Quote:
Originally Posted by SouthArk370Z
I don't have any experience with centrifugal blowers but have worked on a lot of liquid cent pumps. If that shaft is attached to the impeller, it shouldn't have any axial movement. Axial movement will affect the bowl-to-impeller clearance causing a loss of efficiency or contact between the two parts.
The self-healing thing has me confused. Maybe a cracked retainer?
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Wish I was convinced it was actually self-healed.
At the very least it's going to have to come apart for inspection and see what's up. It's connected to the impeller via gears, yes.