Alternator Wiring BAH!!! Help
Thread Starter
Burning Brakes
Joined: Aug 2001
Posts: 1,244
Likes: 24
From: Austin TX
Alternator Wiring BAH!!! Help
How exactly do the wires hook up again? I have 4 total connectors, with a pair of 2 and then 2 singles. Let me go get a picture.
Theres the small connector and the other single connector, the dual is curved and you can't see it.
Theres the large single (left) and the dual connector (right) The small single is on the main red connector.
[Modified by mrbeaubo, 8:35 PM 1/13/2002]
Theres the small connector and the other single connector, the dual is curved and you can't see it.
Theres the large single (left) and the dual connector (right) The small single is on the main red connector.
[Modified by mrbeaubo, 8:35 PM 1/13/2002]
Le Mans Master
Joined: Aug 2000
Posts: 9,662
Likes: 7
From: Semper ubi, sub ubi
Cruise-In VI Veteran
Cruise-In VII Veteran
Re: Alternator Wiring BAH!!! Help (mrbeaubo)
Largest red wire goes to BAT terminal on the back of the alternator (the one with the nut.) Black ground goes to ground (any bolt you can reach.)
The other two wires should be in a keyed connector that only fits one way. The white one is connected to the terminal on the driver's side (left) of the connector, the dark blue one goes to the passenger side (right) with the alternator facing forward.
These colors and layout are what I found on my 69.
The other two wires should be in a keyed connector that only fits one way. The white one is connected to the terminal on the driver's side (left) of the connector, the dark blue one goes to the passenger side (right) with the alternator facing forward.
These colors and layout are what I found on my 69.
Le Mans Master
Joined: Aug 2000
Posts: 9,662
Likes: 7
From: Semper ubi, sub ubi
Cruise-In VI Veteran
Cruise-In VII Veteran
Re: Alternator Wiring BAH!!! Help (mrbeaubo)
Looking at your pictures and I was mistaken when I gave you the wiring colors on my setup (I was looking at the Camaro schematic)
The 10 gauge red goes to the bat terminal, 12 gauge black goes to ground, 20 gauge brown goes to terminal 1 (left) 10 gauge red goes from terminal 2 (right) back to the bat terminal and then to the center terminal of the horn relay.
The 10 gauge red goes to the bat terminal, 12 gauge black goes to ground, 20 gauge brown goes to terminal 1 (left) 10 gauge red goes from terminal 2 (right) back to the bat terminal and then to the center terminal of the horn relay.
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Re: Alternator Wiring BAH!!! Help (mrbeaubo)
Well I can't see your problem clearly due to the spiral wrap over the car wire....but as a 'one wire' alternator, that thick red/orangy looking wire from your 2 prong connector to the alt output is fine....then the other spiral wrap wire looks like I see red underneath....so it also goes to the alt output stud, into the wiring harness and to the 'horn relay' which is also a distribution block on the driver's inner fender.....now somwtimes there is a black wire that also goes to the alt frame, and is a ground....
GENE
GENE
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Re: Alternator Wiring BAH!!! Help (mrbeaubo)
Yes, that looks ok, worst case is that something won't work as that wire you have grounded to alt frame is maybe red inside the spiral wrap and should go to output stud as other red wires......
but as it appears, it's fine.....
GENE
but as it appears, it's fine.....
GENE
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Melting Slicks
Joined: Dec 2000
Posts: 3,407
Likes: 2
From: Carmichael CA
Re: Alternator Wiring BAH!!! Help (mrbeaubo)
OK, from the picture I can see that Bubba has been doing some rewiring. The thick red wire does go to the BAT alternator output as you have shown. And, the brown wire looks like it does go to the stator terminal as you have it there. However, the thick orange wire does NOT go to the alternator output. That wire needs to go to a switched power terminal so that it's only connected to power when the ignition switch is in the RUN position.
The Haynes repair manual has excellent wiring diagrams for all years. I suggest spending the $25 or so and get it, then trace the wires to make sure they are all going to the right places.
The Haynes repair manual has excellent wiring diagrams for all years. I suggest spending the $25 or so and get it, then trace the wires to make sure they are all going to the right places.
