VPI-HW19 first model

A common problem with the early HW19 motors which were not rigidly mounted like everyone else was doing at the time and VPI changed to.

VPI should be able to provide you with a replacement 600 rpm motor capacitor that should greatly reduce motor vibration. I’ve successfully used their 0.47pfd 600VDC snubber capacitor although it is optimal for the 300 rpm Hurst motors.

Rigidly mounting the motor on a proper absorptive metal piece to further sink noise as well as heat would be much preferred. The optional VPI SAMA - stand alone motor accessory was (is?) specifically designed for this purpose.

I’ve rebuilt a number of those Hurst motors which is fairly easy to do if you have access to VPI’s locking (set-screw) output shaft collars 👍

     I've seen cases of the HW-19's motor pulley actually contacting it's plastic motor cover plate (ie: washers not installed on the three posts first, per instructions / chassis suspension springs relaxed / pulley installed too high on shaft).

     Sometimes: that clearance is so tight, the weight of a vinyl will be enough to close it.

@dill This TT has sorbothane suspension pads

@boothroyd , Previous owner received this upgraded capacitor with new motor 2 years ago. Regardless when motor is on you can turn plinth into rapid vibrator. The noise is MECHANICAL and it's typical to most of the stepped synchronous motors that aren't any good for turntables on the first place.

I had a very similar problem with mine and I eventually found the solution. Replace the sorbothane pucks with Herbies Tall Extra Firm Tenderfeet and that should do it and make sure the plinth is totally level. The problem was not electrical.

Tenderfeet

@boothroyd 

Having the fact that I actually have the original motor from late 80's early 90's, brings me to an idea to try to recondition it.

It spins when voltage applied at proper terminals through the OG starting cap.

I have an access to unlock the c-clip holding the shaft on the top portion of motor. I can also see some lubrication drops through the bottom of the motor when bottom cap is off.