The 1947 - Present Chevrolet & GMC Truck Message Board Network

The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)
-   67-72 (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=220)
-   -   CS130 Alternator wiring question (https://67-72chevytrucks.com/vboard/showthread.php?t=157126)

mocwon 05-21-2005 06:30 PM

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. :confused:

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

Re: CS130 Alternator wiring question
 
Here is the cs130 conversion that I found on the board

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


All times are GMT -4. The time now is 03:42 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com