Scapy Posted March 24, 2015 Share Posted March 24, 2015 Wiring my alternator from scratch, want to use the stock voltage regulator. Ive done tons of research but it seems I am not able to really find anything on the stock alternator setup. So there is ground and battery as well as a 2 pin output with the labels "F" and "N". Included pictures of alternator as well as voltage regulator and the wire colors. Any help would be appreciated. The car is stripped to barebone so I don't need the warning light and what not... Basically just need to know which wires go where!! Thank you for your time! Pics: Quote Link to comment Share on other sites More sharing options...
Project1 Posted March 24, 2015 Share Posted March 24, 2015 (edited) When your alt is mounted in position, the post closest to the motor on the inside is the positive. The post on the outside closest to your fender is the negative. The harness clip is for the voltage regulator. I'm not sure about that because mine has an internal regulator/140 amp. I just did one Google search. The very first thing I clicked on told me the answer to all your questions and had pictures. There was a yellow wire and a black wire and it told how too hook up the FN. I just forgot already....wait ...where am I? Edited March 24, 2015 by Project1 Quote Link to comment Share on other sites More sharing options...
NewZed Posted March 24, 2015 Share Posted March 24, 2015 Probably here somewhere. I'd try a file with the word Electrical in the name. http://www.nicoclub.com/datsun-service-manuals Quote Link to comment Share on other sites More sharing options...
Project1 Posted March 24, 2015 Share Posted March 24, 2015 I attached the diagram. If you search for two seconds you find 25 diagrams all saying the same thing. I even found a coloring book one . Well here is the diagram. When you do your tons of research try google, there's a lot to be found there. Quote Link to comment Share on other sites More sharing options...
Scapy Posted March 25, 2015 Author Share Posted March 25, 2015 Project1, Your info is great, but I only have one side of the connector (the Regulator side) so I have no idea which wires form the voltage regulator go where, trust me I've already been through the pictures you've sent me. NewZed I checked up the electrical wiring diagram and found this: The problem I see with this though is the voltage regulator in this diagram has a green/red and a green output. I dont have those. But it seems that those two go to pointless things in my case (stripped car), the yellow, black, and white/black and white though are important and my voltage regulator has those wire colors. Would it be safe to hook up those 4 connections and just run those. Seems like those are the only important ones. The other ones (from my research) are: green/red ignition interlock system (which might or might not need a signal from batt or a switch or something since its a safety standard), and then green which goes to floor temp sensor (for California only??) Quote Link to comment Share on other sites More sharing options...
NewZed Posted March 25, 2015 Share Posted March 25, 2015 You have an interesting problem, from a couple of views. One is that the regulator is not Nissan, therefore wire colors are probably irrelevant. I would use wire position in the plug. Another is that the form of the regulator indicates that it's probably one of the solid sate, or electronic, replacement parts. From what I've read, they're fragile and fail often. If i was looking at those parts, trying to decide if I should put the time in to making them work, I'd probably decide to just wire up an internally regulated alternator. You said it's bare-bones, so all you need is S, L, charge, and ground for an internal alternator. Or I'd figure out how to make the parts work, but not put the time in to actually doing it. But if you do decide to hook it up, and it's the right replacement part for your year and model of car (Google the number), wire position in the plug is the way to go. Quote Link to comment Share on other sites More sharing options...
beermanpete Posted March 25, 2015 Share Posted March 25, 2015 The factory service manual has the pin out for the regulator connector. It is in the engine electrical section. You can get the manual here: http://www.xenons30.com/reference.html If you are going to use the external regulator you will need to use all the pins on the alternator. Quote Link to comment Share on other sites More sharing options...
Scapy Posted March 25, 2015 Author Share Posted March 25, 2015 Thank you berrmanpete! liked you for that. I was able to find the following two pictures plus some tests in between to make sure my regulator is the same setup (it looks a lot different then the one in the manual but the wires lined up... except for pin 2 which is a black wire with white stripe but the manual says W/L) Thanks again!! -Scapy (p.s. I'll post here once the car is up and running and let you know how it all turns out) Quote Link to comment Share on other sites More sharing options...
NewZed Posted March 25, 2015 Share Posted March 25, 2015 Weird. I said the same thing, with an easier path to the information. Too many words in my posts, I guess. We're both repeating things that have been said 100's of time though. The internet's a strange pace. Quote Link to comment Share on other sites More sharing options...
Scapy Posted March 25, 2015 Author Share Posted March 25, 2015 NewZed I didnt even see your post... It was like 1am. My bad. Yeah I'm eventually going to get an internally regulated alternator and wire that up but for now I'm just going to use stock with external until something goes bad. And yeah I didn't even notice but you are right. All of the wires line up on the connector though and are the same color (except for that one I mentioned in my previous post) so this must be some sort of aftermarket upgrade?? Maybe that makes it more reliable than the stock ones that often fail?!?! Update: Just looked up the model number of the regulator and it says that its from a Datsun 620 pickup. Quote Link to comment Share on other sites More sharing options...
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