Onan 4000 producing 145 AC Volts!
MY 1989 Fleetwood with the Onan 4000 (of that era) have worked flawlessly for over 600 hours. Sometime in the past couple trips the ancient power convertor started making odd noises. I checked ac vo...
Forum Discussion
Your model the engine RPM must be 1800. Lower and it will produce lower voltage, Higher and it will produce high voltage. You need a Frequency meter and need to have the GOVERNOR adjusted. There is NO speed screw on your model. There IS an idle screw, but that screw does NOT engage at all as long as the Carb is set up correctly. The idle screw just keeps the engine from slowing down and the usual voltage when the idle screw hits the carb stop, I believe is 90 volts. The NO load voltage on your model is 126 to 132 volts. At that range your Freq will be 60 htz. Doug
