[C38] Changed seawater pump impeller fail

Max soto maxsoto at gmail.com
Tue Mar 2 23:32:43 EST 2021

Wow, honestly this is a though one..  years ago I had a persistent problem that there was no water in the exhaust, but it happened every now and then...  turned out it was a little piece of mud or barnacle that was trapped between the thruhull strainer and the barbed fitting on the other side of the valve.  That piece seemed to have life of its own. I blowed air through the hose and easily heard the bubbles coming out on the water, so I thought the intake was not the problem.  This piece was freely moving in the thruhull and clogged the intake every now and then. .. just my two cents.  
Max Soto A.
Alajuela, Costa Rica

> On Feb 8, 2021, at 20:44, Pierre Patino <pierre.patino at gmail.com> wrote:
> Hello All
> As the subject implies, I failed to do this properly I believe. I bought the replacement impeller parts and removed the old one. Removing the old impeller was easy. I cleaned the cavity (there was some salt buildup, my fault for waiting too long)  and when I proceeded to put the new impeller (looks exactly like the old one), I was unable to put the snap ring back. I'm not sure how important this is. In any case, I put the cover on with the new o-ring and started the engine. 
> Now I notice zero water coming out the exhaust. I feel something's buggered up and I'm not quite sure what the fastest way to troubleshoot is. Suggestions?
> By the way, the intake valve is open so I know it's not that operator error.
> I've made sure the impeller spins by running the engine and checking that the shaft has rotated as well as the impeller (taking the cover off and putting it back on).
> Just before I started on this project, water did come out of the exhaust so I know it "used" to work.
> I'm perplexed why I'm having such a hard time with the snap ring. I just did not want to try jam it in with excessive force. The last time I did this I had no trouble. Maybe I need to get yet another impeller kit?
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