil in and could make sense since there is always an under pressure inside the transmission.