T9.9 Question about water flow.

[Ward H]

Hello,
I have a 2013 T9.9XPHB. Just put it in the water for this season and noticed water coming out of 2 holes about 1/3 the way down the shaft housing, facing forward.
The two holes are side by side facing the pivot housing. Look to be embossed, meaning there is a raised ridge around each hole. Might be about 1/4" holes.
The water flow out of the tater tail is strong. The water out of these two holes is a strong trickle at idle but high higher throttle is more like an open end garden hose.
The marina mechanic and yard owner are not sure if it is a problem or not and believe as long as it has water coming out of the tater tail and is not overheating it should be OK to use.

I had let it warm up for about 15 minutes before noticing the water flow and I really need to hang over the transom to see it so I am not sure if it did this last year or not. I did motor from the launch lift to the slip so the OB run about 1/2 hr with no indication of any problems.

I will be going down later today to try to get a pic but for now here is a stock photo showing the area I am talking about.

Thanks,
Ward

 

[DangarStu]

This doesn't sound right to me. I wouldn't want salt water (or even fresh) constantly shooting towards the pivot housing. There is normally a small amount of water that comes out an exhaust outlet above the water line, but it normally faces backwards and isn't very much at all with the bulk going out through the prop. It is possible that the muffler isn't sealed properly to the powerhead but I'm not familiar with this exact outboard and it seems very new to be having that type of problem.

Stuart

 

[Ward H]

I spoke to the dealer yesterday morning.
Yes, the water coming out of these two forward facing ports is overflow due to the water pump pumping more water than can be passed through the cooling system.
It is also normal to see some spitting out of the port at the rear of the OB just under the cowling clamp as you mentioned. This is an exhaust relief valve and since it is a wet exhaust system, it may spit a bit.

He also confirmed that the tell tale water flow is after the cooling system so as long as that flow is strong everything is good.
I wasn't sure about that, just knew if it stopped there was a problem.

Someone on another forum found a cooling water pathway diagram for me so I attached that and the two photos I got of the holes I am talking about.

Thanks for the help.

 

[Ward H]

Stuart,
Just wanted to add that on another forum an owner of a 2012 T9.9 reported he didn't see water coming from that area but two others with "new" T9.9s said they both noticed the same thing I did.
Maybe something new for the 2013 model year on these OBs?

 

[DangarStu]

That is possible, or maybe their impellers have worn out a bit and the pressure valve never opens.

Stuart