Water Pump not Pumping

[Abower94]

So I have been battling the water pump in my 2010 mercury 50 hp elpto outboard from the day I bought it used. Being a new boat owner I was not fully aware of how strong the stream your telltale should have. For the first few time I had it out water would more or less trickle out of the tell tale. After realizing this I ended up replacing the impeller and gasket and had the same results. I took it all apart again and blew water down there system through the thermostat housing also replacing the thermostat and gasket. I ended up finding a lot of small stones and debris. After doing all of this I now have no water coming out at all and the over heat alarm goes off ( continuous beep ). Completely lost here, any help would be appreciated

Thanks,
Andrew

 

[Scott Danforth]

pull the lower unit, flush out the crud from your water jacket, pump cavity, etc.

if your old impeller had pieces missing, find them in the motor and retrieve them.

 

[Abower94]

Is there filter before water pump?

I have a 2010 Merc 50 hp 2 stroke elpto outboard and have been struggling with my water pump. I was wondering if there is some sort of filter or screen at the intake on the lower unit before the water reaches the impellar?

 

[Scott Danforth]

there may be an intake screen, however it would just be small enough to keep rock out of the pump