CS130 Alternator Install Help?
Thread Starter
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Joined: Jan 2005
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CS130 Alternator Install Help?
Hello,
I just installed a new Delco CS130 Alternator per the directions on the following link:
http://photos.imageevent.com/durango...%20Install.pdf
Now it is not charging at all. Does anyone have any suggestions? What can I check to determine the problem?
Thanks alot...
~Jim
I just installed a new Delco CS130 Alternator per the directions on the following link:
http://photos.imageevent.com/durango...%20Install.pdf
Now it is not charging at all. Does anyone have any suggestions? What can I check to determine the problem?
Thanks alot...
~Jim
Le Mans Master
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
You need a test light, make one from a brake light bulb. Unplug the connector from the side of the alt. Connect the light from ground to the L terminal on the connector, thats the brown wire in the pic. With the key on that should light the Gen Lighton the dash about half bright, if it does, then ground that wire and the Gen light should go full bright.
Now connect the test light to the Red wire on the connector and ground, Key on = light bright, key off = light on, do not ground this wire.
reconnect the connector to the alternator and check voltage on the Bat term on the back of the alt, it should equal battery voltage.
Start it up, same check alt should be putting out about 14.~ volts. If not there is an alternator problem, get it tested
edited
Now connect the test light to the Red wire on the connector and ground, Key on = light bright, key off = light on, do not ground this wire.
reconnect the connector to the alternator and check voltage on the Bat term on the back of the alt, it should equal battery voltage.
Start it up, same check alt should be putting out about 14.~ volts. If not there is an alternator problem, get it tested
edited
Burning Brakes
Joined: Nov 2005
Posts: 1,143
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From: Leander Texas
Did it charge at all?
The plug has three wires. each with a small letter on the plug
The Red wire goes to the Red wire on your existing harness [battery positive]
The Brown wire [labled L] goes to your existing harness brown wire [lamp]
The Black wire [labled F] on the plug goes to a fused, hot in run power source. I found this researching the wire schematics for the TPI that I installed. Without this wire connected it would not charge. The f terminal may or may not be used depending on the origional application of the alernator you are using.
http://www.alternatorparts.com/cs130_sbpage1.htm
The plug has three wires. each with a small letter on the plug
The Red wire goes to the Red wire on your existing harness [battery positive]
The Brown wire [labled L] goes to your existing harness brown wire [lamp]
The Black wire [labled F] on the plug goes to a fused, hot in run power source. I found this researching the wire schematics for the TPI that I installed. Without this wire connected it would not charge. The f terminal may or may not be used depending on the origional application of the alernator you are using.
http://www.alternatorparts.com/cs130_sbpage1.htm
Last edited by DR.Jay; Jul 13, 2007 at 06:23 AM. Reason: posted referance
Thread Starter
Advanced
Joined: Jan 2005
Posts: 71
Likes: 11
You say "The Black wire [labled F] on the plug goes to a fused, hot in run power source. I found this researching the wire schematics for the TPI that I installed. Without this wire connected it would not charge. The f terminal may or may not be used depending on the origional application."
I don't understand. The original directions told me to clip off the black wire and not hook it up. Do you mean it actually does need to be hooked up to an ignition on hot power source?
BTW the alternator does not charge at all. Also, I had the alternator tested and it is fine. And, the old alternator did work, but the charging was not strong, so I got this alternator for an "upgrade".
Any help is GREATLY appreciated.
~Jim
I don't understand. The original directions told me to clip off the black wire and not hook it up. Do you mean it actually does need to be hooked up to an ignition on hot power source?
BTW the alternator does not charge at all. Also, I had the alternator tested and it is fine. And, the old alternator did work, but the charging was not strong, so I got this alternator for an "upgrade".
Any help is GREATLY appreciated.
~Jim
Team Owner
Joined: Oct 2004
Posts: 23,831
Likes: 10
From: Springfield MO
St. Jude Donor '07
There are different versions of the CS series alternators. If there are any wires coming out of that plug than the big red wire and the brown wire on the "L" pin, you'll have to figure out what those other wires are supposed to be doing.
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Hello,
I just installed a new Delco CS130 Alternator per the directions on the following link:
http://photos.imageevent.com/durango...%20Install.pdf
Now it is not charging at all. Does anyone have any suggestions? What can I check to determine the problem?
Thanks alot...
~Jim
I just installed a new Delco CS130 Alternator per the directions on the following link:
http://photos.imageevent.com/durango...%20Install.pdf
Now it is not charging at all. Does anyone have any suggestions? What can I check to determine the problem?
Thanks alot...
~Jim
Jim - What year is your Vette and does it have a GEN light in the center gauge bezel?
The brown/white wire to the alt, aside from the red one, is the important one. In cars with a GEN light it leads to the alt from that bulb which adds resistance to the system. This is needed for the alternator to charge.
Sixfooter was touching on this, and basically if you don't have that GEN light you need an inline resistor to take place of the bulb.
Instructor
Joined: Jul 2007
Posts: 152
Likes: 0
Jim - What year is your Vette and does it have a GEN light in the center gauge bezel?
The brown/white wire to the alt, aside from the red one, is the important one. In cars with a GEN light it leads to the alt from that bulb which adds resistance to the system. This is needed for the alternator to charge.
Sixfooter was touching on this, and basically if you don't have that GEN light you need an inline resistor to take place of the bulb.
The brown/white wire to the alt, aside from the red one, is the important one. In cars with a GEN light it leads to the alt from that bulb which adds resistance to the system. This is needed for the alternator to charge.
Sixfooter was touching on this, and basically if you don't have that GEN light you need an inline resistor to take place of the bulb.
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Le Mans Master
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
there needs to be resistance on that line (either a resistor or a light bulb) for current limitation for the exciter coil on the alternator. It will set the maximum current fed to the coil. Without it the alternator will burn the exciter coil or the regulator (or both)
Team Owner
Joined: Oct 2004
Posts: 23,831
Likes: 10
From: Springfield MO
St. Jude Donor '07
there needs to be resistance on that line (either a resistor or a light bulb) for current limitation for the exciter coil on the alternator. It will set the maximum current fed to the coil. Without it the alternator will burn the exciter coil or the regulator (or both)
Advanced
Joined: Mar 2007
Posts: 91
Likes: 0
From: London, UK
try this link. z-man posted this on one of my threads regarding not having a "GEN" light on the dash. I have one so it didn't apply to me but it might help you out. this is for a CS144 but the procedure is the same for a CS130. good luck 
http://temp.corvetteforum.net/c3/zma...ternator01.htm
http://temp.corvetteforum.net/c3/zma...ternator01.htm
Le Mans Master
Joined: Jan 2001
Posts: 6,683
Likes: 1,364
Here's how I figured out how to do my CS-144...
The site below tells you how to figure out which adapter to buy for your CS-144 tie in to your 12SI: I also added the key paragraph below in case you cannot open it.
http://72.14.253.104/search?q=cache:...lnk&cd=2&gl=us
"If you are unsure which adapter to use, measure the resistance of the exciter line. Disconnect the positive battery cable and the alternator plug. Connect an ohm meter between the #1 terminal on the plug end of the alternator harness and the end of the positive battery cable. Turn the ignition key to the "on" position and read the ohmmeter. If resistance is less than 35 ohms, use adapter #8078. If it’s between 35-350 ohms, use #8077. If it’s more than 350 ohms, you have excessive resistance somewhere in that circuit which needs to be repaired, first."
And below is a previous post I made with some more info:
http://forums.corvetteforum.com/show....php?t=1635804
Hopefully this gets you going in right direction. I'm not absolutely certain that the same measurement values apply to the CS-130, but I suspect they do. I just bought an adapter at NAPA after measuring the resistance on my circuit.
http://72.14.253.104/search?q=cache:...lnk&cd=2&gl=us
"If you are unsure which adapter to use, measure the resistance of the exciter line. Disconnect the positive battery cable and the alternator plug. Connect an ohm meter between the #1 terminal on the plug end of the alternator harness and the end of the positive battery cable. Turn the ignition key to the "on" position and read the ohmmeter. If resistance is less than 35 ohms, use adapter #8078. If it’s between 35-350 ohms, use #8077. If it’s more than 350 ohms, you have excessive resistance somewhere in that circuit which needs to be repaired, first."
And below is a previous post I made with some more info:
http://forums.corvetteforum.com/show....php?t=1635804
Hopefully this gets you going in right direction. I'm not absolutely certain that the same measurement values apply to the CS-130, but I suspect they do. I just bought an adapter at NAPA after measuring the resistance on my circuit.
Team Owner
Joined: Oct 2004
Posts: 23,831
Likes: 10
From: Springfield MO
St. Jude Donor '07
130, alt, alternatoe, alternator, charge, cs, cs130, delco, exciter, intermittent, light, plug, resistance, resistor, wire
