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datsunbeginner
Re: Dash wiring questions - 1200 ute
#11
No life (a.k.a. DattoMaster)
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Quote:
I have an '84 B120 [1200 ute] and there are no wires in the dash loom for the tacho.
As previously advised, you need to run a pair of wires from the tacho. to the points side of the ballast resistor.
One wire connects to the resistor, the other to the wire that was previously on the ballast resistor.
You are simply extending the ignition wire back into the cabin, through the tacho. then back to the ballast resistor.
As a security measure, you could put a hidden toggle switch in series with these wires to give you a KILL SWITCH
There should be short wire on the rear of the tacho. with a female bullet connector on it.
That plugs into the main instruments to pick up 12V, just like the clock did.

Posted on: 2015/6/2 3:55
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---1976 B120 "THE GENERAL REE"--- Former build
---1980 B120 Vanilla Ice --- current build
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ddgonzal
Re: Dash wiring questions - 1200 ute
#12
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That's the difficult way to do it -- since the same b/w wire already runs into the dash, why add wires to go out and splice into it near the coil, when you can do it right in the dash loom?

Posted on: 2015/6/2 4:12
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datsunbeginner
Re: Dash wiring questions - 1200 ute
#13
No life (a.k.a. DattoMaster)
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I don't see any spare BW wires in my dash loom except for the one to the "cooler"

Posted on: 2015/6/2 16:06
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---1976 B120 "THE GENERAL REE"--- Former build
---1980 B120 Vanilla Ice --- current build
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ddgonzal
Re: Dash wiring questions - 1200 ute
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Right. It's not a "spare" wire, it is a main wire which you will tap into (cut it, and attach it to the tacho loop). You can tap into it near the IGN switch (easiest to find the wire as it is uncovered there).

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The factory already cut the wire on a coupe/sedan harness.
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The BW wires passes directly above the tachometer/clock spot. It goes from the IGN switch all the wire out to the coil.
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Posted on: 2015/6/2 21:55
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ddgonzal
Re: Dash wiring questions - 1200 ute
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I was thinking about this. If you connect near the coil, it lengthens the coil feed wire 3x as long as stock. Which will cut down on voltage a little bit. Others have done it and it works, but I'd connect right near the tachometer. It's neater with less side effects and less extra cables in the engine bay.

Posted on: 2015/6/3 10:00
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datsunbeginner
Re: Dash wiring questions - 1200 ute
#16
No life (a.k.a. DattoMaster)
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Thanks DD. That will be one mystery solved. I will look for the BW wire for the ignition, cut it and tap into the tachometer. Does it matter which order the wires from the tachometer connect to the cut BW wire in my dash harness?

Posted on: 2015/6/3 17:12
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---1976 B120 "THE GENERAL REE"--- Former build
---1980 B120 Vanilla Ice --- current build
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datsunbeginner
Re: Dash wiring questions - 1200 ute
#17
No life (a.k.a. DattoMaster)
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And also, where is the exact location of the wire to tap into?

Posted on: 2015/6/3 20:02
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---1976 B120 "THE GENERAL REE"--- Former build
---1980 B120 Vanilla Ice --- current build
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datsunbeginner
Re: Dash wiring questions - 1200 ute
#18
No life (a.k.a. DattoMaster)
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I cannot find the BW wire near the tach. It is only at the fuse box, ignition switch, and at the plug that connects to the engine harness

Posted on: 2015/6/8 3:13
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---1976 B120 "THE GENERAL REE"--- Former build
---1980 B120 Vanilla Ice --- current build
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ddgonzal
Re: Dash wiring questions - 1200 ute
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Yes, the wire goes between all three but you have to unwrap the harness to see. You can tap into it near the IGN switch (easiest to find the wire as it is uncovered there).

Posted on: 2015/6/8 4:40
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datsunbeginner
Re: Dash wiring questions - 1200 ute
#20
No life (a.k.a. DattoMaster)
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Riddle me this......why is there 2 blue wires to the cigarette lighter? Where does the second go?

Also, the diagram shows one single green wire to the flasher unit but the flasher unit has two connectors on it


Posted on: 2015/7/15 3:10

Edited by datsunbeginner on 2015/7/15 3:26:38
Edited by datsunbeginner on 2015/7/15 3:27:07
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---1976 B120 "THE GENERAL REE"--- Former build
---1980 B120 Vanilla Ice --- current build
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