I have an 11 year old Maytag Neptune Washer MAH4000AWW. It has excessive vibration. I have opened the back cover and noticed leakage around the shaft holding the pulley to the inner tub. Does this mean the balance ring has lost its solution and leaked out? If so, is this worth doing a home repair?

Sounds like an object is stuck in the pump. Does the pump activate? Does it try to pump out water. Please let me know.

Hello, it sounds like your Neptune's bearings and seal need replaced... See NeptuneBearing for more info on replacing your bearings and renting the special tool kit to save you time.

I see that you have a MAH4000 Neptune. Did you know that your machine shipped with a faulty door latch wax motor that will eventually damage the control board? See NeptuneHelpSong for a video that explains what happens when it fails. You can proactively upgrade your wax motor before it fails and prevent the failure to the control board.

I hope this helps...

two problems here,
your shaft seal is running on its last leg
the sound is unmistakeable and always described the same...
the water issue, you probably have a trickle leak through the cold water valve
the mixing valve is quite an easy repair, but I would have to say with all honesty, it probably time for a new machine
the hub seal is a tub replacment call
2 hrs of labor if hes good
and the tub runs around 500.00 dollars
sory for the bad news

BELT IS LOOSING TENSION CAUSING IT TO SMOKE REPLACE BELT

Here you find alll diargams for your appliance.

Drum size or capacity for the Neptune Model Number MAH4000AWW is 3.4

Drum capaicty is 3.34 for the Neptune Model # MAH4000AWW

Why?Do you understand that the bearings are locked into the outer tub and you have to replace that,the outer tub.Very expensive repair that will most likely be almost half the price you had paid for the machine new.My advise is DONT FIX this if you have a bearing problem ,because I honestly believe in letting the customer know the truth.Sorry, but a 15 year old re- conditioned Maytag will out last any Neptune ever made.

open door and feel around the rubber bellow possible tear causing leak