Re: Charging system, external regulator
You're welcome. If still using a mechanical regulator, OE set-up, depends on how much is being asked for the alternator to supply, the internal setting of the voltage coil, speed of the alternator, and temperature of the battery electrolyte and regulator temperature.
There is an art, read procedure, to set the regulator. One has to let the alternator charge the battery back up after starting, 2500 RPM for 5 minutes, therefore the reason requesting temperature, the higher the temps, the less charging voltage needed to recharge. If voltage is low, then have to remove the reg cover, lengthen the spring to increase voltage, replace cover, and let the reg temperature stabilize again before voltage reading. Then, once set to a value, make a mental picture or take notes if the battery needs water, as in being cooked from over voltage, or needs to be externally charged as in under charging.
If you have no less than 13.2 volts at idle with headlamps on, and min 14 volts with engine at 2500 RPM and no accessories on, I'd say you're good to go. Fourteen-two would be nice, but you're gonna lose a couple tenths in the connections and wire temperature. I wouldn't worry about the 0.2 volts.
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