toolfrk

[toolfrk]

We have a 25 hp. Mercury with unknown history. We replaced the impeller and have started the motor and get no stream of cooling water. The old impeller was missing the fins . Motor was run in salt water. So my question is ,are the fins broken up and clogging the cooling system ? If so , what is the best way to proceed?

 

[jetwhine]

Re: toolfrk

Try running a piece of weed wacker line up through the telltale and see if it is clogged. You can also try some compressed air through the same hole. I had the same type of problem with mine after impeller change. The shop air did the trick while I had the engine running. My telltale was clogged with salt and I cleaned it out. My motor does not have a T stat so it takes about 5-10 seconds for water to come out of the telltale. Hope this will get you going.

 

[jetwhine]

Re: toolfrk

If this does not work then maybe drop lower unit and blow compressed air through telltale to try to unlodge any debris that might be stuck inside of motor.