alternator model type

[simplyconnected]

You don't need the fan on your new alternator. You DO need a small spacer that keeps your generator pulley away from the alt housing (or it will rub). Alternators have internal fans. - Dave

[Guest]

I went a head and ordered a dual pulley off of summit racing and it fit perfectly.

Here's my next question. I am almost finished with the wiring of the new alternator, but according to the wiring diagram on the trl is says I need to wire the thick yellow wire coming from the starter relay to the yellow wire coming off of the horn relay. It was originally connected to the voltage regulator I removed. It seems that my horn relay had two yellow wires coming off of the voltage regulator. Do I connect both yellow wires from the horn relay to the thick yellow wire from the starter relay

[jopizz]

I'm not sure where you are seeing two yellow wires. You should have the thick yellow wire on the voltage regulator that goes to the starter solenoid connected to a thinner yellow wire going to the horn relay. The other two wires on the relay are blue-yellow to the horn button and black to the horns. When I went to an alternator I left the voltage regulator in place just for looks and gutted the inside. I left the wires connected the way they were on the voltage regulator.

John

[YellowRose]

alternator model type

The same thing was done on my '59 when I converted to an alternator. The VR was left in place and just the wiring to the Gen light was used. Nothing else in the VR had to be used. I see that he removed his VR from the car.

[simplyconnected]

The voltage regulator does nothing after you mount a self-regulating alternator, so you are certainly at liberty to remove it.

If you do, the Horn Relay needs power. You have two choices:
You can also remove the short yellow wire that formerly went to the regulator, then connect the #10 yellow wire that was on the regulator, and simply swing it over to the LH terminal of your horn relay OR,
You can remove the large (#10) yellow wire and simply run your own smaller (#14 or 16) wire from the Horn Relay's LH terminal to the Starter Solenoid, to pick up +12v.

That leaves only one wire remaining, a small GEN light wire (Yellow-Black). At this point it does nothing but it could be your new alternator's 'sense' wire, to tell the alternator that your Key Switch is turned on.

If you have a one-wire alternator, you're done. It cannot use the GEN wire so you might as well tape it off. Ray has a one-wire and he claims his GEN light works. If it is connected to the yellow +12 wire, that would make it NOT work because then the light would be connected at both ends to +12.

So, in a nutshell... remove the Voltage Regulator, remove both yellow wires, run a new wire from the Horn Relay's LH terminal to the Batt + (Starter Solenoid) and finally, use the small Gen (Yellow-Black) wire for your 'sense' on a 3-wire alt. - Dave