Thanks gentleman. The belt came from Musicdirect with a receipt
that SAYS it's the correct belt, but I guess I cannot totally
rule that out as a mistake.
As far as motor positioning, I have moved it as far and
as close to the plinth as possible, with no results.
Again, thanks for your thoughts thus far!!! |
I did try the talcum powder trick. No dice. It seems unlikely that it would affect the speed that drastically however. 34.6 is pretty fast. |
Thanks mofi-
Will do. MusicDirect offered to send me another belt, so I'll try that just for the hell of it, but I think the motor might be the culprit. |
The 11.5 platter was standard on the original Scout. I have mentioned this to VPI, but will make sure they are aware when they return my email...thanks for the heads up. |
Thanks BRF- I agree. It's gotta be either the motor running too fast (faulty motor), the pulley is designed for the 12" platter (most likely I think) or possibly the platter was switched at some point(most unlikely)
Thanks again, hopefully I can get ahold of someone at VPI soon, I need my LP fix... |
Thanks DTC- my pulley is well under 1.25 inches at the top, more like .5 inches...i also believe you are correct, it would only make sense that there would be a slightly different sized pulley for the 11.5 inch platter vs the 12 inch platter for the 600 RPM motor.
I don't think the original owner made any mods that I am aware of, in fact, I think he's been running this thing fast for the three years he owned it...no wonder he went back to CDs.
Is the pulley swap pretty easy once I get it? I'm no mechanical engineer, but not a total dunce either. |
Thanks all for the replies, much appreciated. I did forward this thread to VPI and got a response from Ian, who had me send some pictures, but then the line of communication went silent again. Bummer. I may consider the upgrade to the 300 rpm motor at some point, seems pretty basic and not all that expensive. I'll try and keep you all posted if/when this gets resolved. |
Hey guys-
Got ahold of Matt at VPI today, and I just need to send out the 12" pulley and they will send one back for the 11.5" platter...any tips on how to take off the pulley? Is it a tiny little hex nut on the bottom of the pulley itself? The rest of the Scout uses a 5/64 hex, this one seems smaller? Thanks in advance!!! |
Thanks BRF, will give it a shot tonight after work. |
Hmmm....don't think it's a 5/64 Allen on my motor, appears to be something a bit smaller as my 5/64 definitely ain't fitting...off to Home Depot |
Thanks BRF- the original is on it's way to VPI, and I wouldn't mind them having it in their hand to make sure they don't send me the same pulley again by mistake. Unlikely, but so is putting a pulley for a 12" platter on my motor in the first place:)
Also, to save headaches for anyone attempting the pulley swap in the future, the grub screws on the pulley are 1/16, and the screw attaching the brass nut below is 1/20...why the hell the US never went metric I'll NEVER understand haha |
Received a new pulley from Mat today, and speed is now dead on:)
Of course, now I come to you with another request for assistance...the motor now "clicks" fairly loudly (can be heard from 6 feet away)...it almost sounds like something is rubbing inside? This noise wasn't present AT ALL with the previous pulley, which I find odd...any ideas? |
It has nothing to do with the pulley. I've got the motor sitting on top of my counter top all taken apart, minus pulling the bottom of the actual motor housing off...sounds like there's some friction in there...in need of oil or something else, trying to pull the bottom off now |
Fixed. In case anyone ever pulls apart the motor, it's really a simple beast. What happened was when I took off the brass nut that sits under the pulley, it allows the drive shaft to lower to the very bottom of the motor casing, creating a vibration. You have to manually hold up the drive shaft while you re-attach the set screw, and it holds the drive shaft a few mm above the bottom housing of the motor base. |
The brass spacer is on, but the trick is (at least for me) was holding the brass spacer set screw in place with the Allen wrench WHILE you push down the pulley to meet the brass spacer. If you don't hold it in place while you push down the pulley itself, you are actually pushing down the drive shaft ever so slightly into the motor casing, causing the vibration you are hearing (I think). If you need me to clarify let me know:) |
