American Auto Wire
Username Post: AA Wiring Harness Questions        (Topic#338100)
DonSSDD 
Silver Supporting Member
Posts: 6607
DonSSDD
Loc: Nova Scotia, Canada
Reg: 08-21-01
08-07-16 06:29 AM - Post#2644202    

Donny, I bought the dash harness, engine, and headlight harnesses from you a while back for my 62 Chev 409. I had added Pertronics and a 3 wire alternator (stock GM, about a 1975) and you changed out my wiring to accommodate that.

I am now putting my 409 into a 63 Parisienne which has a Painless 10102 universal wiring harness in it. AAW is much easier to figure out than Painless. The Cdn Pontiac has an ammeter, not a GEN light, but otherwise is the same as the 62 or 63 Chev wiring wise.
Question#1.
I'm working on the alternator wiring, this is a pic of the harness from the 62 with your wiring (sold car), the red is obviously 12V battery power, the black is a ground, what do the pink and "brown" (?) wires do? I assume they run the GEN light?
Question #2
Can I use the stock alternator plug #1 or # 2 to use the ammeter gauge?
My thought is I can run a heavy gauge wire from the + Battery post to the hot wire on the alternator, plus the ground, and the alternator should work fine.
Question #3
The Pontiac had a 350 with HEI, I can just use the power wire from the HEI on the + side of the coil and my distributor should work fine. My question here is, the stock 62 harness had a pink and green wire on one connector that went to the + side of the coil, what did those wires do?

Thanks,
Don



63 Pontiac Parisienne Sport Coupe(CDN Chev mechanically (409, 4 speed),62 Bel Air SC (sold), 59 El Camino (sold), 62 Bel Air SC(sold), 63 SWC Vette (sold),
Member #2194


 
aawtech 
American Autowire "Site Sponsor"
Posts: 5030

Loc: Bellmawr, NJ
Reg: 09-11-06
08-07-16 05:33 PM - Post#2644355    
    In response to DonSSDD

  • DonSSDD Said:
Donny, I bought the dash harness, engine, and headlight harnesses from you a while back for my 62 Chev 409. I had added Pertronics and a 3 wire alternator (stock GM, about a 1975) and you changed out my wiring to accommodate that.

I am now putting my 409 into a 63 Parisienne which has a Painless 10102 universal wiring harness in it. AAW is much easier to figure out than Painless. The Cdn Pontiac has an ammeter, not a GEN light, but otherwise is the same as the 62 or 63 Chev wiring wise.
Question#1.
I'm working on the alternator wiring, this is a pic of the harness from the 62 with your wiring (sold car), the red is obviously 12V battery power, the black is a ground, what do the pink and "brown" (?) wires do? I assume they run the GEN light?
Question #2
Can I use the stock alternator plug #1 or # 2 to use the ammeter gauge?
My thought is I can run a heavy gauge wire from the + Battery post to the hot wire on the alternator, plus the ground, and the alternator should work fine.
Question #3
The Pontiac had a 350 with HEI, I can just use the power wire from the HEI on the + side of the coil and my distributor should work fine. My question here is, the stock 62 harness had a pink and green wire on one connector that went to the + side of the coil, what did those wires do?

Thanks,
Don





Don the smaller red and brown wires are the internal regulator wires. The red is the battery sense wire, the brown is the low voltage accessory trigger wires that excites the regulator and turns it on. It is also the default back to the check lamp.

With any aftermarket harness, you CANNOT use the ammeter. The systems are not wired for them, and there is no real way to trick them... believe me, I've tried for years LOL.

Get a voltmeter and hook it up to monitor the charging system.

Donny






 
DonSSDD 
Silver Supporting Member
Posts: 6607
DonSSDD
Loc: Nova Scotia, Canada
Reg: 08-21-01
08-08-16 04:44 AM - Post#2644414    
    In response to aawtech

Alternator- 62 red and brown small wires- the Painless has a red wire marked alternator excitor, is this the connection for the red wire? What connects to the brown wire slot?
Coil- what did the pink and green wire run to on the + coil post?
Can you "direct wire" an ammeter, outside the harness?

Thanks Donny.
Don

63 Pontiac Parisienne Sport Coupe(CDN Chev mechanically (409, 4 speed),62 Bel Air SC (sold), 59 El Camino (sold), 62 Bel Air SC(sold), 63 SWC Vette (sold),
Member #2194


 
aawtech 
American Autowire "Site Sponsor"
Posts: 5030

Loc: Bellmawr, NJ
Reg: 09-11-06
08-08-16 06:13 AM - Post#2644434    
    In response to DonSSDD

  • DonSSDD Said:
Alternator- 62 red and brown small wires- the Painless has a red wire marked alternator excitor, is this the connection for the red wire? What connects to the brown wire slot?
Coil- what did the pink and green wire run to on the + coil post?
Can you "direct wire" an ammeter, outside the harness?

Thanks Donny.
Don



Don, I really can't get into engineering on the Painless kit, not my design. The red wire is not an exciter wire though, it is a (battery power) sense wire to let the regulator know the status of the charging system is. The brown wire is the exciter coming from the accessory/ignition. If the exciter wire was battery powered, your regulator would be on all the time and would draw the battery down.

No, the way a GM ammeter works, it has a shunt built into it and to is designed to read the charge over a given length, and path of wire. When you change that path, and the length of wire, the gauge doesn't work. It's ot like an aftermarket gauge.

Regarding the pink and green wires on a stock harness, the pink was your ignition source, and the green was the bypass coming up from the starter that energizes the coil in the crank position as the ignition drops dead in the cranking position.

Donny




 
DonSSDD 
Silver Supporting Member
Posts: 6607
DonSSDD
Loc: Nova Scotia, Canada
Reg: 08-21-01
08-08-16 07:40 AM - Post#2644448    
    In response to aawtech

Thanks Donny, very helpful.

63 Pontiac Parisienne Sport Coupe(CDN Chev mechanically (409, 4 speed),62 Bel Air SC (sold), 59 El Camino (sold), 62 Bel Air SC(sold), 63 SWC Vette (sold),
Member #2194


 
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