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914World.com _ 914World Garage _ /6 alternator wiring help needed

Posted by: tornik550 Apr 4 2015, 08:06 AM

I am getting close to the point where I will be starting my /6 rebuild. When I installed the fan/alternator- I just put it in with the wiring the same as from the previous owner. Before starting, I figured that I probably should check to see if it is correct. I took a picture with a bore scope. The wiring from the PO is different from the reference pictures that I found online. Will this setup work? I would change it to the way the reference pictures show however it is installed and I would prefer not to drop the engine. It is a SEV Motorola alternator.

Sorry about the picture- it's as good as I could get from a bore scope.

Attached thumbnail(s)

Posted by: tornik550 Apr 4 2015, 08:12 AM

The current setup (the letters correspond to the posts/plug on the alternator)
A- Black wire
B- Brown wire
C- empty
D- 2 red wires- one large and one small gauge
E- Blue wire
F- empty

Attached image(s)

Posted by: PanelBilly Apr 4 2015, 09:53 AM

I took a photo of my wiring before it put the schroud on. When I get home later today, I'll post it

Posted by: Maltese Falcon Apr 4 2015, 03:44 PM

Black, D-
Blue, Df (field)
Brown, neg.ground
should all go to your voltage regulator, which lives on your engine compartment circuit board.
Red, B+ is battery +12v.
Chilton repair book should have the layout for the voltage regulator, so you can cross reference the 3 connectors under the regulator to the black, blue, brown.
Marty

Posted by: tornik550 Apr 4 2015, 06:32 PM

It seems clear that the alternator was improperly hooked up. I was able to get it out and I am going to re-wire it.

Does anyone know why it would have been hooked up the way it was (other than just an error on the PO's part)?

Posted by: PanelBilly Apr 5 2015, 06:28 PM

Here's mine

Attached Image

Posted by: tornik550 Apr 5 2015, 06:49 PM

Thank you for the picture.

Are the cones/air guide that attaches to the back of the alternator necessary?

Posted by: tornik550 Apr 5 2015, 06:49 PM

Thank you for the picture.

Are the cones/air guide that attaches to the back of the alternator necessary?

Posted by: PanelBilly Apr 5 2015, 07:10 PM

I think so. They direct the cooling air over the top of the engine