Help with Mobile Maid Dishwasher pump to motor seal

[piglet]

Hello friends,

I'm hoping one of you can assist me in locating a seal, and figuring out how to remove and install it. I've got a Top opening GE Mobile Maid GSM330N01 of unknown vintage. It is the style with the motor and pump going crosswise under the machine... Not the kind with the vertically oriented motor directly below the drain area. I've figured my way into the area, and I will include photos of the machine, and the orientation of the parts, and also shots of the open pump, as far as I've been able to get in there. I dread pulling that final seal as I don't know what I'm doing with that, and can't seem to find info on it here or elsewhere. I've spent a day just figuring out that the pump has a plastic ring when you're first getting into it, that looks like it should just pry out but actually is threaded and not only that it is counter threaded! This machine has been working well for our family since 1986. Our kitchen is so narrow that we can't put in a front opening dishwasher... there would be no room to walk around the door, so I'm really hoping to keep it going. I've done small repairs over the years, but this time I'm stymied without a repair manual. We have a substantial leak, not from any hose, but we think from that seal between the pump and motor. We plumbed it into the permanent house plumbing at one point, so you will see in the underside photos, the drain and fill houses leaving the machine from a hole we cut into the Rear wall of the dishwasher, if that helps to orient what you are looking at. Thanks in advance for any help you can offer.

 

[vacman1961]

Here is the part number for the seal kit, WD19X10032. The rubber part is pressed into the housing, just pry it out without damaging the housing, when you install the new seal, put a little dishwashing liquid on it and press it in. Make sure you don't touch the seal surface with your fingers, the oil in your skin will make it leak, if you touch the seal clean it with a paper towel with a little rubbing alcohol. If worst comes to worst, GE makes a replacement motor kit that works well, it fits perfectly, looks a bit different but is a better design and a little quieter.

 

[vacman1961]

This is the part number for the motor and pump kit, complete. WD26X10013

 

[piglet]

So very helpful!!

Thank you So much!! I can hardly believe how quickly you responded! I think with your help I can do this! I will let you know how I fare when parts come in. I guess as much as I like doing hand washing of dishes, it will be high on the list of priorities for me. Clearly I should be like you... I should own a back up machine...
Thanks again!

 

[piglet]

questions about the new pump/motor seal assembly process

Hello! I got the parts in today, and took the old apart. Now just to check out what I should do, I also took apart my spare pump and motor to see how that last seal came out. On that one, it popped out fairly easily, leaving behind a plastic sleeve on the motor shaft that was integral to the plastic cup over the end of the motor bearing. The plastic cup was actually not accessible until removing the pump from the motor. The new seal kit has a plastic sleeve joining the two parts of the rubber seal assembly, and that would not fit on unless that old sleeve was removed. However no cup came in the parts for the kit, and the sleeve was sealed rather too firmly to easily get off the shaft. On the motor in better shape that I actually wanted to use, the rubber seal assembly was a bear to remove and I had to kind of cut up that plastic shaft into bits. I saved the cup for reuse, and sanded the worst of the grime and pitting on the motor shaft, feeling nearly certain that doing so would cause the new seal to leak, and not doing so would as well. I didn't have much confidence that this was a salvageable situation, and fully expect the roughness of the shaft (even after sanding) might cause the seal to wear down prematurely. I was afraid to sand a lot, lest I narrow the shaft, not knowing what tolerances there might need to be. When we got the impeller back on, we noticed that the metal blades of the motor fan would not spin easily, had some resistance when we spun the blades by hand. I guess that is from the seal being tight? I did as you instructed and wiped all down with alcohol, and also as the video instructed, I put on some dish soap before inserting it. We put it back together, and to my utter surprise, it neither leaks, nor does the motor sound strained. It simply seems to be working, though my partner commented that there is a hot rubber smell as it has run through its first wash cycle. I assume that is the new seal being "broken in" but don't know. Can you guys address what I should have done or should do, or do I just leave it alone as is and say "Oh boy, it's fixed!" ?

 

[piglet]

update

Its been about 10 days of running the machine, almost daily. So far all is well and we're good to go. Thanks again!