Sie sind nicht angemeldet.
Dieser Beitrag wurde bereits 1 mal editiert, zuletzt von »DirtyBear« (19. Januar 2021, 02:23)
If you look at D5 impeller you can see a thin opening in the center, so trapped bubbles will leave the bearing when the pump is off. Meaning pump has been oriented up top or side, or in its recommended orientations.Micro bubbles trapped around the bearing?
Dieser Beitrag wurde bereits 2 mal editiert, zuletzt von »DirtyBear« (21. Januar 2021, 01:54)
Could it be because of the very daring question?
Would you also ask a car mechanic, my car clacks "clack, clack, clack" what is that?
Here all information is missing, which would perhaps make a solution possible, or also only a thought beginning would give.
Without information about the pump top, changes in the noise at different speeds, the coolant used, etc., it is not possible to find a solution.
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