Alternator Charging Problem

[Don Bradner]

I think it is normal for the exciter to be hot all of the time. A lot of times
when you are seeing low voltage it is because the main chassis ground needs
cleaning. Where the ground wire from the batteries is tied to the chassis. The
hot terminal probably needs cleaning as well, but the ground is the biggest
culprit.

On 1/13/2009 at 5:28 PM D wrote:

>Hey All!
>
>I've been experiencing intermittened charging from my Leece Neville
>A0017704JA alternator and now not getting anything out of it. I had
>it rebuilt about 2 years ago (7000 miles) and this last summer my
>voltage meter would hit 14 volts for a short few minutes and then
>dips just under 12 volts for a long time (night time driving). With
>lights off my voltage hovers around 12 volts.
>
>This alternator has a pig tail on the regulator which I figure is the
>trigger wire (14 guage)? It appears to be live (12 volts) with key
>off or on. So this has been on All The Time. Wondering if that wire
>being energized all the time could damage the regulator or
>alternator.
>
>I am wondering if this could be a malfunctioning battery isolator.
>I'm rambling with lots of ideas without being able to try them out
>from my office.
>
>Any thoughts? Thanks for taking the time to read my lengthy query.
>
>
>Dru and Debora
>83 FC 35 RB
>Steady Gittin' It!
>
>
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