A previous owner installed a new alum rad & 3 fans which are putting a drain on my electrical system. On hot days my battery will slowly drain instead of charge, leaving me stranded whereever I decide to shut the engine off.
Hence I would like to upgrade the alternator from 75A to 100A. I also noticed a butt splice in the alternator wire so I thought I should inspect or replace it. I assumed it would go straight to the battery or to the "batt" side of the starter solenoid. It doesn't. I recently replace the ammeter in the dash with a voltmeter and saw the size of those leads! Perhaps one of those runs back to the alternator and other to the battery? Any links to a schematic would be helpful. Thanks