Anyone have any pointers on a 12V conversion?
This is Terri--walfords wife. I keep hearing about you,and am getting jealous. He says you answer the questions like a pro.,and he prints everything you say.
I wonder if you can tell us what you do for a living? Just curious. No pictures,as that might make him even like you more.LOL
Terri Walford-Miss56
This is Terri--walfords wife. I keep hearing about you,and am getting jealous. He says you answer the questions like a pro.,and he prints everything you say.
I wonder if you can tell us what you do for a living? Just curious. No pictures,as that might make him even like you more.LOL
Terri Walford-Miss56
OH OH!

He doesn't work fo the IRS or anything does he?
Tee hee, I thought I was in enough trouble being a wisenheimer with all these old trucking guys, but if I've got the guys wives responding, I guess I've REALLY done it!
Currently I'm a flight attendent for Southwest Airlines. (I know - "WHAT?")
It's my fall back career - pays the bills at the moment.
And I'm with you on the pictures - maybe someday. Despite the number of requests, posting pictures of myself on the internet would probably make my mother turn over in her grave! And that would be really uncomfortable for her since she's still living.
So, do you post as "Miss 56?" Ya oughta jump in! Sometimes I need the help!
Nice hearing from you!

Julie
Anytime Man... We might even get lucky and get it right sometimes...
Later...
Later Man...
Later Man...
Other places probably carry them as well, prices may vary!
J!
I got a request for the drawings this morning and sent them out. Am I just not seeing the sync in names....Tim?
The drawings are for a 12 volt conversion rewire, and if that wasn't you this morning (forgiv emy confusion, but I get about 20 requests a month for those), just click on my username and send me a regular e-mail. You don't have enought posts yet to use the PM function.
All I need is your regular e-mail address - just e-mail it to me and I'll send those to you.
Ford Trucks for Ford Truck Enthusiasts

Julie's Cool F1 - 12V Conversion Docs
If the page doesn't work, feel free to bother me.
You can trust her info.
Two points I might add is first DON't put a BA resistor on your starter!
Second is I'd recommend rewiring everything. Your wires were not designed to last 60 years, and the circuit breaker protection is rudimentary at best, certainly won't accomidate any modern electrical acessories. Most have been made into a total rats nest by PO's repairs and "modifications". Many here, yours truly included, have used and recommend using a rewiring kit such as produced by EZ Wire or It's a Snap. There are one or two more "famous" brands, but you will pay a lot extra for that fame.

AX is right about just starting from scratch on the rewires. It's really not that hard if taken one step at a time. That old stuff left in immediately becomes "the weakest link." Plus, if you do your rewire, I guarantee you will "know" your electrical system by the time you are finished. It's a good thing to know and will become completely un inhibiting.
I guess it depends on how far and how much of a restoration you plan to do, but for the (probably) thousands of dollars you will spend, adding a few extra dollars for top quality in what is the most unforgiving and difficult (from an accessability standpoint) system on your truck is very VERY good advice.
If you purchase quality materials (wire, connectors, etc) take your time, be patient, and do it right, you will never ever have to touch that electrical system again for as long as you own your truck. If you don't, you'll be tracing and troubleshooting forever. Your time, sanity and safety are worth the extra time and $$$$$.
I'm not sure if I mentioned this recently or not, but it's a nice point to remember.
With the original Power Point files, you can change the color of the lines on my drawings to match the color of wire you actually installed. If you print mine out and take the time to mark it up as you work, make a copy of the drawing and update it to the correct colors you are installing, when you are done, you will have an ACCURATE CUSTOM COLOR WIRING MAP OF YOUR TRUCK!!!!!! That makes adding stuff or finding a short (if you pinch a wire) a BREEZE!!!!!!!!! I look at those all the time!!!!!
I actually printed my set on 4x6 photo paper then took them to Kinko's and laminated them to keep in the glove box - like the fuse panels and what is where!
Windshield Wipers: if you have 6V electric wipers, you can switch the motor to a 12V by making up a new output lever from part of the 6V lever and part from the 12V. The switch will work as is. There is no fixed resistance in the wiiper two speed circuitry.
Heater: Easier to just put in a 12V heater motor and use a 12V switch, since the low speed uses a fixed resistance.
Gauges: I build a zener diode regulater on a PC board and mount it under the dash. Parts cost under $10 and it keeps all the gauges at 6V. The ammeter is a current loop and does not matter, but you will have to reverse the wire directioin since you are reversing the polarity. I will be happy to send a schematic for anyone interested. Another way is to use a 6V Tap on the battery and use a headlight relay to switch it on and off with the ignition or accessory lead from the ign. switch.
All bulbs, and whatever charging system you want, from 12V generator to one wire 12V alternators.
Ignition: Coil, coil resistor. Points, condenser are not affected as they are on the secondary side of the coil.
Horns: I would switch them to 12V models, they will draw way to much current if 6V horns are left in.
Directional signal Flasher: change to 12V.
Radio: If you are using a 6V radio, it will be a vibrator model and there are some things that are easy to do to convert to 12V. However, if you just want it to work with no hassle, use a Volt-A-Drop resistor for it. The Radio can be converted for about $100 if you have it done. There are several of us who can do that. There are also some who make AM/FM/CD players with Ford logos, but they don't have round radio models.
All switches, like the light switch, the wiper switch, directional signal switches, stoplight switch, dimmer switch, ignition switch, were made for twice the current that will flow at 12V, so they will work fine as is.
Horn Relay: change to 12V
Overdrive: Solenoid has to be changed, OD relay has to be changed, but kiskdown switch and governor are OK. Solenoid is expensive and hard to find, but there are a lot more 12V solenoids out there than 6V. OD relay is still made in 12V.
Battery: Obviously go to 12V. There are still batteries made that have a 6V tap made, and since all batteries are made up with 2V cells linked together, it is not hard to add a 6V tap. If you needed stuff to work at 6V for awhile due to your OD or radio or something else, you can run this 6V through a relay that you operate with IGN or ACC and inline fuse it to the area that has to be 6V.
Regards,
Alan
Windshield Wipers: if you have 6V electric wipers, you can switch the motor to a 12V by making up a new output lever from part of the 6V lever and part from the 12V. The switch will work as is. There is no fixed resistance in the wiiper two speed circuitry. Problem is with higher voltage the parking function tends to not work. Plus, I've run across three different types of switches on those. This sounds like a great idea - any parking problems with your switch?
Heater: Easier to just put in a 12V heater motor and use a 12V switch, since the low speed uses a fixed resistance. Problem is 12 volt heater motors for 51 and 52 Magic Aire Heaters are not available. It's adifferent size than the 48-50 which are available. A volta drop will p[ower your 6 volt Magic Air just fine.
Gauges: I build a zener diode regulater on a PC board and mount it under the dash. Parts cost under $10 and it keeps all the gauges at 6V. The ammeter is a current loop and does not matter, but you will have to reverse the wire directioin since you are reversing the polarity. I will be happy to send a schematic for anyone interested. Another way is to use a 6V Tap on the battery and use a headlight relay to switch it on and off with the ignition or accessory lead from the ign. switch.
All bulbs, and whatever charging system you want, from 12V generator to one wire 12V alternators.
Ignition: Coil, coil resistor. Points, condenser are not affected as they are on the secondary side of the coil.
Horns: I would switch them to 12V models, they will draw way to much current if 6V horns are left in. They do draw a lot. But if you are converting you will problaby be installing an alternator which produces 70 amps or more as opposed to the 30/35 amps of the old generators. I have 4 (yes FOUR) of the large 6 volt trumpet horns on my truck with a 12 volt horn relay (wired with 10 ga wire BTW) and then all work fine - very loud, but fine with no draw impact.
Directional signal Flasher: change to 12V.
Radio: If you are using a 6V radio, it will be a vibrator model and there are some things that are easy to do to convert to 12V. However, if you just want it to work with no hassle, use a Volt-A-Drop resistor for it. The Radio can be converted for about $100 if you have it done. There are several of us who can do that. There are also some who make AM/FM/CD players with Ford logos, but they don't have round radio models.
All switches, like the light switch, the wiper switch, directional signal switches, stoplight switch, dimmer switch, ignition switch, were made for twice the current that will flow at 12V, so they will work fine as is.
Horn Relay: change to 12V
Overdrive: Solenoid has to be changed, OD relay has to be changed, but kiskdown switch and governor are OK. Solenoid is expensive and hard to find, but there are a lot more 12V solenoids out there than 6V. OD relay is still made in 12V. 12V relays are very hard to find and very expensive. The entire overdrive system using a 6 volt relay and solenoid can be used on a 12 volt system with a vol-ta-drop.
Battery: Obviously go to 12V. There are still batteries made that have a 6V tap made, and since all batteries are made up with 2V cells linked together, it is not hard to add a 6V tap. If you needed stuff to work at 6V for awhile due to your OD or radio or something else, you can run this 6V through a relay that you operate with IGN or ACC and inline fuse it to the area that has to be 6V.
Regards,
Alan




