Unfortunately - NO,
I did replace a few parts around the impeller housing and the ceramic rod, but to no avail !
I believe it must be in the motor somewhere, and I'm just going to replace the WHOLE thing with an Eheim as soon as I can, if the FLuval doesn't cave in first and force me to do it sooner. It is still filtering well and pumping well, just makes way to much noise.
Thanks for asking -
B