Need some help, any advice is greatly appreciated. On my 64 Impala convertible with a 327 has a over charging issue & cooking the battery. It's putting little over 16v at the battery & 18v at the alternator. I checked my grounds, it has a new alternator, new regulator, & new battery but the voltage is still over 16v. Is there something I'm missing?
My question would be when did this problem start, with an overcharging problem or something else. What part did you change first. My gut feeling is that it's a faulty voltage regulator. Not sure what you mean by an amp. If it's an ammeter I would get rid of it and get a volt meter, much safer. Should be able to get your alternator checked at automotive supply store like Napa or etc. If that's good move on to next part.
This problem seem to pop up after the ignition coil & resistor was replaced, I did replace the voltage regulator & alternator twice with no change in voltage, made sure the grounds were clean & tight. So there might be something else affecting the voltage output?
Ok, figured it out. For some reason the ground from the regulator to the radiator shroud wasn't good. I ran a new ground directly from the alternator to regulator & got 14v at the battery. Thx for all the help....