Can someone identify this wire ?

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CSteppe82

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Red and black wire coming off of starter ?? Thanks


6/71
 
Search “exciter” wire.
 
That would be the lead from the solenoid that would supply 12V to the coil/points/ignition system during cranking to aid in starting.
 
No idea if my 71 starter is OEM. It doesn’t appear to have the exciter wire. My Coolerman harness doesn’t have an exciter plug.

Maybe your starter is a 75-later:meh:
I know my 76 harness has an exciter wire, not using it though.
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I love when factory wiring harness get all hacked to s***....


If your goal is to install a gear reduction starter motor, the only wires you need to focus on are the large red from the battery and black at the solenoid(if this were factory wiring, that black wire would have a white stripe)

Black wire is a push on female spade, this goes to the corresponding spade connector on the GR starter motor.
Red wire attaches to the large lug on the solenoid of the GR starter motor.
 
I have a question wrt this BR (black-red) wire and protection. The attached pics are from the Toyota Land Cruiser Repair Manual Chassis & Body manual, no date but the images match what’s on my ‘63 FJ45.

The BR wire originates at the same location on the starter as the heavy white wire, so it has unswitched power. On the early rigs that don’t have ammeters the heavy white wire directly feeds power to two of the terminals on the fuse box. The BR wire feeds power to the starter switch, which then feeds power to the starter (BW wire), coil (BY wire), and the other terminal on the fuse box (via G wire). As other have done as shown in an earlier post I’m going to install a fusible link in the white wire at the starter to protect that circuit in case of a short.
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But what protects the BR wire? It appears to pass directly to the starter switch and it’s smaller than the 10 or 12g white wire so it can’t handle as much current. Should the BR wire be included in the fusible link, if it can? Thoughts? @Coolerman @ToyotaMatt
 
I have a question wrt this BR (black-red) wire and protection. The attached pics are from the Toyota Land Cruiser Repair Manual Chassis & Body manual, no date but the images match what’s on my ‘63 FJ45.

The BR wire originates at the same location on the starter as the heavy white wire, so it has unswitched power. On the early rigs that don’t have ammeters the heavy white wire directly feeds power to two of the terminals on the fuse box. The BR wire feeds power to the starter switch, which then feeds power to the starter (BW wire), coil (BY wire), and the other terminal on the fuse box (via G wire). As other have done as shown in an earlier post I’m going to install a fusible link in the white wire at the starter to protect that circuit in case of a short.
View attachment 2212868View attachment 2212869View attachment 2212870

But what protects the BR wire? It appears to pass directly to the starter switch and it’s smaller than the 10 or 12g white wire so it can’t handle as much current. Should the BR wire be included in the fusible link, if it can? Thoughts? @Coolerman @ToyotaMatt

This is a good question. Which begs the question of what the wire services that Toyota thought it should be wired at the starter rather than at the fuse panel with everything else.
 
My harness is in pretty good shape, needs just a few repairs to connectors, so I don’t want to undo it to just get the BR wire out. I hate leaving abandoned wires too. Maybe I could splice an extension to the starter end of it and connect that to one of the white wire fed fused terminals on the fuse box, and then just put the fusible link on the white wire at the starter. The 15A fused R wire feeds lights, and the 30A fused GR wire feeds horn and fused GY wire feeds turn signals. Not sure if the BR needs 30A protection or if 15A is enough. Good chance I’d have foot on the brakes when starting (BR feeds the starter switch), but probably wouldn’t be honking the horn then.
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The electron world is slow these days, lol.
 
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