I have an onboard generator powered by a Yanmar 3GMFL married to a Marathon Pancake 332CSA3020 generator. It runs fine, everything works well, but...... I want to know more. It has no hour meter, it has no ammeter, it has no dedicated voltmeter. All it has on the control panel is an oil, water, and charge idiot light.
It is a constant rpm setup at 1800 rpm, and I can't tell when it's loaded or not loaded, the sound doesn't seem to change. Doesn't this setup still want/need to be loaded to keep up heat in the engine? With no gauges I can't tell if I'm underloading or overloading. Although I run it fairly seldom, just to charge batteries when out on the hook, I'd like to maximize the units longevity. 80 hours run time per year is probably a close guess.
So, my question is, has anyone found a packaged set with some type of load indicator and real temp gauge? I think I'd like to keep tabs on what it's doing. Any suggestions?