Well, I finally had a chance to test out my surplus generator and what better way to test it than with a siren? The siren is a Model 7 with a cast iron rotor and 208-230 GE motor. This is the loudest siren I ever tested at my house, and would blow the 2t22 out of the water.
The generator is an Onan MEP-003A with a 30 horsepower air cooled diesel and a 15KW generator head. I finally got the fuel system cleaned out in it but I'm still having injector problems (notice only one set of cylinders is smoking) and the voltage regulator is a little screwy at times. I also think the hertz gauge isn't reading right since the generator is supposed to produce 60 HZ at 1800 RPM, but according the gauge it's making over 65 HZ at that RPM. So I still need to do some testing with that.
Here are the vids:
First run with the generator throttled down to what the gauge "says" is 60 HZ. As you can see it damn near stalled it.
http://www.youtube.com/watch?v=BkbM_qfmVR4
Now for the second run. For this one the generator was running at wide open (1800 RPM) and did a lot better.
http://www.youtube.com/watch?v=Z6Q4AxHx7xk