Ground loop related to VPI SDS/motor at 45 rpm?

I have since moved and am still getting a mid-frequency noise, but now it only seems to be coming from the motor itself, not being transmitted through the speakers. It's pretty loud. I don't have cones on the motor, just the original rubber feet. Do you think cones would help?

2 choices
1-lubricate the motor
2-call VPI

If you haven't oiled your motor in a while, it might be time. Although I never had a hum or noise through my speakers, when I owed an Aries 3 the motor would hum ar 45rpm audibly when I placed my ears around 12 inches away from the motor. I fixed it by tightening the black plastic pully on the motor with an Allen wrench and oiled the motor with a couple of drops of VPI motor oil.

I already tried the VPI motor oil. You just put a drop on the top of the spindle, right? I don't see where you tighten the black plastic pulley.

On the side of the pulley below where the belt attaches, on the side of the shaft you should see two small openings 180 degrees from each other. A small Allen wrench fits into both. Make re they are snug. It's how the plastic pulley is removed from the motor and gets loose over time.