SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: jamiemwedmore1234 on June 30, 2014, 12:37:28 PM
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Is there a proper way to wire up a 1 wire alternator cani go straight to the positive on the starter can it have current to it 24/7
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Yes you can come straight off the starter "Batt" lug to the alternator.
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Yes you can come straight off the starter "Batt" lug to the alternator.
X2 on that- Though make sure you wire in a diode or have a full disconnect on either + or - so your battery does not get drained overnight-
My race cars all use 1 wire alt but I hate when I forget to disconnect as the battery will be completely dead in 48 hrs.
JW
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I've always run a poor mans 1 wire...jump the field to the main lug, then to the batt or starter main lug. I've left the battery connected for months without problems in my white boat. Can't explain it, but it worked
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X2 on that- Though make sure you wire in a diode or have a full disconnect on either + or - so your battery does not get drained overnight-
My race cars all use 1 wire alt but I hate when I forget to disconnect as the battery will be completely dead in 48 hrs.
JW
I would think you've got something else causing a draw. I can't see how the alternator can be pulling any juice when not in use unless you're pulling juice from this circuit to power something else. I've always wired direct to the starter, or remote starter solenoid, or a direct battery + lug. I know some people put a diode in so as not to back feed the ignition system. Sometimes the boat won't turn off otherwise.
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I would think you've got something else causing a draw. I can't see how the alternator can be pulling any juice when not in use unless you're pulling juice from this circuit to power something else. I've always wired direct to the starter, or remote starter solenoid, or a direct battery + lug. I know some people put a diode in so as not to back feed the ignition system. Sometimes the boat won't turn off otherwise.
You will normally see 2 different types of 1 wire, some wired internally to the exciter/recitifier and some that have to be energized from the lug and a flat pin (ie delco unit)
Here is some good info http://bob_skelly.home.comcast.net/~bob_skelly/alternator_conversion/wiring_alternator1.html (http://bob_skelly.home.comcast.net/~bob_skelly/alternator_conversion/wiring_alternator1.html)
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with my old motorola single wire thats all i had. a single wire going directly to the battery. HEI ignition on a switch. no diodes, nothing.
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with my old motorola single wire thats all i had. a single wire going directly to the battery. HEI ignition on a switch. no diodes, nothing.
That's exactly how mine is hooked up too.