Calling all Corsa Marine Exhaust owners

[QBhoy]

Hi guys
Just wondering how much water you get out your Corsa exhausts at tick over ?
I have the side exit captains call system and am occasionally concerned about the small amounts coming out at tick over.
When on the trailer and on the muffs, it's a dribble. I can see that most of it comes out the drive and understand that more comes out when the boat is in water and subject to increased water pressure.
Sometimes, even when in the water, the flow isn't great.
The boat is fairly quick and runs very high on top when wot. The water intake will be close to the surface and wondering if the impeller isn't lasting as long as normal.
I replaced it last year, but the flow seems the same and the outgoing impeller wasn't too bad.
The boat doesn't overheat, but it's just concerning when I see the amount that comes out the boats with the transom mounted exhausts.
Any thoughts ?

 

[Scott Danforth]

On the trailer and muffs, most water would be going out the idle relief ports

 

[QBhoy]

Fair enough. What about In the water. Was really wanting to know what other owners had noticed.
Thanks again.

 

[Bondo]

Ayuh,... I ain't got any, but water Does follow the path of least resistance,...

My Guess is, the water can't jump the down pipe to get to the side pipe,...

Got a picture,..??

 

[QBhoy]

Hi Bondo
I've attached two videos. One in the water was early last year. This is the most that's ever came out the pipes.
The second video was from the weekend there.
The third is in the water at the end of last year, not long after the impeller was replaced.
https://youtu.be/fSGu6rqGkzc
https://youtu.be/EmHwQ7X2Xrw
https://youtu.be/d-HZKTkSIh0
There isn't much water coming out, but doesn't overheat.
Perhaps I'm looking at others that only have straight through and no diverter for both options ??

 

[GaMatt72]

I get just a dribble also out of mine. Looking at the plumbing I would say it is normal as water will flow down better then up. It doesn't concern me as long as the temp stays with in the parameters.

 

[QBhoy]

Thanks gamatt72.
That's what I figure. Temp is always fine. Must be all good !
Thanks