Here's one that has been bunching up my grey matter:
I have a GE washing machine for which I have just received a replacement Timer Knob from my local RepairClinic.com interweb store. I am replacing because the original has lost all its teeth, either due to poor oral hygiene or the fact that it's made of cheap plastic and fits poorly in the first place.
The root of the problem is that when the knob is in place on the machine, the teeth on the knob stem do not fully engage the corresponding teeth on the stem of the timer module. Holding both in my hand, the two parts fit together fine. But there is a plastic retaining clip that holds the plastic knob onto the metal pin coming from the timer module, and the groove on the knob stem does not line up accurately with the groove on the metal timer pin.
Now, we're only talking about a millimeter (literally) of difference in the alignment, but with these teeny cheapo plastic teeth not fully engaging, I expect the new knob will be down to the gums & eating applesauce sooner than the first. I did order an extra knob JIC, but my real concern is that the teeth on the Timer Module are also getting worn, and those suckers are about $90.
I see no way to replace or adjust the plastic, toothy stem piece on the Timer Module. Its a Kingston part, and is sealed in such a way that I know I'm not meant to be inside without permission.
Anyone have any ideas? Or am I just on borrowed time?