Charging System Question

Pull the wire off the field spade to the voltage regulator. Throw the meter on the alt output post and ground.. and you'll see battery voltage. Now use a jumper wire, engine running, and touch it from alt output post to the field spade and the alternator should go full field and show you 16+ volts. Then you know you're looking at the feed wire from the battery/bulkhead connections to the voltage regulator as the culprit.