A 12 volt hot source - Ford Muscle Forums : Ford Muscle Cars Tech Forum
 
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post #1 of 5 (permalink) Old 04-15-2017, 06:48 PM Thread Starter
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A 12 volt hot source

Is there a place under the dash of a 63 ford that I can use as a hot wire (Batt) to a 4 term. relay for my electric fuel pump WITHOUT having to splice into the harness? Wanting to find a threaded terminal to just use a terminal ring, if there is one. Really don't want to come from under the hood with a dedicated hot lead for the relay and go through the firewall. If not, where do you guys go for a hot battery lead? Bud

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post #2 of 5 (permalink) Old 04-16-2017, 04:47 AM
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Re: A 12 volt hot source

You can use the accessory post on the back of the ignition switch.

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post #3 of 5 (permalink) Old 04-16-2017, 05:13 AM
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You should have 2 ignition accessory terminals on the fuse block which you can use either as your relay trigger, but there are no battery only terminals. if you want to feed the fuel pump from the battery, then you will have to at least run your trigger wire through the firewall. I would put the relay close to the battery and the small trigger wire through the firewall. You can hide the fuel pump power wire behind the inner fender and follow the frame back to the pump. Make sure you fuse the wire from the battery so you don't burn it up.
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post #4 of 5 (permalink) Old 04-16-2017, 12:22 PM
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Re: A 12 volt hot source

Good info!

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Putts drives a 1965 Galaxie. Rebuilt 390, 4100 on a Performer, MX, AC, PS, PB w Scarebird front discs on Cragar 17" S/S.
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post #5 of 5 (permalink) Old 04-16-2017, 02:42 PM Thread Starter
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Re: A 12 volt hot source

Thanks for your responses guys,but I already mounted the relay under the dash where it's out of the way. The wire from the fuel pump was routed in the loom from the trunk under the back seat and console up to the back of the new firewall cover to the relay. My trigger wire comes from the acc. term from the center of the ign. sw.
My Ford Galaxie schematic shows the battery wire going to the back of the ign. switch to a spade terminal. If I remove the rubber cover off of the ign switch, I think I can put one of those three way terminal things on the batt terminal and plug the battery wire to it and bring my battery wire from the 3rd terminal to the relay through a 15 amp fuse that way I can have everything under the dash. Lost some sleep trying to figger this out but should work. May even be able to put rubber cover back on the ign switch.

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