I have this fairly old dish washer which still works no worse than when new, but it now makes a racket when the motor is running. I've made a bit of a study underneath the thing and can see the cause of the noise, that being the 'water shield' on the motor shaft. It's sort of wobbling on the shaft and is no longer mounted parallel to the top of the motor. When it wobbles on spinning it sometimes hits a bit on the surrounding metal bits.
So for now even though it seems to be still functional, the racket is irritating.
So the current question(s):
I can buy that part for around $3 from Sears and various other places. Looking at the parts diagrams and looking at the thing underneath from the front it's not at all clear how that thing is mounted on the motor shaft in the first place... like just pressed on or what? If I just need to replace it I am wondering if I can get the motor out with the (built in) dishwasher in place, as opposed to needing to pull the entire thing out from under the counter?