blackbeauty

Hi all,

I'm putting one of these alternator's in my car to replace the CS130 which suffers from the famous over heating problem. However, my car is a little special as I've put a 1989 305 TPI engine in my 82 Trans Am and I don't have a charge light for the alternator. The old choke light no longer functions.

From searching the internet, everyone seems to say that if you don't have the charge light, you need a resistance of 35-330ohms or something on the pin L of the alternator. However, the 1989 TPI wiring doesn't use pin L at all, instead it uses F (in addition to Battery and S).

According to the 1989 factory manual wiring diagram, the only difference between F and L is that F has a resistance already inline. The other end of this resistance connects up to pin L, which then connects to the "turn on input", to use the manual wording. I am unable to measure this resistance however.

So here are my questions...

Where should I put my resistor?
Should I leave the factory wiring as is on pin F and splice in a resistor?
Or, should I re-pin the alternator plug and move the wire from pin F to pin L with a resistor in place?
If I were to alter the plug to use pin L instead of pin F and keep the CS130 in place, what effect would that have?

Thanks!

Fullsizewagon

This site says a lot (literally)..: http://www.offroaders.com/tech/Alternator-Theory.htm