water pump indicator - no water

[bellbuoys]

Just exhaust gas coming out of the water pump pee hole on 2004 50hp Johnson. I blew air through here and got bubbles underwater in water intake, so no obstruction - same outcome by putting finger over pee hole. Odd thing is that engine is not overheating. Any idea what's wrong here? Thoughts very much approciated.

 

[tashasdaddy]

Re: water pump indicator - no water

90 % blown head or exhaust gasket into the cooling system. not allowing water to come up. do to exhaust pressure.

 

[bellbuoys]

Re: water pump indicator - no water

Thanks, tashasdaddy. Boat runs fine, possibly suggesting the exhaust gasket more likely (?) but I will get compression test as well. Appreciate the input!

 

[5150abf]

Re: water pump indicator - no water

Ya, a compression test will tell the story but if you are getting exhaust out the pee hole you have a bad gasket somewhere.

Good thing is they are easy to change.

 

[bellbuoys]

Re: water pump indicator - no water

Issue resolved. It turns out the 2004 Johnson 50hp 4-stroke has an odd arrangement in that the pee discharge is dumped into the exhaust port. A cleanout wire can't get in the port and than up into the discharge outlet - you have to remove the lower engine cowlings and disconnect the hose. The fitting to which it attaches, not visible with cowlings on, filled with muck - could be mud daubers doing their thing. Easily cleaned, and I am now spewing water once again!