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Swimmerboy2112's 1986 4Runner Build-Up Thread

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Old Nov 24, 2010 | 04:27 PM
  #1621  
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From: Walnutport, PA
Originally Posted by CamTom12
Relays are really simple if you can visualize them. Pin 85 is your switched power source (like your keyed 12V or your switch itself). Pin 86 runs straight to ground. Pin 30 is your power source, usually straight from the battery pos. Pin 87 runs to your accessory that you're installing. When you turn on power to Pin 85, Pin 87 gets power. If you're running a 5-Pin Relay, just ignore Pin 87a.

Unless you want something to recieve power when the switch is off...

Here's a diagram:


This is depicted with Pin 85 receiving power.
Alright that makes sense. What's the coil?
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Old Nov 24, 2010 | 04:47 PM
  #1622  
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I ran my ground to 85, since that's what the diagram I had told me to use, lol.... It works fine. It helped me to think straight, as this is all new to me, and so I just visualized "Power comes to 30, The Switch, on 86, flips it open to allow 87(the lights) to receive the power from 30. 85 is Ground, and I capped off 87A with a heat Shrunk sealed spade connector, then heated up the bottom half that had heat shrink sticking out and pinched it together... now it's totally sealed up, as are all the rest.

I was told I could have used either 85 or 86 for ground... I just used 85 because it helped me, like I said, make it more 'in order'.(I know, in my thinking, ...it was in order, hahaha.)
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Old Nov 24, 2010 | 05:27 PM
  #1623  
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From: Walnutport, PA
Originally Posted by ChefYota4x4
I ran my ground to 85, since that's what the diagram I had told me to use, lol.... It works fine. It helped me to think straight, as this is all new to me, and so I just visualized "Power comes to 30, The Switch, on 86, flips it open to allow 87(the lights) to receive the power from 30. 85 is Ground, and I capped off 87A with a heat Shrunk sealed spade connector, then heated up the bottom half that had heat shrink sticking out and pinched it together... now it's totally sealed up, as are all the rest.

I was told I could have used either 85 or 86 for ground... I just used 85 because it helped me, like I said, make it more 'in order'.(I know, in my thinking, ...it was in order, hahaha.)
Can you draw a diagram? I'm a visual learner lol
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Old Nov 24, 2010 | 05:46 PM
  #1624  
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From: Mt. Hood, OR / Ft. Leonard Wood, MO
here is the diagram he was talking about.
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Old Nov 24, 2010 | 05:53 PM
  #1625  
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From: Walnutport, PA
Originally Posted by gonovr
here is the diagram he was talking about.
Let me make sure I got this right, I run the power wire from the lights to the relay and I just ground the lights ground wire to the frame?
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Old Nov 24, 2010 | 05:55 PM
  #1626  
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From: Mt. Hood, OR / Ft. Leonard Wood, MO
Originally Posted by Swimmerboy2112
Let me make sure I got this right, I run the power wire from the lights to the relay and I just ground the lights ground wire to the frame?
You got it, lights + go to 87 on the relay, and - goes to a good ground on the body, frame, battery, etc.
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Old Nov 24, 2010 | 05:59 PM
  #1627  
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From: Walnutport, PA
Originally Posted by gonovr
You got it, lights + go to 87 on the relay, and - goes to a good ground on the body, frame, battery, etc.
Alright thanks gonovr! I'll have to pick up some fused wires then go to town.
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Old Nov 24, 2010 | 07:33 PM
  #1628  
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Originally Posted by Swimmerboy2112
Let me make sure I got this right, I run the power wire from the lights to the relay and I just ground the lights ground wire to the frame?
You run the power wire from the relay to the lights and the ground from the lights to the frame, yes.



And the coil in the other picture is just the thing inside the relay that makes it work. Think of it as a referenced switch. When it sees power through 85/86, the coil turns on (switch turns on) and allows power through 30 to 87.
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Old Nov 24, 2010 | 07:59 PM
  #1629  
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From: Lake Havasu, AZ
1. Power wire from lights(Positive) to #87 Pin(You join those 2 wires together onto a 10G wire,then onto #87 Pin).
2. Ground wire from lights(Negative) to Frame(I used the Cross Member, there are tapped holes)
3. Power supply to relay(which also powers the lights) goes from Battery to #30
4. Main Fuse goes between Battery to #30 Pin and should be no more than 12" from the Positive Battery Term.
5. Relay ground goes from #85 Pin to somewhere very near by on body
6. Switch gets wired to #86 Pin and Driver Kick Panel Fuse Block(I used an Add-a-line in the Ignition Fuse Hole---bottom right---Ignition fuse goes back in the add-a-line closest to the fuse block and 10A fuse can go on outer fuse hole on add-a-line)I used the Ignition fuse because that way, the lights CAN NOT be left on with the key switched to OFF or just plain out of the key hole.


If you look at my build thread, Brian, I put pretty good pictures of everything, just for that reason.... because I'm just learning electrical, for one....and secondly, I like visual aide! lol.
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Old Nov 24, 2010 | 08:24 PM
  #1630  
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deja-vu, anyone?
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Old Nov 25, 2010 | 04:33 AM
  #1631  
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From: Wilkes-Barre, PA, USA
Originally Posted by irab88

you all beat me to it lol.

or you can check in with Chef's thread, he just did his, even though some of us were not 100% accurate I guess. But his is working. lol

BTW, I still have to relay mine up. Only thing I have been waiting on is a good fuse block, because I got too many accessories as I sit now. haha. ie CB, associated CB linear amp, Stereo amp, Fogs, and "upgraded" headlight harness.

Only thing I am gonna do alot different is retrofit a deck lamp switch from a 4runner as my fog switch. I just got to fine a diagram of the wires lol. Haven't been looking to hard for it though.

Last edited by xxxtreme22r; Nov 25, 2010 at 04:37 AM.
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Old Nov 25, 2010 | 10:44 AM
  #1632  
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From: Walnutport, PA
Originally Posted by irab88
Forgot about this, yes!
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Old Nov 25, 2010 | 12:33 PM
  #1633  
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yes, that's part of the beauty of the 12v systems on a vehicle. The metal body acts as the common ground. Thus your negative battery cable is attached directly to the chassis (body) of the vehicle.
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Old Nov 25, 2010 | 12:52 PM
  #1634  
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Yeah that makes things a little bit easier.
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Old Nov 27, 2010 | 08:54 AM
  #1635  
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But if whatever your attaching to, ie a bumper or roof mounted lightbar, isn't bolted or welded directly to bare metal you likely won't get a good ground and may want to either clean off the paint at one of the points of attachment or better it to run a ground wire back at least to a known good grounding point. Just a little food for thought.

Your Rig looks great to by the way!!
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Old Nov 27, 2010 | 12:58 PM
  #1636  
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From: Walnutport, PA
Originally Posted by grant526
But if whatever your attaching to, ie a bumper or roof mounted lightbar, isn't bolted or welded directly to bare metal you likely won't get a good ground and may want to either clean off the paint at one of the points of attachment or better it to run a ground wire back at least to a known good grounding point. Just a little food for thought.

Your Rig looks great to by the way!!
Yeah i know enough about electrical to get a good ground lol.

And thanks man!!
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Old Nov 28, 2010 | 03:56 AM
  #1637  
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come on you had to learn something at school lol
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Old Nov 28, 2010 | 06:33 AM
  #1638  
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no, we just learn everything from others on yt

any updates, brian?
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Old Nov 28, 2010 | 09:21 AM
  #1639  
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From: Walnutport, PA
Originally Posted by irab88
no, we just learn everything from others on yt

any updates, brian?
haha exactly!

Updates hmm lets see, got a new radio surround and hood bug deflector and altimeter hood from Wyoming09. I helped him at his shop a little bit. And the truck is going in to the shop next Friday.
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Old Nov 29, 2010 | 09:59 AM
  #1640  
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You got a tilto-altimeter for the dash? If so, cool...There's quite a few threads if I remember right on installing them. Not sure you'd need that.......and not sure that's what you got, ..OH FORGET IT! lol, hahaha.

And, ......going into the shop for what?
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