CS130 Alternator wiring question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mocwon · 05-21-2005, 06:30 PM

Has anyone installed a CS130 alternator (later model GM) and if so how did you wire it up? I have no idiot light for the alternator.

neonlarry · 05-21-2005, 09:02 PM

The battery wire should be obvious. The S terminal isthe voltage sensing wire, hook the to the origional buss bar(red wires on DS fender well). The L terminal goes to a switched ignition source THRU A 35-100ohm 3+watt resistor. This circuit needs this resistor to keep from frying the electronics in the Alt.

71meangreenc10 · 05-21-2005, 09:12 PM

So if you have the light do you still need a resistor?

Smitty

neonlarry · 05-21-2005, 09:37 PM

^ no, use the light in place of the resistor.

mocwon · 05-21-2005, 11:15 PM

Quote:

Originally Posted by neonlarry

The battery wire should be obvious. The S terminal isthe voltage sensing wire, hook the to the origional buss bar(red wires on DS fender well). The L terminal goes to a switched ignition source THRU A 35-100ohm 3+watt resistor. This circuit needs this resistor to keep from frying the electronics in the Alt.

THANKS!!! That's exactly what I needed know.

dmec · 05-22-2005, 10:51 AM

what about if you are using a voltmeter, would that act as the resistor?

neonlarry · 05-22-2005, 11:20 AM

^No.

mocwon · 05-22-2005, 06:34 PM

I found a pigtail with the correct resistance in the wire that AC Delco makes for this; part # 8078 and cost $21.88 from Advance Auto parts.

neonlarry · 05-22-2005, 10:11 PM

Thats good to know, a lot of people have had trouble finding a resistor that will work.

chickenwing · 05-23-2005, 11:04 AM

Bought mine from partsamerica. http://www.partsamerica.com/ProductD...artnumber=8078

Nima · 05-23-2005, 03:18 PM

When I switch to internal regulator alt few months ago, I bought 75 ohm 3 watt resistor from a local electronic shop; 50 cents each, Still working well. I just coverd the resistor in some kind of sheild to protect it from heat and possible trauma. I bought 3 of those. if you like I can look for them. I don't promiss to find them though since my place is a mess right now.

chickenwing · 05-23-2005, 08:00 PM

You could definately make a nicer harness than that jumper I listed. This was an easy way to go though. Just plug it in.

**VetteVet** · 10-30-2005, 12:02 PM

Here is the cs130 conversion that I found on the board

http://www.chevelles.com/techref/tecref14.html

05-21-2005, 06:30 PM	#1
mocwon Keep On Truckin' Join Date: Mar 2003 Location: Buda, Texas Posts: 1,354	CS130 Alternator wiring question Has anyone installed a CS130 alternator (later model GM) and if so how did you wire it up? I have no idiot light for the alternator. __________________ Just Passin' Thru Some projects are like herding cats; others are like putting out fires; this one was like herding cats on fire.....

05-21-2005, 09:02 PM	#2
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,745	The battery wire should be obvious. The S terminal isthe voltage sensing wire, hook the to the origional buss bar(red wires on DS fender well). The L terminal goes to a switched ignition source THRU A 35-100ohm 3+watt resistor. This circuit needs this resistor to keep from frying the electronics in the Alt. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

05-21-2005, 09:12 PM	#3
71meangreenc10 Its a Truck Thing...... Join Date: Dec 2004 Location: Sierra Vista, Arizona Posts: 3,179	So if you have the light do you still need a resistor? Smitty __________________ 71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 69 C30 Former Motor Home, Flat Bed time 70 G20 Red-E-Kamp Conversion "I'm your Boogy Van"

05-21-2005, 09:37 PM	#4
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,745	^ no, use the light in place of the resistor. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

05-22-2005, 11:20 AM	#7
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,745	^No. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

05-22-2005, 10:51 AM	#6
dmec Senior Member Join Date: Jun 2000 Location: yucaipa ca Posts: 580	what about if you are using a voltmeter, would that act as the resistor?

05-22-2005, 06:34 PM	#8
mocwon Keep On Truckin' Join Date: Mar 2003 Location: Buda, Texas Posts: 1,354	I found a pigtail with the correct resistance in the wire that AC Delco makes for this; part # 8078 and cost $21.88 from Advance Auto parts. __________________ Just Passin' Thru Some projects are like herding cats; others are like putting out fires; this one was like herding cats on fire.....

05-22-2005, 10:11 PM	#9
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,745	Thats good to know, a lot of people have had trouble finding a resistor that will work. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

05-23-2005, 11:04 AM	#10
chickenwing Lovin' Life in Miss.! Join Date: Mar 2004 Location: Puckett, Mississippi Posts: 1,937	Bought mine from partsamerica. http://www.partsamerica.com/ProductD...artnumber=8078 __________________ The truck... you hear that? No really, you did hear that?!!!

05-23-2005, 03:18 PM	#11
Nima Blue 67 Join Date: Apr 2004 Location: Western WA Posts: 1,179	When I switch to internal regulator alt few months ago, I bought 75 ohm 3 watt resistor from a local electronic shop; 50 cents each, Still working well. I just coverd the resistor in some kind of sheild to protect it from heat and possible trauma. I bought 3 of those. if you like I can look for them. I don't promiss to find them though since my place is a mess right now.

05-23-2005, 08:00 PM	#12
chickenwing Lovin' Life in Miss.! Join Date: Mar 2004 Location: Puckett, Mississippi Posts: 1,937	You could definately make a nicer harness than that jumper I listed. This was an easy way to go though. Just plug it in. __________________ The truck... you hear that? No really, you did hear that?!!!

10-30-2005, 12:02 PM	#13
VetteVet Msgt USAF Ret Join Date: Jan 2005 Location: Kalamazoo, Michigan Posts: 8,718	Re: CS130 Alternator wiring question Here is the cs130 conversion that I found on the board http://www.chevelles.com/techref/tecref14.html __________________ VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative.

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