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Old 08-03-2018, 09:30 PM
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Joe's advice is good.

The nut with the orange wire is the (+) wire charging your batteries out of the alt, and guessing by your wiring probably going to the ammeter, unless you've wired it somewhere else.

You can connect your (+) meter to this and to a good ground to see what's happening with the charging voltage. There are still a few sources for voltage regulators for the old 35A Motorola alternators. I bought one earlier this summer. Off the top of my head Google "M5-197A Transpo" and see if that helps. OMB Warehouse in Pennsylvania, if I recall correctly, for about $35.
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Last edited by sastanley; 08-03-2018 at 09:40 PM.
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