Tecumseh HM-100 RPM's ???

[wml52]

I did a little more digging and found the spec sheet for my engine. According to the specs this engine should have a no load speed of 3750 RPM. I readjusted the no-load RPM to 3740 RPM and applied various loads, here are the results:

No load 3740 RPM 126.0 Volts @ 62.3Hz
1600 watt resistive load 3725 RPM 122.6 volts @ 62.0 Hz
3500 watt resistive load 3545 RPM 116.5 volts @ 59.0 Hz
5100 watt resistive load 3475 RPM 106.6 volts @ 57.9 Hz
Oil fired Furnace 3740 RPM 126.0 volts @ 62.3 Hz
1/2 HP well pump 3735 RPM 122.9 volts @ 62.2 Hz

Weird thing about the furnace is when it kicked on I didn't really notice any voltage or RPM drop it pretty much stayed at the 126 volt 3740 RPM range?

Couldn't dial in the governor any better, if I adjusted the governor to give me 3600 RPM with a 3500 watt resistive load it would over shoot 3750 RPM when the load was removed. Considering the 3500-watt load is my water heater and a managed load I didn't want to push the RPM any further. The majority of the time the generator will be running lights, fridge, furnace in the winter with the occasional well pump kicking in.

Your thoughts are welcomed

 

[Rivets]

Just my opinion, but running any piece of equipment over 60 hertz for an extended period of time is asking for trouble. it will cause overheating in wires and burnout electric motors. Just a warning.

 

[redmondjp]

Just my opinion, but running any piece of equipment over 60 hertz for an extended period of time is asking for trouble. it will cause overheating in wires and burnout electric motors. Just a warning.

62hz vs. 60hz won't make any appreciable difference or harm equipment, other than synchronous electric clock motors and other digital clocks that use the line frequency as a reference will run a bit fast.