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1953 NAA charge problems


 
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slowloader
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Joined: 31 Oct 2012
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PostPosted: Wed Oct 31, 2012 8:18 am    Post subject: 1953 NAA charge problems Reply to specific post Reply with quote

My amp meter is in the + (always charging). I just replaced the battery, because it would not hold a charge and was old, but I have the same problem with a new battery. The generator was rebuilt several years ago. I kept the 6v system. Is this a voltage regulator problem or something else?
 
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JMOR
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PostPosted: Wed Oct 31, 2012 8:36 am    Post subject: Re: 1953 NAA charge problems Reply to specific post Reply with quote

slowloader wrote:
(quoted from post at 12:18:25 10/31/12) My amp meter is in the + (always charging). I just replaced the battery, because it would not hold a charge and was old, but I have the same problem with a new battery. The generator was rebuilt several years ago. I kept the 6v system. Is this a voltage regulator problem or something else?
Disconnect the field (wire from VR FLD to generator FLD) and see if it reduces charge current. If yes, it means that VR is feeding the generator field too much current & thus full output. This all of course assumes that battery is sufficiently charged to bring it up to around 7+ volts at which voltage the VR should cut back on charge current. Also, investigate for a good ground wire from generator to VR case.
 
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souNdguy
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PostPosted: Wed Oct 31, 2012 10:39 am    Post subject: Re: 1953 NAA charge problems Reply to specific post Reply with quote

turn lamps on with engine off. does the meter jump positive?

if yes.. the meter is wired backwards and you are really running around discharging...
 
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slowloader
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PostPosted: Wed Oct 31, 2012 12:10 pm    Post subject: Re: 1953 NAA charge problems Reply to specific post Reply with quote

The amp meter was replaced years ago and has been working correctly. This is a recent problem.
 
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souNdguy
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PostPosted: Wed Oct 31, 2012 1:49 pm    Post subject: Re: 1953 NAA charge problems Reply to specific post Reply with quote

as jmor said.. check grounds. a poor ground will cause a vreg to overcharge sometimes..
 
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