Quote:
Originally Posted by Special Delivery
At what point does it become non-parasitic. My 1930 Special Delivery has gremlins under the hood. If I leave my Nu-Rex 12V alternator connected I drain multiple volts from the battery in a matter of hours. Bad diode(s)? Bad regulator? Any suggestions from the sages in here?
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If everything is stock and no additional add-ons, I would definitely suspect the alternator and have it checked out for either diodes or its internal regulator.
If you have a lot of add-on stuff, I would probably start there. Disconnect each one at a time and use an the ammeter of a VOM in series with each to see what kind of current each item draws when the car is off. You would hope zero, but ya never know.....
For that matter, you can also use the same ammeter connected in series with the alternator output pole to check for draw. It could be milliAmps which is too small to show up on the dash ammeter.