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miker98038 · 10-22-2019, 06:46 PM

The oil sender is an idiot light, isn’t it, so it doesn’t care. Change the bulb to 12v. Or, leave it if it’s on the 6volt drop resistor. The water temp needs to see only 6 volts, as does the gas gauge. The 56 units are 12 volts (at least in a ‘bird) and I think the only year in that time frame that didn’t use a drop resistor to 6.

There’s been some discussions of different drop resistors here, either do a search or wait for someone who knows to chime in. I don’t remember the detail, but some apparently don’t work well with the King Seeley (?) gauges.

10-22-2019, 06:46 PM	#2
miker98038 Senior Member Join Date: Mar 2013 Location: Kent, WA. Tucson, AZ Posts: 1,398	Re: 6 volt to 12 Volt conversion The oil sender is an idiot light, isn’t it, so it doesn’t care. Change the bulb to 12v. Or, leave it if it’s on the 6volt drop resistor. The water temp needs to see only 6 volts, as does the gas gauge. The 56 units are 12 volts (at least in a ‘bird) and I think the only year in that time frame that didn’t use a drop resistor to 6. There’s been some discussions of different drop resistors here, either do a search or wait for someone who knows to chime in. I don’t remember the detail, but some apparently don’t work well with the King Seeley (?) gauges.