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Old 09-12-2020, 08:09 PM   #1
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1993 BOUNDER 460 help!

Hello! Just got a BOUNDER with a ford 460 in it from a family member. It was stolen and recovered but it horrible shape they cut up the ignition and wires going to the alternator, and the battery cable routing is a nightmare! Only has 40k miles so wanting to get it in runable condition.

Question 1. Does anyone know where the harness goes to from the alternator? Harness is cut and other side of harness is no where to be found

Question 2. It has 3 12v batteries assuming it was 1 12v and 2 6v anyone have a wiring diagram for the batteries?

Thanks for any help!
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Old 09-14-2020, 09:02 AM   #2
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You have a "3G" alternator, pretty simple setup. And because it's very popular to swap a 3G into an older vehicle not blessed with one, we have nice diagrams like this:


More info there than you need, you basic takeaway is one big cable to the solenoid/battery. A small one that goes to the the solenoid too. (Some people cheat and connect this wire shorter but the alternoator works better if you connect it as shown). THe last wire goes into the back of the dash and should go to your "ALT" warning light. Hopefully there's a bit of cut wire dangling somewhere you can spot. On Fords this wire is often green with a red stripe.

My batteries are the same way. Normal 12 volt for the engine, and a pair of 12 volt batteries in parallel for the rest of the coach. First picture I found of batteries in parallel. Sorry it says 6 volt, but same idea.

In the picture it makes it like one very strong 6 volt battery. In our cases, 12 volts. If you were using 6 volt batteries you would instead hook them in "series". YOu don't want to do that with 12 volts as you would end up with 24 volts. Smoke, fire, and expensive problems would follow.
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Old 09-15-2020, 08:39 AM   #3
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Thank you!! Going to check it out today!
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Old 09-15-2020, 11:58 AM   #4
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So I wired it up as shown but still have no output from alternator. It basically seems if you have alternator grounded properly. And the main power wire as well as yellow/white wire connected to 12v it should be producing voltage right? Wondering if alternator has failed
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Old 09-15-2020, 06:57 PM   #5
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The Lt.Green/red wire shown on the diagram is the key. It basically tells the alternator when the ignition switch is "on" and tells the alternator to start working. Some people have reported that if that wire isn't connected to a warning light and/or the resistor listed the alternator doesn't work as expected. I haven't tested the theory, but I take that to mean you can't simply hook that wire to 12 volts positive. I've retrofitted a few of these and always used a light and resistor.
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Old 09-19-2020, 06:44 PM   #6
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Our ‘95 Bounder, also with the 460 has 3 12v batteries, 1 for the starter and 2 ‘house’ batteries.
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