When I spun up my Rega P2 the other day, I heard a disconcerting sound - it was like a pulsating grinding (or 'whoosh'), I'd say pulsating about 3-4 times a second, varying with the speed of the spin. I give my Rega a little turn with my hand before flipping the switch. The sound started with the manual spin and continued with the motor. I shut off the motor, removed the platter, examined everything (it was kind of like opening the hood of a car - I have no idea what I expected to see), put the platter back on, and it went away. Yesterday, I tried to reproduce the sound and was successful. Then I disconnected the belt from the motor to the subplatter, and the platter spin was dead quiet. When I reconnected the belt, I could hear a "whooshing"-like noise. I have to put my ear up to the TT to hear it. The pulsating sound has not come back, but it appears that the noise is coming from the motor spindle. The persistent whooshing noise certainly is coming from the motor assembly, but I'm not 100% sure about the pulsating noise, although I cannot reproduce the sound with the belt detached.
I never noticed the quiet "whooshing" sound before, and I believe I recall it being dead silent even with the belt attached when I inspected everything when I got the TT months ago. Does anyone have a Rega and/or know whether you can hear anything at all when you spin the platter with the belt attached?
Any other ideas? I'm going to talk to the dealer, but it is a real pain in the neck to get my TT down to them, so I want to do any troubleshooting I can to make the trip to the dealer as efficient and fruitful as possible. If the quieter sound is normal, I don't want to bother hauling it down to the dealer.