Over Charging Issues

So the short version is that the regulator must see actual battery voltage. :D

This is simple ^ and true.

I just went round and round on Charging System Overcharging. Watched 20 videos on the subject, read everything on the subject and applied all the wiring diagrams.

Lots of experimenting with different components, all tests were massively overcharging.

'89 D100 with computer controlled Voltage Regulator that failed. As the whole truck is being converted back to "Old School" chose to go with mopar external voltage regulator, no joy.

Tried a motocraft Alternator with Ford external voltage regulator, no joy... over charging.

Came to the conclusion that some old wiring of the computer controlled truck was backfeeding causing the issue.

My fix ended up being intalling a 60 amp Motocraft Alternator and doing the ad on one wire voltage regulator kit, isolating the charging system from all of the '89 truck's original wiring.

Success, now I can get onto other more important things.

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Happy with the results.

Getting rid of all the poorly designed systems that come with the newer vehicles.

Making the whole truck Future Proof (like no in the tank fuel pump) and making it easy to fix and maintain for decades to come.

Simple is Good.

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☆☆☆☆☆