A recent repair I had to do was on the evaporator. The polyurethane
coating was failing. Rust was forming and progressing under the coating. I could peel off large pieces. The areas still attached I used a coarse rotary brush to clean off the remaining coating. Dismayed, I noted that even where the coating was sticking, some rust was forming under the coating.
Using the rotary brush cleaned it well. It was a difficult job to get off all the coating from evaporator.
I took out the screws holding the evaporator, removed the back plate that was riveted and carefully pulled it forward and twisted it till I could get in to all areas. To work on the fridge, I flipped it over on its top.
it, next was a wondering what to coat it with.
I settled on spray on Rustoleum black rust converter for the primer
Then two brush coats of Rustoleum countertop enamel ( a clearanced item customer reject one qt was only $2.50)
lastly Rustoleum Epoxy
enamel for appliances
in a spray can.
Finally when putting it together, the rear screw which holds up the evaporator would not bite.
I took a chisel and can opened a 2 by 2 inch square of the outer case on top.
Cut and pried out a section of the foam insulation
what they used to hold the screw was a thin sheet steel
plate. The plate hole was rusted out.
So I used a new nut and screw. I greased the screws with lithium waterproof grease. And glued the nut in place with PL premium poly construction adhesive
, keeping the glue away from the threads, hope the grease will let me take it out if I have to later.
Put the foam back in
Bent the steel back down
Sealed with more Pl, that is great waterproof stuff.
I certainly hope this holds up.