Desperate in Houston! Need 58 Frigidaire Evaporator Motor Replacement or Rebuild

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jdwilson

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Jan 19, 2015
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14
Location
Houston
I'm in a jam. I bought this amazing FP-142-58 Frigidaire with the seller absolutely sure it was working. Well, the freezer blower motor is open on one winding. It is a sealed bearing unit made by Electric Motors and Specialties. It is a special mount with 4 pads held vertically and it was only used in this and the 1959 model. It mounts from the rear of the unit.

Nobody wants to rewind it because it isn't a big industrial motor! I've heard that someone came up with a sub with mods but have no idea what they used. Plus I'd really like to fix this one if I can. I can get the bad winding about 70% but don't feel confident that it will hold up.

The original part number was F6581978 superseded in 1959 by 6595223. Markings on back are
SP-L4T4
115V
CW
16 Watt
0.19 Amp

Any suggestions will be most appreciated!!!!!.. Joe[this post was last edited: 5/30/2018-18:47]
 
by the ratings given,seems this is a shaded pole"fart fan"type motor-does the fan blade/blower impeller mount against a flat hub via two small screws like a ~1962 FD or or 1960s-mid-80s WP evap fan with the Howard Industries motor ?
 
It is a sealed bearing 4 pole shaded. It has 4 rubber side mounts and mount s through back of cabinet. I posted some pics.
 
An idea

If you cannot find someone to re-wind it, you could bend two of those tabs down and just mount a conventional motor with rubber grommets on either side of the tab when you tighten it down to dampen vibration.

There are a few people around here that might have parts so hold out a week or so and see.
 
basicly just a standard unit bearing condenser/evap fan motor-except for the four threaded holes with the rubber mounts-might have to carefully drill and tap a replacement motor for those mounts..."16 watt"rating with .19A is odd:usually with these motors the "watts"is output power,but in this case,with that low amp rating,appears to be input consumption...A "2 watt"output fan motor might pull ~.19a.Evaporator fan versions of these motors might have special low temp oil.Pop machines use this style of motor for the evaporator
 
sorry things were so disjointed! I originally posted all the pics including the fridge on my PC but the pics didn't go through I guess. Then I was down in Galveston tonight responding on my phone and that was really a mess! Anyway, i think all the important pics have come trough except the refrigerator itself! So here it is for inspiration. Again, I intended all these to be attached to the original post. And thanks for all the suggestions so for! oh! Also.... Mine is stamped CW. But is that CWLE or CW from the shaft end? It seems the reference might have changed in the past 60 years!

jdwilson-2018053100043109534_1.jpg
 
Perhaps?

Something like this? Shaft diameter is 1/8" and can be both ccw or cw rotation. And gives you some good mounting options.

What is your shaft diameter on the old motor?

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Mine has a .25" shaft but something like that might work but I'm not sure how I would insulate it. It would mount outside the cabinet. The front of the old motor acted as the seal to the membrane isolating the interior. I guess I could somehow seal the membrane to the collar on this. But it is the closest I've seen to a solution! Thank You!!!
 
I ordered one.... I'll let y'all know how it works out. cross fingers! I'm going to do my best not to destroy the original mounting setup so I can re-use it if I find the correct motor in the future or can have mine rebuilt. The tolerances are tight on the squirrel cage fan so not much room for error.
 
Difference in shaft size ....

Can be solved by making a bushing. Ace hardware sells brass tubing found in the craft section next to the balsa wood. They have an 1/8" ID x 1/4" OD brass tube. (You'll use this in between the fan and the new motor shaft)

Cut a piece about 1/2" in length. In the middle on one side, drill a hole large enough for the fan set screw to pass thru.

Once you have figured out how you will mount this new motor, and get it mounted, place the fan on the shaft and mark where the set screw will contact the shaft. With a small file make a flat spot on the shaft. Now take the piece of tubing with the hole in it and place over the shaft lining up the hole with the flat spot on the shaft. Then install the fan aligning its set screw thru the tubing hole and locking onto the shaft flat spot.

As for the insulation issue with the membrane and sealing the interior. Seems like you could use aluminium foil tape to make it air tight?
 
It just dawned one me that heat might be an issue on this motor since it won't be ventilated by the blower. The fan is isolated to the back of the fridge. In an hour of trial the case has gotten very very warm to the touch. Like HOT. Otherwise, so far it seems to be working. I will get a proper bushing tomorrow though.
 
So far so good! I made a bushing out of some rubber tubing. I couldn't find the brass stuff with a 1/16 wall. It seems to be working so far. The fan isn't true to start with so it is a bit dicey. The trial run was -5F in Freezer and 37F in refrigerator on setting 1. However, it wouldn't cycle off. I messed with the thermostat and may have gotten it to open up and did witness it cycling once on it's own. I am not sure if the defrost cycle happened while I was away but it looks like it did. Everything dry and good air flow and timer is definitely running. The blower setup looks like hell from the back but I won't be giving tours back there. Now if it will just cycle without having to replace the thermostat I'll be very happy!
 

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