coffeealex Unfortunately it’s exactly as expected. When I did the top level design for the MK1 Duetto, they didn’t do everything I asked for. The pump couldn’t be mounted horizontally, there wasn’t room
I recommended strongly the motor was caged with the pump at the bottom not the top to prevent exactly this problem, then the weep hole would have drained the water before it damaged the motor bearing. I even did them a detailed drawing, but Izzo refused to do this stating I was wrong and it wouldn’t be a problem….so I wrote the Wiki article I referred you to. I think finally in the MK4 they caged the pump motor combo and flipped it upside down.
Quick mill also did an upright motor pump config, but listened and had the motor at the top and the pump below as I specified for the Verona model. I also had them obtain a document from fluid-o-tech approving the pump in that configuration, as the only previous approval was for a Horizontal mount.
Run the motor without the pump head on and see how it sounds….if it’s noisy, replace it. If it’s not noisy, clean it up, whack a bit of Molykote around the spindle and hope for the best. The pump definitely requires replacement.
If after putting a new pump in the motor is noisy under load, then your going to have to replace it.