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#1 Brian Cochrane

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Posted 28 December 2017 - 09:17 PM

Motors have a  what I call a happy spot.It's the spot when it runs it's best. It's when it likes the length the brushes are ,the length of the brush is directly associated with the spring tension. Long brushes =  more spring tension.Some motors run best when the brushes are long and some run better when they are short and less spring tension.


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#2 mgerbetz

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Posted 28 December 2017 - 10:25 PM

Could not agree more on all points. I have only had a few small bad experiences with all types of motors. I have had some 'average' motors, but hardly any bad experiences or terrible motors. They are all just different; some come in later, some earlier, some right away with their best performance. Some last a long time, some don't last as long. It's all part of racing.
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Michael Gerbetz

#3 Pappy

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Posted 29 December 2017 - 08:50 AM

I know a guy who swears that a lot of motor brushes have hard spots that cause arcing and you have to find a pair of good brushes to get the most out of your motor. Maybe when your motor comes in it's just gone past a hard spot. Who knows. 


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Jim "Butch" Dunaway
 
Anything is possible IF you don't know what you are talking about.
 
When you are dead, you don't know you are dead. It is difficult only for the others.
It's the same when you are stupid.

NF-UE

#4 Brian Cochrane

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Posted 29 December 2017 - 11:00 AM

Brushes are so important,



#5 Pablo

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Posted 29 December 2017 - 11:06 AM

Maybe when your motor comes in it's just gone past a hard spot. Who knows. 

Like passing a pocket of gas or a kidney stone, Pappy? :stinker: :P


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Paul Wolcott

#6 Pappy

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Posted 29 December 2017 - 12:07 PM

Like passing a pocket of gas or a kidney stone, Pappy? :stinker: :P

Except that one feels good and the other one hurts like hell. With the motor you don't feel anything.   :laugh2:  :crazy:


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Jim "Butch" Dunaway
 
Anything is possible IF you don't know what you are talking about.
 
When you are dead, you don't know you are dead. It is difficult only for the others.
It's the same when you are stupid.

NF-UE





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