About the Whirlpool washer model 8525146-A: After looking the machine over, I now have a new question. The out of balance may have to do with the fact that four height adjusters have over time made the washer not level. (And yes being out of balance comes a loud thumping). The clicking noise seems to be associated with the agitator is loose. After pulling the top off and the cap underneath I can see the agitation gear mechanism but not sure how to assess the area, i.e., tighten it?

SOURCE: loose agitator on Whirlpool Ultima Care II washer

it could have stripped the spline on the plastic agitator. there is a bolt at the middle of the agitator and you can access that thru the top . remove the top cover and you can remove the bolt using a deep socket.

once you remove the agitator you can look at the dog agitator. these a 4 pcs plastics that works like a one way wrench.

be careful on the location, they are very hard to put back.

check also the spline on the inner part of the plastic assembly.

they do get stripped.

if they are, replace the whole agitator.

tnx 4 using fixya,

drcool

SOURCE: Whirlpool Washer making loud noise during agitation. Agitator appears to be very loose

Does anyone have the name or part number of the piece that needed to be replaced that help stop makes all that noise?

SOURCE: INGLIS WASHER SUPERB AGITATOR DOES NOT WORK

sorry not real solution as I am not familiar with that design but recommend replacing machine.

SOURCE: agitation and spinning problem

get a new cap or try some sort of glue

SOURCE: The agitator seems loose on

Use a 1/4 inch nut driver to tighten the set screw to the agitator shaft. It is about 3 inches up from the bottom of the agitator on the side of the agitator.