Ammeter Maxed

Valiant73 said

I justed tested it. At the battery was 13.3 while running. Increasing the rpm brought it up a little, but it still stayed below 13.5. Once the fan kicked on, it dropped to 12.7 and increasing the rpm didn't change the reading. The ammeter was still reading high and would max out with an rpm increase.
When I installed the alternator and voltage regulator last week, it was reading 14.5 at the battery while idling. With a brand new alternator and regulator, what esle could be causing this?

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I have run into this before. To fix this I had to do 2 things. I ran an wire from the positive on the alternator to the starter relay. The battery connection is also at the starter relay so it will provide a direct link to the battery. Second I installed a larger field wire- the one that goes to the ballast resistor- that seemed to solve my problem

This is assuming that you had 14.5 when you installed the new alternator. I have found most alternators you can buy from local parts houses are not as good as they once were. I have been upgrading to powermaster alternators when the ones I am running stop working. i have had a power master on one of my cars for over 10 years and still no problems