At start up normal charging is indicated, after warm up starts discharging.

[Ray weter]

I have replaced alternator and voltage regulator and problem persists.
Start the car cold and it charges as it should. Increased rpm =increased amps, put a load on and it compensates. But after a few minutes of driving or idling ammeter flips to discharge. Increasing Rpms or electrical load deflects it further. Ammeter "may" occasionally go neutral or slightly positive.
now what? Any ideas?

 

[bm02tj]

Check the voltage the regulator sees as it could be a bad connection any where back to ignition switch
as that is what it works on

 

[Pops1967GTX]

first need more information on system... And get a mult voltage tester & start at battery & take some reading...

 

[Ray weter]

Thanks for the tips. I'll keep working on it. It is a 62 polara. Built police special 383 w two fours.

 

[Ray weter]

All better with solid state regulator. Runs a lot better in cool weather too. It used to sound like an old "Johnny Popper" John Deere.

 

[mopar 3 B]

Thanks for the tips. I'll keep working on it. It is a 62 polara. Built police special 383 w two fours.

What has that got to do with the charging system?