Join Date: Feb 2010
Location: Narragansett Bay
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Re: Alternator robbing HP, what's the right idle?
If I recall correctly, SO has an engine driven cold compressor. A refer compressor is a ton of drag on an engine. I think there is something else wrong here. Either the alternator is bound up or the engine is starving for fuel or air, when under load.
With the Balmar regulator, the bank is not going to cook at high idle. Depending on how big the bank is and whether it's an AGM, I'm surprised it's ever trying to make the full 120amps, let alone 100amps.
Still, I think there is something more fundamental going on here.
Just curious, does this setup have a dual v-belt or a wide single flat serpentine?
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In the harsh marine environment, something is always in need of repair. Margaritas fix everything.