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Posted by: pgollender May 23 2017, 08:23 PM

Cleaning and painting my impeller fan and noticed a little counter-balance weight pinned in the front. Factory job or P.O. attempt to balance the fan ?
All the blades are intact, no broken fins.

Posted by: rgalla9146 May 24 2017, 06:13 AM

Probably original, I've seen bigger pieces of rod than that used in the same way.

Posted by: McMark May 24 2017, 06:41 AM

And now your fan is unbalanced.

Posted by: 6freak May 24 2017, 06:50 AM

just gonna say I hope you marked some how ,it needs to go back together the same way it came apart and still may need to rebalance....easy fix! imo good luck

Posted by: pgollender May 24 2017, 07:48 AM

Nope: Previously marked and put back in original holes.

Posted by: bbrock May 24 2017, 08:51 AM

Do these have to be balanced at a machine shop? I have one I took apart thirty years ago and THINK I was careful to put it back together properly. But I would like to make sure before putting it back in service.

Posted by: pgollender May 24 2017, 09:16 AM

You can do a simple static balance that will get you close,but not as good as a dynamic balance. Luckily these little fan don't have a lot of rotating weight.: Get one of these nose cones on the video and don't cut but add:
https://www.youtube.com/watch?v=uCV9rGVprEses