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08-18-2017, 05:36 PM | #1 |
Senior Member
Join Date: Jul 2014
Location: NW Pa./Sc.
Posts: 252
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How far can you adjust the generator 3rd brush?
Long story short, I moved the third brush quite a ways up on the armature to reduce the output. I also replaced the stock cut out with a NUREX diode cut out. The system is still 6 volt pos. ground. After adjusting the 3rd brush-it reads 2 to 3 amps at idle and about 10 amps at fast idle or about 40 mph. I'm being told that is still to high a charge rate. How far can you move that 3rd brush up? When I turn the lights on at fast idle the amp meter goes down to 0-1 amp. Now what?
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08-18-2017, 07:01 PM | #2 |
Senior Member
Join Date: May 2010
Location: Oregon
Posts: 5,963
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Re: How far can you adjust the generator 3rd brush?
10 amps may or may not be too high depending on how much driving you do with the lights on. You just don't want to boil all the water out of the battery by overcharging. To find out about the third brush set it both ways fully and make a comparison and the report back here for others. If you are really worried buy a voltage regulator made for the Model A.
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08-18-2017, 07:43 PM | #3 |
Senior Member
Join Date: May 2010
Location: Rhode Island
Posts: 1,868
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Re: How far can you adjust the generator 3rd brush?
Daytime driving 3 amps isplenty
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08-18-2017, 07:47 PM | #4 |
Senior Member
Join Date: May 2010
Location: on the Littlefield
Posts: 6,159
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Re: How far can you adjust the generator 3rd brush?
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If I was to go on a very long trip I would set it back to 6-10 |
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