An illuminating thread.
A number of us have discussed pulleys getting out of line by varying amounts. I sorted mine easily with washers.
A couple of years ago I cleaned the contact faces of the pulleys. Perhaps that was a mistake.
Perhaps replacement pulleys are expensive or only second hand and worn now?
If one does resort to third party belts, how would one get a matched pair? What might the tolerance be between the lengths of the two belts to be matched?
So far as I have noticed, my 240 does not have the problem sound of the belts. I do as always seek to learn.
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