Please Help. J. A. Michell Gyro SE - Speed Issue

I noticed a similar issue with my Gyrodec, which I have since 2000. I recently installed the new springs, did an oil change, and changed the belt as well. The table is running just slightly fast. 

I have thought about replacing the original power supply with the HR but I would need to also replace the cable lead from the motor. Years ago the connectors fell apart so I had them just soldered together. I had an email exchange with Fidelity Imports about this but have not heard anything back from them about the cable. 

Hello Friends!

Thank you for taking the time and effort to help resolve this speed issue.

Vair makes a logical comment,  I will continue down his path of recommendations.

In the meantime, Fidelity Imports did get back to me.

They shuttled me to another company called The Listening Room.  Mike is the owner and can be reached at 410-239-2020.

I spoke with Mike, who took over the business from his dad. They handle Michell tables, but don't seem to have a internet presence.

He has the Michell DC motor in stock, so I pulled the trigger and purchased one.  Price was $699. 

I have to look at the positive...Its a really nice table, expensive as sin, so fixing it is a better alternative than purchasing a brand new one! 

@quincy, that’s great news! Let us know how the new motor works out.

I will do that! rhg3!

It is unlikely that a motor would cause speed problems, it could be the DC power supply that is causing these problems.
Changing the engine with the risk of solving nothing and throwing away a lot of money is the worst option.
In old Gyrodec like mine the speed problems were usually attributable to a small ceramic capacitor located in the motor but easily accessible and replaceable but they were rare cases and relegated to Papst motors operating in AC... for this reason I would look more at the power supply than to the motor in the new DC