Rusty, sump and tank on a KD16 dishwasher
Doesn’t look too bad to me. This is pretty typical for an older KitchenAid dishwasher.
I use 3M marine sealant to reassemble something like this. That stuff is amazing. Doesn’t seem to deteriorate at all for decades.
You should be able to get many years out of that dishwasher yet.
John
Just reviving this old thread as I'm in a similar situation. John, when you say use 3M to reassemble something like this, do you mean around the edges of the gaskets? Under them by the thread holes? Etc. Or just covering areas that have rusted first?
The sump dissolved a bit around the motor mount holes in my KDS-16, so I've taken a backer plate cut to the same shape as the gasket (316 stainless, made via SendCutSend), attached it using Loctite EA 120HP (missile nose cone epoxy), and then gradually filled the gaps and imperfections between the two with the same compound.
My plan is to add a few coats of 5200, the 7 day cure stuff, around the edges of those holes but I wanted to know if you meant to just gob it on in a bead around the edges of the gasket, etc when attaching it?
I was able to get a new sump gasket fabricated (rendered in OnShape, made by Xometry vendor), and the mounting screws I'm using are 1/16" longer to accommodate for the added thickness of the steel reinforcement plate behind it. Originally I just planned to Molykote the gasket and set it on as normal, but I want to hedge my bets to get as much use out of this machine as possible when it's done.
Ken