[C38] [External] Re: Spinning water pump shaft and no spinning impeller

[Bruce Liese]

Bruce S. Liese
s/v Freudian Sloop III

________________________________
From: Listserve <listserve-bounces at catalina38.org> on behalf of Max soto <maxsoto at gmail.com>
Sent: Thursday, February 3, 2022 2:18 PM
To: Catalina 38 Listserve <listserve at catalina38.org>
Subject: [External] Re: [C38] Spinning water pump shaft and no spinning impeller

Hi Pierre, sounds to me like it was just a bad impeller… That might also happens if the pump is dry…
Years ago I replaced my impeller just for maintenance, and half an hour later noticed some white smoke on the exhaust and no water was coming out. Checked the impeller and there wasn’t a single blade attached. Was totally destroyed. So… it happens 🤷🏻‍♂️
Regards,
Max Soto A.
+506-8312-1367
Alajuela, Costa Rica

> On Feb 3, 2022, at 12:12, Pierre Patino <pierre.patino at gmail.com> wrote:
> 
> Hi All
>
> Five months ago I replaced the raw water pump and when I turned on the engine after a couple of months of inactivity I noticed that no water was coming out of the exhaust port.
> I concluded that the new impeller was not spinning.
> I opened up the pump cover and saw that the shaft was indeed spinning but not the impeller.
>
> I replaced the impeller with an older one that I had saved from a previous maintenance and this worked.
>
> Barring a manufacturing defect on the impeller's central keyed ring, what else could be wrong? The pump shaft looks OK (visually).
>
> The impellers are not cheap for some reason.
>
> Thanks for your suggestions.
>
>
>
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