kevdog442

This one jumps the F and 4 together and the 2 and 3 terminals together

kevdog442

Like this

MDchanic

I can't make heads nor tails of the second picture, but the first one and the third one are doing the same thing I recommended, but in a different way.
It's still connecting the #1 to the ALT light and the #2 to the Hot wire.

I think this is a problem related to the way it's connected, the adapter or whatever.

Try making the connections directly, as I described and let us know.

- Eric

kevdog442

Ok Eric I'll try your way. Thanks

garys 68&72

I'm not sure what the "conversion kit" is supposed to do. Just wire it correctly, lose the old regulator. If you don't have 12V at the sensor/excitation wires, it's wrong.

Octania

When an alternator tries to overcharge me, I just tell it, "no way, I am not paying that much!"

garys 68&72

If you were a duck would you tell it, "put it on my bill"?

kevdog442

Basically it loses the reg and jumpers terminals together. It is supposed to wire it correctly. I have 12v at both alt plug wires (sensor/excit). One constant, one with ign. on. But voltage at the battery is 15+.
Still going to try Eric's way.

garys 68&72

Ah, think I got it now. You still have the external regulator, it's just not hooked to any wiring. The conversion plug takes it's place, jumpering the excitation/sensor wires to the existing regularor/field wires directly to the internally regulated alternator via the new pigtail.
When you check voltage at the alternator 2 wire plug, it needs to be plugged into the alternator and running. Guessing your less that 1V measurements earlier were the alt plugs disconnected.

kevdog442

Right.

stellar

The wire in the alt plug going to the #2 terminal should have power at all times. Terminal #1 should have power with key on and no power with key off. Test these wires with alt plug out of alt. I still suspect the wires are reversed.

RROLDSX

If your battery is dead or low the alternator can put more than 14.5 Volts until the battery is charged.

pmathews

Just brainstorming here, are we sure that the alternator is internally regulated?

I'm asking because this sounds like an 'un-regulated' alternator. When my external voltage regulator went south, I was running really high voltage at higher RPMs (17+ volts). When I replaced the regulator, it fixed the voltage spikes. That's why I'm wondering if the alternator really has an internal regulator.

I suppose you could check the part number, etc... but maybe you can wire to the old external regulator (in the traditional way) and see if that brings your voltage under control?

It may be a waste of time, just trying to help...

MDchanic

I'm not saying that this is impossible, but it shouldn't.

While your battery is very low, it may accept a good deal of current, and this may pull the voltage low, but it should not go high.

Current (ammeter), on the other hand, will read high.

- Eric

MDchanic

The internally and externally regulated alternators have completely different cases and plugs. No need to look up part numbers.

If the two prongs of the plug are like this : — — , it's internally regulated.
If they're like this: | | , it's externally regulated.

- Eric

kevdog442

Double checked, term 2 has 12v. Terminal 1 none until key is on

kevdog442

Ok first of all I have to apologize for making this such a long thread, (but it's not all my fault, I still don't know how we got on the subjects of what dads tell ya and vomiting out windows) but I really do appreciate your help. I've learned a lot.

Anyway I hope I've got it fixed, I'm thinking the voltage in the sensor wire was fluctuating because it was not making a good connection to the new plug adaptor. Does this sound feasible? I was checking the voltage at the original plug and it was 12v but when hooked to the new adaptor it was sometimes 12v sometimes less or none at all. I took the plug off and wired the alternator directly. Now 14v all the time.
It usually is something simple...

MDchanic

There ya go!

It certainly is.

Also, I never trust "kits." If you do it yourself, you know it's done right.

- Eric

garys 68&72

I kinda like the "dad told me" and vomit parts.....