Water coming from midsection of a '95 25hp

[thecadman99]

Just bought this little motor and I'm having a problem with the cooling system.

I took the LU off today, and the waterpump seems to be decent. I greased it and reassembled it.

The motor starts fine but I barely get a few drops from the pee hole. (only ran it about 20 secs)Water was gushing out of the cutout (where you can see the shift rod).

I can blow in the top tube and hear air leaking out around the mid section of the motor (not up on the terminology sorry!)

I have the tools and the time, just not the talent!
Let me say a big THANK YOU for the help everyone here provides.

Suggestions would be appreciated

 

[GA_Boater]

Welcome aboard, cad. Was the water leaking before dropping the lower? If the leak started after reinstalling the lower, maybe the water tube isn't seated properly. Also, is the tell-tell hose clear? Bugs like to plug these hoses with mud.

And sort of a rule of thumb - Anytime time you open the pump, replace the impeller. It's cheap insurance.

 

[thecadman99]

Thanks for the reply GA-Boater.
It was doing the same thing before I dropped the LU to check the impeller and it looks like it needs to be replaced. I also found the water tube seal to be in bad shape, but I wrapped it in gorilla tape, just to see if I got any better circulation.

After a little reading, it looks like this motor has a thermostat. I never gave it a chance to warm up so maybe that is the reason I'm not getting any flow out of the pilot hole at the top (or just a few drops).

I'm going to remove the thermostat when I get home and see if I get a stream. This will hopefully tell me if I need to replace any of the top seals.
Here's a couple of pics of what I found::

And here's my boat- my first!

 

[GA_Boater]

Judging by the seals and what looks like a crack in the impeller blade at 3 o'clock/tip curling, a complete kit might be in order.

Is the tin boat a LoneStar?

 

[thecadman99]

Just for others reference, I replaced the blade, housing, and water tube seal. What was throwing me was that I didn't know that this motor has a thermostat , so no water was immediately coming out of the top pilot hole.

To check the cooling system, I took off the thermostat housing, removed the thermostat (which had a bug cocoon in it!) and tried the motor without that in place.
Result was a good flow of water up through the top of the engine.

Now that I knew everything was working I put the thermostat back in and let it idle to temp. Sure enough a nice stream started up when warm.

GA_Boater- The title on the boat just says a 1959 "Rex" boat, but I'm not sure what kind it is ??