[HAM] Mod C3 loosing pitch after few minutes

[Eduardo Bisogno]

Hi guys, 
Back from ma vacation days and trying to keep on the search for a solution to my Hammond C3 problem I have discovered that actually I have a few corrections to make about it: here in Brazil we have the 60 cicles and 115V system in most of the cities (we used to have, in Rio de Janeiro, the 50 cicles 115V system). My C3 original Run Motor (that still there in the C3, thought it's driving the TWG axle) is a 50 Cicles 115V. That's why the 60 Cicles 115V Single Motor Mod has been done. I have talked to a technician from Rio de Janeiro and he said that it was a common Mod done in the brazilian hammonds that were bought in the 50 Cicles years.
I don't know if the Start Motor still there. I couldn't find it!
Also, the situation is getting gradually worse, 'cause the Organ is holding the correct pitch for less time now. What I could check is that the Single Motor is pretty hot when it makes the noise and goes to the half tone down pitch
So, I would like to ask you guys two questions:
1 - Is it possible to check the strength of the capacitor, to see if I could solve the problem by only changing the Capacitor...
2 - A Technician has sugested that I should put benzine on the oiling cups and run the organ for a few minutes for the next 20 days to clean it. This would eliminate the old oil or other dirt from the TWG. After these period, in which I would have to keep cleaning the dirt that will come out of the TWG, I should re-lubrificate it with HAmmond Oil. Do you think I should do that? 
I have created a flickr account and posted a few pics of the Motor System of my C3 at:
http://www.flickr.com/photos/22997692@N02/
Any help will be very much aprecciated!
Tks!
Eduardo 
----------------------------------------
> Date: Mon, 31 Dec 2007 08:56:59 -0800
> To: hammond at zeni.net
> From: organfreak at donobi.net
> Subject: Re: [HAM] Mod C3 loosing pitch after few minutes
> 
> 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.
> 
> 
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