Alternator wires on a 3.0 -6 Options

[914 Ranch]

Got this 3.0 not sure of the year and think that the alt has an external regulator (small black box with 3 wires). Blue, black and brown. I believe that the blue one gets put with the blue from the alt. Where do the black and brown go? One should be a ground.

[914 Ranch]

I'm thinking black is ground and brown is going to the white. I remember a white wire coming out of the alt.
Now I'm going to go look for the white wire

[914 Ranch]

White wire is coming from the coil. Wires coming from the alternator​are red, blue and black.
I'm thinking brown is ground.
Only theory.

[914 Ranch]

Almost 100 views and no response.
What I need to know is where the wires go from the 6 pin on the ignition module and the 3 wires from the external regulator go.

[914 Ranch]

Foto 4 e fect

[914 Ranch]

Nother

[Mark Henry]

Ummm...isn't that a CDI?

[GeorgeRud]

I thought the 3.0 liter engines used an internal voltage regulator. And yes, the ribbed box is a Bosch CDI.

[Mark Henry]

If you look carefully at the regulator connector it's marked (DF, D+ and D-) it corresponds with what's on the alternator. The connector MALE on the reg.

My wire colours are below, but no clue if it's the same as yours. (note this is looking straight on the male connector on the reg.)

D-, brown


DF, black........................ D+, red/black stripe also has green/black stripe to idiot light

[Mark Henry]

On some 911 alternator's, D+ is marked 61+....it's the same thing.

Internal reg should only have B+ and the idiot light connection.

[IronHillRestorations]

Can you post a pic of the back of the alternator?

Do you know for sure what wires are definitely coming out of the alternator?

Is the 3.0 always been in the car, or is it a

All the 3.0's I've made harnesses for have had alternators that are internally regulated, but it's entirely possible that someone put an externally reg'd alternator.

In the 1st post, there's a voltage regulator mounted above the CDI box.

[IronHillRestorations]

Can you post a pic of the back of the alternator?

Do you know for sure what wires are definitely coming out of the alternator?

Is the 3.0 always been in the car, or is it a new install?

All the 3.0's I've made harnesses for have had alternators that are internally regulated, but it's entirely possible that someone put an externally reg'd alternator.

In the 1st post, there's a voltage regulator mounted above the CDI box.

[Mark Henry]

Another crazy 911 alternator point.

Your alternator may have two B+, two DF and two D- posts, but only one D+ (61+) post.
Just wire up one post of each only!

Don't try to jump B+ to B+, etc. as it won't work.

I have no clue why the doubles and either one will work.

[Mark Henry]

External reg will look like one of theses two: I have the one on the left.

(IMG:http://www.914world.com/bbs2/uploads_offsite/forums.pelicanparts.com-26-1512776020.1.jpg)

[914 Ranch]

I'll pull the fan cover tonight and take a picture cause I think the alt and the fan came from another motor. It has some broken blade's. This hole thing ran 2 weeks ago. I had to change some wires and now I'm going not putting it back correctly. Pic of the illegitimate external regulator.

[914 Ranch]

It plugged into a plug and the wires change color but the engine side of the connector is Porsche.
The ignition module is causing me problems too.

[914 Ranch]

About to change the bus bar in the engine bay and tried to start her before I pull the wires and put them into the box.



Should have taken a picture before...

[Mark Henry]

I've been told that a regulator is a regulator, but the the guys over on the bird swear you have to use a matching regulator. Bosch alt so bosch reg.


I had similar issue a little over a month ago, had both the alt and reg tested and they were OK. It worked when I tried the 2nd time.

Older guy at the shop, I gave him two bosch regulators I had, one mechanical and one electronic, he said they both worked but he prefered the mechanical.
Mechanical are the ones with the bigger case.

[914 Ranch]

It worked fine before I fucked with the car. The box up front works fine.



I just have to get the connectors linked together correctly.

[914 Ranch]

This car has to be my daily driver. We just got 1.86" of water in 2 hours. I installed this 2 days before Irma. We had 31" before that makes over 60 for the year. Sometimes driving the car is going to be wet.