[HAM] Mod C3 loosing pitch after few minutes

[Scott Hawthorn]

At 07:03 AM 12/31/2007, Eduardo Bisogno wrote:
>Hello to all Hammond lovers,
>  My name is Eduardo, I'm from Porto Alegre, a city in the very south of 
> BRazil and I've been seraching the net for info to help me out with some 
> problems I'm experienceing with my recently bought C3.
>  The motor, after 40 minutes of playing, makes a strange noise and looses 
> pitch (about half tone). If I turn it off, wait a few minutes and then 
> turn it back on, the same problem repeats after 15 minutes of playing. If 
> I repeat the procedure it works well for the next 8 minutes... One of the 
> first thing I've noticed before buying is that the previous owner has 
> made a modification on this organ to replace the Star/Run Motos for a 
> Single Motor like the L Models. Could it be that this One Motor System do 
> not work well for the C models? Rick Prevallet from Tone Wheel General 
> said that I should check the single motor  capacitor? Do you guys agree 
> with him? Couldn't it be that the motor needs to be rebuilt? I mean 
> rewired? Or should I try to go back to the two motor system? Here in 
> Brazil we have the 50 cicles system, so do you know where I could buy a 
> new 50 cicles Start and Run Motors?

Eduardo,
In addition to Dave Bishop's suggestion, I would advise you to listen to 
Mr. Prevallet's advice. He knows exactly what he is doing.