Why is my fresh water pump squealing?

[StephenGwyn]

My engine is FWC, with the second pump run off the shaft on the front of the engine. I changed the impeller, which I do regularly, and put on a new belt, which I tightened carefully. Now I get this squealing noise anywhere above an idle. See the video.

Thoughts?

https://photos.app.goo.gl/fF5yPRENwJsrCfxf8

Only time this happened before was when the belt was worn and loose.

[tenders]

Belt...or bearing? Can you put the old belt back on to see if the problem goes away?

Is it possible the new belt is half an inch too long?

[StephenGwyn]

Did that. No change. Talk to me more about what the bearing might sound like.

SG

[ndutton]

Sounds like a bearing noise to me, the result of years of side loading and possible (I can't know for certain) over tightening.