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Post by rick on Sept 23, 2017 1:48:17 GMT
I'm trying to replace the wiring on my soup can. Does one have to remove the evaporator to get to it? I couldn't find any pics that would help me in this endeavor.
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Post by elec573 on Sept 23, 2017 2:41:47 GMT
Rick the top is all connected to the evaporator. The top is only setting there by gravity. It can be lifted off I use an engine hoist . The cas are a little different then the cks but it is easier if you pull the top off . Ck fan has a post how he rewired his ck in the ck section I would read that to give you a better understanding. We have some members that love there cas I'm sure they well post .
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Post by rick on Sept 23, 2017 3:11:38 GMT
I have the top off and sitting on saw horses. I didn't know if I had to remove the evap from the top section to remove the insulation and get to the wiring. I looked at the CK thread you mentioned and it may help me figure it out. Thanks
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Post by elec573 on Sept 23, 2017 4:02:34 GMT
Ok that's the way I did my ck (on saw houses) there should be screws going through the bottom plate into the top deck . You need to remove them to gain access to the wiring . But be very careful to not over stress the lines that come through the bottom plate . There is insulation in there you well have to either move it aside or remove it alltogather . Some people leave it hang by a couple of screws to hold up bottom plate . The evaporator is part of the upper deck but attached to the lower deck by the refrigeration lines so be careful not to over stress these lines . My ck had a rap around cardboard/ edge that went around the upper and lower deck . I was able to lower mine enough to get to wiring. But in hind site I would probably try and take that apart and work it that way . That should get you access to the wiring going to the motor and this is a good time to replace heater as well . Mark all wires (you probably know this ) where they go on control.
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Post by blackhorse on Sept 23, 2017 4:26:51 GMT
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Post by rick on Sept 24, 2017 2:33:01 GMT
So I was successful at separating it enough to do the wiring. I am making the harnesses as every bit is just baked! I was wondering if anyone knows what the small bulb looking part is on the wiring to the thermostat? Is it just a covering for the solder connection or a diode?
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Post by coldspaces on Sept 24, 2017 3:09:48 GMT
The bulb is just insulation over a splice, don't recall if the splice is soldered or just crimped.
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Post by rick on Sept 24, 2017 3:13:43 GMT
Thanks Cold! I figured that is what it was but didn't want to break it open to find out I was wrong.
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Post by rick on Sept 24, 2017 5:04:36 GMT
Harnesses have been built.I was surprised that the compressor wiring had no ring terminals but the heater wiring did. I added them to the compressor wiring for a better connection. I also stepped up a guage on wire size for good measure.
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Post by elec573 on Sept 24, 2017 15:41:15 GMT
Howes everything else look under there insulation,rust etc. ?
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Post by rick on Sept 24, 2017 18:33:01 GMT
Insulaton is great. The two innermost evap attachment nuts/washers are heavily rusted. The one directly under the compressor is the worst. I am going to replace them and cosmoline all of them before re-assembly. Should be fun. Moving slowly and methodically. Don't want to break something that can't be fixed and have wasted all my time.
One came off cleanly, the other not so much. I had no idea the evap carriage bolts were aluminum! I will replace with SS. Might be why they are prone to corrosion. Dissimilar metal corrosion.
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Post by timeswelding on Sept 24, 2017 21:53:10 GMT
Electrolysis really takes its toll on the dissimilar metals.
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Post by blackhorse on Sept 24, 2017 23:19:49 GMT
For a period of time after aluminum refining by electrolysis took the metal from "precious metal" to utilitarian, it was a "miracle metal" and used for some inappropriate stuff.
*Flashback to aluminum house wiring*
Some of the texolite screws were aluminum for a while, and are similarly irremovable.
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Post by timeswelding on Sept 24, 2017 23:23:34 GMT
It's hard to believe that the Washington Monument Obolisk is capped with a 7ish pound pyramid of cast aluminum. At the time it was more precious than gold due to refining costs.
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Post by rick on Sept 25, 2017 0:46:19 GMT
For a period of time after aluminum refining by electrolysis took the metal from "precious metal" to utilitarian, it was a "miracle metal" and used for some inappropriate stuff. *Flashback to aluminum house wiring* Some of the texolite screws were aluminum for a while, and are similarly irremovable. Flashback? Aluminum is still used in power distribution to homes. The main feed on my house is aluminum. Everything else is copper.
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