upper housing compartment filliong with water

[batfish123]

Hello,

I have twin outboard Yamaha 300hp hdpi's. 10 minutes into my last trip out i noticed the starboard engine was not getting the proper power. Then the overhead alarm went off. I checked the raw water was flowing out of the side exit. The intake was clear. i put the engine out of gear and when i increased the rpms i noticed that water was filling the upper housing compartment. I immediately shut down the engine. and turned around back to the dock on my port engine. What is this symptomatic of?

something to note: the over heat alarm has recently been going off on both engines, only at very low idle. it lasts for about 60 seconds then turns off. water has always come out of the exit and its a mild temp to the touch.

thanks ion advance!

 

[99yam40]

Re: upper housing compartment filliong with water

Are you saying that you have not pulled the cowling and looked to see where the water is coming from? But expect us to try to figure it out without being able to look? It is easier to look than have a bunch of people guessing

 

[batfish123]

Re: upper housing compartment filliong with water

Are you saying that you have not pulled the cowling and looked to see where the water is coming from? But expect us to try to figure it out without being able to look? It is easier to look than have a bunch of people guessing

yes i opened the cowling. thats where i found the water. im not sure where its coming from its not obvious. does anyone have any ideas? im at a loss.

 

[GoogieMan]

Re: upper housing compartment filliong with water

Pull cowling off, put the ear muffs turn the water on and fire it up try replicate the problem, then see if you can find were it's comming from? check any hoses you may have etc for anyware it could be leaking from. that probley be a start