Water leaking at exhaust clamp for manifold/Jpipe.

[Floridan surfer]

I have an 06 seadoo challenger.

Took the boat out for the first time this season. Everything was fine until I opened it up a little. Then I'd get the long warning beep- I assume it was overheating, but I had no indicator light on dash, beep only. As soon as I throttled down the beep went away. But if I throttle up again, even just over idle, I'd get the beep again. No beep at idle speed.

I ran with engine compartment open and noticed water spraying from between exhaust manifold and J-pipe at the clamp. At idle, only a moderate drip. The leak was more profound with throttle. The funny thing is it continued to leak after I shut engine off.

Any ideas why this would happen? Is the exhaust manifold only water jacket cooled like the J-pipe? Or does water get injected into the exhaust stream at the manifold?

 

[Floridan surfer]

The leak basically looks like this:

http://youtu.be/_OdI7G6RYVc

This is not my boat. It's something I found on YouTube, but that's about what it looked like.

 

[Floridan surfer]

And to answer my own question-yes it is a water jacketed manifold.

 

[pwgsx]

O wow, yea that has seen better days. Find a used one on ebay. Was it used in salt?

 

[Floridan surfer]

Yeah salt water. Picked one up for $75 on eBay.