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Warm Water in the Hull

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nateccnn

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2007 RXP Supercharged. I have two identical skis.

This weekend when I pulled my ski out of the water, loaded onto the trailer, I opened the two plugs in the rear and one of the skis had quite a bit of water (over a gallon) and it was warm water. The other ski had zero water come out.

Neither ski has ever taken on water before this. Both skis stayed in the water for 2 days, tied off to my runabout ski boat in the evening. The boat was mored off-shore about 20 feet. Neither ski had any collision or incident but both were ridden hard all weekend.

Most logical place to look for the leak to me is the carbon seal. But does the fact that the water was warm make it exhaust or cooling related? The engine sits low in the hull so I'm thinking maybe that is what warmed the water.

I suppose the best way not find the leak is trailer it back to the lake and launch the ski into the water. I did try hooking the hose to the flush port and run the engine for a few minutes. Nothing leaked. I noticed though that the ski that had water in the hull also had a a lot of moisture on top of the engine in the front and rear. Makes me think it was either spraying water or it got sloshed around quite a bit. The area around the intercooler looked dry though and the hoses looked and felt to be sealed tight. But I did not perform a pressure test on it.
 
Can't say where the water comes from but after riding, I can guess that any water in the hull would be warm as the engine generates heat. How about tying the ski on the trailer and put the trailer in enough water to see if any water enters in? With one gallon over two days it could really be a slow leak though.
 
OK...so warm water is like a red herring?

I'll take it to the lake this weekend and finish troubleshooting. Just wanted to know if I need to rule out the carbon seal due to the warm water.
 
Like I say, any engine bay will be hot after engine running so I assume water coming from anywhere will be warm. Never happened to me on a 4-tec before (but I had an encounter with water on a 2-stroke).

One gallon is definitely not normal. On an older 2-stroke, I remember people talking about a cup or two at most. On my own 2018 ski, I barely see a drop of water in the bay, even after running.
 
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