Hot Rods I keep burning up alternators..

So I’m keep going through alternators. 2nd one in a week. I think it’s delco cs130. The “L” wire is running back to the ignition I think, but I haven’t traced the wire. Otherwise, it just has the one wire running to the battery. I pulled the wire to the battery and my voltmeter is only showing about one volt of output....just crappy starters from O’reillys, or am I doing something wrong?

 

Read the battery voltage with the engine off, then do it again with the engine running. If the voltage is the same, the alternator isn't charging. The voltage should be about 12.6v engine off on a charged battery. At idle if the alternator is working you should see over 13v but some of those single wire alternators don't charge much until the engine revs come up.

 

Whats the part# that you are using?

Have you tried to raise the RPM and see if voltage comes up?

 

Also that being a CS style alternator do you have FULL 12v going to the L plug
If so you will fry it every time

 

It uses a 4 blade connector, you will need to connect two of the wires to make it work.

https://www.hemmings.com/blog/article/delco-cs130-alternators/
https://www.novaresource.org/alternator.htm

 

yeah, you need to connect the S wire to the battery also

Also never disconnect an alternator output wire, and run the engine...they don't like that.

 

Thanks guys, guess I need to find the right adapter plug

 

https://www.oreillyauto.com/detail/...2-2-terminal-socket/s792/5820435?q=ec82&pos=0


here is your plug...