Quick Wiring ?
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Mountain Pass
Joined: Mar 2024
Posts: 149
Likes: 101
From: Pennsylvania
Quick Wiring ?
So I am starting to go over my 49 F4. It looks like someone put a 12 volt battery and wired it for positive ground. Everything else seems to be catered to the original 6 volt positive ground. Much of the wiring is dismal and sketchy with many bare wiring/splices. I plan on re-wiring the whole thing myself, so I can customize as needed.
I ordered a 6 volt positive ground one wire alternator to be the heart of the system. I AM CURRENTLY looking for a 3 door Recirculating heater/defroster for the truck to replace the one I have. Here are my questions.......
What gauge wire do I want to run for the various circuts?
What gauge should I be using for the 6 volt battery cables?
Any other pointers for my system?
I ordered a 6 volt positive ground one wire alternator to be the heart of the system. I AM CURRENTLY looking for a 3 door Recirculating heater/defroster for the truck to replace the one I have. Here are my questions.......
What gauge wire do I want to run for the various circuts?
What gauge should I be using for the 6 volt battery cables?
Any other pointers for my system?
Parts Nerd Extraordinaire
Joined: Sep 2010
Posts: 4,327
Likes: 1,759
From: Western NY
For the battery and starter cables, you should be using the heaviest gauge you can, at least 00 by most accounts.
The wiring diagram information can be found in the shop manual or you can purchase a colorful printed diagram form here https://classiccarwiring.com/product...wiring-diagram
Instead of making it up wire by wire, many would suggest getting an original style 6V harness set from Chuck's Trucks LLC. He is best dealt with by phone and may also be a have in his inventory serviceable used components for your brake booster and heater units that you are seeking.
One last tip is to install the new harness as you go along but by bit removing the old harness.
The wiring diagram information can be found in the shop manual or you can purchase a colorful printed diagram form here https://classiccarwiring.com/product...wiring-diagram
Instead of making it up wire by wire, many would suggest getting an original style 6V harness set from Chuck's Trucks LLC. He is best dealt with by phone and may also be a have in his inventory serviceable used components for your brake booster and heater units that you are seeking.
One last tip is to install the new harness as you go along but by bit removing the old harness.
Thread Starter
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Mountain Pass
Joined: Mar 2024
Posts: 149
Likes: 101
From: Pennsylvania
Yeah, Chucks Trucks is who I am getting the booster from! I do have the owners manual and truck manual, but I do not remember seeing wire gauge sizes. I was going to do a whole wiring harness for easy plug and play, but the one wire alternator will eliminate a ton of wires from the harness.
Parts Nerd Extraordinaire
Joined: Sep 2010
Posts: 4,327
Likes: 1,759
From: Western NY
Yeah, Chucks Trucks is who I am getting the booster from! I do have the owners manual and truck manual, but I do not remember seeing wire gauge sizes. I was going to do a whole wiring harness for easy plug and play, but the one wire alternator will eliminate a ton of wires from the harness.
Another pointer is that some of the bullet connectors Ford liked to use all over in this era are of a somewhat obtuse size as opposed to the more common .157 and .197 found today. These are roughly a .180 size connector (probably .177 in practice). The following series from Napa work in this instance:
14-16 awg Male 724304
14-16 awg Female 724114
18-22 awg Male 724103
18-22 awg Female 724112
You can also try the original Ford part number B-14486 for male reproductions. However, it usually isn't clear if the vendor will supply crimp on or solder on versions. Some vendors have reportedly intermingled stock which is disappointing. The female/female is B-14487.
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