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AFCA Forums > Antique Fan Collectors Association > Post-1950 (Vintage) > GE F11A103 & F11S107 Motor Rebuilds: Fiber/Rubber/Metal Washers

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GE F11A103 & F11S107 Motor Rebuilds: Fiber/Rubber/Metal Washers  Rate Topic 
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 Posted: Wed Jul 26th, 2017 09:23 pm
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Mitchell Knigga
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Seeking advanced help from the extremely knowledgeable folks of the AFCA:


4 months ago, I began a total overhaul of two fans manufactured by General Electric, c. 1959-1963: a "Frost Grey" F11S107, and a "Blue Spruce" F11A103 (shown below). Tear-down, sanding, prepping, and paint lasted through the end of this past May, with motor rebuilds starting as the new aesthetic finishes were being applied (photos to come). In the course of tearing down the motors, I retained the original fiber, rubber, and metal washers within them, looping them onto zip-ties until needed for reassembly. Despite my best attempts, I cannot recall exactly how they were taken out of the motors. 

Returning to my workbench to reassemble the motors, I am wondering:

1. what the purpose of these spacers is, and where they should be located in each motors' reassembly?

2. are these washers reproduced for the restoration of fans such as these?, and 

3. should I bother with purchasing new washers, if they are produced?  


 Note: washers pictured on zip-tie are to the blue fan, those loose are to the gray fan.

I would greatly appreciate any insight in this regard, as the restoration has been stalled until I can figure this out further. I am leary of reassembling the motors with these washers placed to the best of my judgement. Thank you!












Last edited on Wed Jul 26th, 2017 09:27 pm by Mitchell Knigga

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 Posted: Thu Jul 27th, 2017 03:31 am
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Jeff Jones
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I know for certain the silver one with the little tab on it is the front most one...right be behind the little c clip that holds it all together. As for the others it can vary...mainly depends on where electrical center is for the rotor. If both have 4 fiber and the tabbed one...you could start with 2 and 2...meaning 2 on the back side of the rotor, 2 on the front, then the metal tabbed one, followed by the c clip then blade. The main purpose of them is to take up the slack in the rotor's back and forth movement...even if you are off electrical center a little but it will still run just fine. If you have a lot of back and forth play though you may want to add additional washers to get it to about 1/8 of an inch. Don't go too tight or it will seize when it heats up.

They do make all different size fiber washers...some can be bought at a h/w store, but McMaster Carr online has all the common sizes in 50 pack bags.
Oh and that little tab on the silver one faces outwards...meaning it faces the blade.  I made that mistake once of reversing that washer and the fan made a horrible rattle. 

Last edited on Thu Jul 27th, 2017 03:32 am by Jeff Jones

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 Posted: Sat Jul 29th, 2017 01:11 am
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Mitchell Knigga
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Thanks for the tips! I have seen the fiber washers at my local h/w store, but wasn't certain if their use was the same. I will keep a close eye on rotor shimmy and tolerances during reassembly. Thanks again. 

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