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Old 11-26-2018, 02:10 PM   #1
SeventyOne
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Butt Splice Connection Question

I was working on my 64 F100 over the weekend and needed to replace the positive battery cable because the terminal clamp broke.

Got a new generic cable from the parts store and it has a smaller accessory wire with a butt splice connector coming off the larger terminal end (just like the one i removed).

Now time for the dumb question: once i strip the end off the wire that needs power and slip in into the splice connector...do i just crimp it? Heat it? Both? Throw the whole thing away because it's a Ford?

Pic of generic cable i got with open ended splice connector:
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Old 11-26-2018, 05:40 PM   #2
VetteVet
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Re: Butt Splice Connection Question

The butt connector is for a positive feed to any circuit that needs it, in the case of our trucks it would be for a fusible link over to the right fender junction.

I think a good crimp should do.
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Old 11-26-2018, 07:25 PM   #3
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Re: Butt Splice Connection Question

the style is crimp and go....but you are able to install heat shrink (good idea) before making the connection.
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Old 11-26-2018, 07:44 PM   #4
SeventyOne
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Re: Butt Splice Connection Question

thank you both.
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Old 11-29-2018, 03:45 PM   #5
LH Lead-Foot
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Re: Butt Splice Connection Question

Since what is shown is a "Red" cable with a battery end, the "Butt" connector lead would go to the alternator. If you have a junction block or a fuse box, I would prefer to solder it and then shrink tube it.

Other manufacture or different years, used several fusible links at the starters B+ terminal to feed the fuse box and the rest of the system.

Too many wires are shoved into the butt connector with several tiny copper wires not inside the metal crimp part. Only more expensive butt connectors are shrink tubing with some glue inside to help seal it.

The wire gauge is measured by the cross section or the actual wire core. If a 12 AWG wire has 16 tiny copper wires in it, if you loose 4 or 5 tiny copper wires from cutting the insulation off, or a bad crimp, the wire is effectively reduced to a 14 AWG wire and the ability to carry current is reduced.

Either way, if you have open ends and no shrink tubing over it, the possibility of water getting in and causing corrosion over time, is higher. If you have already crimped it just as shown, a good electrical tape will work to help seal it. I develop the habit of finishing a taped joint with a small dab or black weather strip adhesive. It hold the tape in place without un-raveling over time & heat.

Just too picky on electrical stuff as I have seen corroded scotch-locks for trailer lights, to a guy who cut his dash with a soldering gun, then fitted an actual house light switch to turn on the headlights. It worked...I guess.
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Old 11-29-2018, 04:08 PM   #6
SeventyOne
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Re: Butt Splice Connection Question

Quote:
Originally Posted by LH Lead-Foot View Post
Since what is shown is a "Red" cable with a battery end, the "Butt" connector lead would go to the alternator. If you have a junction block or a fuse box, I would prefer to solder it and then shrink tube it.

Other manufacture or different years, used several fusible links at the starters B+ terminal to feed the fuse box and the rest of the system.

Too many wires are shoved into the butt connector with several tiny copper wires not inside the metal crimp part. Only more expensive butt connectors are shrink tubing with some glue inside to help seal it.

The wire gauge is measured by the cross section or the actual wire core. If a 12 AWG wire has 16 tiny copper wires in it, if you loose 4 or 5 tiny copper wires from cutting the insulation off, or a bad crimp, the wire is effectively reduced to a 14 AWG wire and the ability to carry current is reduced.

Either way, if you have open ends and no shrink tubing over it, the possibility of water getting in and causing corrosion over time, is higher. If you have already crimped it just as shown, a good electrical tape will work to help seal it. I develop the habit of finishing a taped joint with a small dab or black weather strip adhesive. It hold the tape in place without un-raveling over time & heat.

Just too picky on electrical stuff as I have seen corroded scotch-locks for trailer lights, to a guy who cut his dash with a soldering gun, then fitted an actual house light switch to turn on the headlights. It worked...I guess.
Makes sense and good info.

I haven't done anything with it yet, both ends are loose currently. Truthfully I haven't even been able to determine what the wire I had to cut powers. It goes along the firewall and into the cab. I need to spend more time looking at it but when i was working on the truck Saturday this wasn't the intended project, the rear wheel seals were. I just needed to be able to move the truck to begin work and that broken terminal was an issue.

Anyways here's a pic i found on my phone of the original setup (and you can see the cracked battery terminal)

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And all her glory
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