6000 - is this okay or trouble?

[ErikS]

In a previous thread I mentioned that one of my 6000's made a humming noise when spooling up to full power & now that's it's a couple of weeks old I noticed that the noise has stopped (broken in)

...........but................

I noticed that it vibrates a bit when it hits full throttle (on a mag mount). I wondered if something had gotten inside so I took it apart for a cleaning. Nothing was inside as expected but I found that the outer magnet had a scoring that runs the entire length (vertically if looking into the unit). It's a really shallow defect in the magnet & given the "aqua bearing" I can't really see any issue with it.....but....

My question is this - the vibration doesn't bother me but will it harm the unit? (do I need to have it replaced?)

TIA

Additional note: the other one also on a mag mount (same tank wall etc) doesn't exhibit the behavior.

 

[rvitko]

The scratch is in the hole that the magnet rotor goes in or on the magnet rotor itself?

 

[ErikS]

In the hole, it's real minor - like less than a fingernail & it's just like an abberration in the finish. You can't even really see it, just feel it.

 

[rvitko]

I could smooth it out if you wanted to send it in. I don't see it being harmful in any way, likely a piece of sand caused it.

 

[ErikS]

Nah, long as it's not harmful. No sand in tank - one of those tiny snails?

Thanks for the re-assurance, just didn't want to keep it running if it was causing harm.