Alternator Conversion - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Deryl · 11-02-2003, 10:39 PM

Hi guys! I'm new to this awsome board and this is my first post. I'm converting my 71 C10 to an internally regulated alternator. I've done a search, but I'm still not clear about a couple of things. There is a blue wire and a white wire going to the plug on the old alternator. Can I simply splice the new plug to these two wires after jumping the voltage regulator plug? If so which wire goes to terminal #1 and which goes to #2? Also, there was a ground on my old alternator. Do I leave that off?

BLACK AND BLUE 67-72 · 11-02-2003, 11:25 PM

Dark Blue #1 And White #2 #1 is toward drivers side and #2 is the passengers side of the alternator, they should be marked on the back of it. I just left the black wire hooked up on mine (Can never have too many grounds) And then just jump the regulator plugs and it should be good to go. Also somewhere on here I saw a factory looking style plug to jump the regulator but I know it is aftermarket. But it looks better than the two wires for jumpers. I wish I could remember who had them.

miket · 11-02-2003, 11:35 PM

Deryl,

Welcome from Seattle. I converted my externally reg alt to an internally reg unit a while back. I did not go to a 1 wire hook up....however I boght a nice plug that bypassed the external regualtor...as wellI rebuilt my own alternator at the same time.....the links for the vendors where I bought my parts are on my website
and you can chek it out and see if that helps. It took no time at all to do this.

REPO1 · 11-02-2003, 11:46 PM

Here is a good article on the subject. It is being done on a Chevelle, but the wiring should be pretty much exactly the same.

Have a look.

http://www.chevelles.com/techref/ftecref14.html

junkyardjohn · 11-03-2003, 10:58 AM

MY BUDDY FROST89434 (JIM) DID MINE WHILE WE WERE SWAPPING MOTORS IN MY TOWTRUCK, & INSTEAD OF JUST JUMPING THE WIRES, HE CUT OUT THE VOLT. REG. PLUG ALLTOGETHER & HOOKED THE WIRES TOGETHER WITH BUTT CONECTORS. IT LOOKS MUCH CLEANER & MORE PERMANENT. JOHN

69sixpackbee · 11-03-2003, 12:25 PM

e-mail me and I have a very clear and concise instruction sheet I can send you.

barn9 · 11-03-2003, 12:30 PM

I have the plugs for this conversion, and they have the resistence diodes built into them. Makes the change over very clean and simple. PM me if interested.

Deryl · 11-04-2003, 01:39 PM

Damn this board moves fast. Thanks for the help. The Big Orange is up and running with brighter lights and faster blinkers.

11-02-2003, 11:35 PM	#3
miket Registered User Join Date: Jan 2003 Location: Seattle WA Posts: 1,466	Deryl, Welcome from Seattle. I converted my externally reg alt to an internally reg unit a while back. I did not go to a 1 wire hook up....however I boght a nice plug that bypassed the external regualtor...as wellI rebuilt my own alternator at the same time.....the links for the vendors where I bought my parts are on my website and you can chek it out and see if that helps. It took no time at all to do this. __________________ FocuzTech Performance Evergreen Protective Coatings Gatorhyde...the best kept secret in spray in bed lining & protection

11-02-2003, 11:46 PM	#4
REPO1 Shortbox wanna-be. Join Date: Mar 2002 Location: Fort St.John, British Columbia, Canada Posts: 773	Here is a good article on the subject. It is being done on a Chevelle, but the wiring should be pretty much exactly the same. Have a look. http://www.chevelles.com/techref/ftecref14.html __________________ 1970 Chevy C20 Custom Camper 402BB Turbo 400 trans. (Slowly becoming a '70 shortbox 1/2 ton) '71 Camaro SS 402/T400 resto '97 Z28 (11.41@127MPH)

11-03-2003, 10:58 AM	#5
junkyardjohn Registered User Join Date: Aug 2001 Location: SOMERSET KY. Posts: 6,427	MY BUDDY FROST89434 (JIM) DID MINE WHILE WE WERE SWAPPING MOTORS IN MY TOWTRUCK, & INSTEAD OF JUST JUMPING THE WIRES, HE CUT OUT THE VOLT. REG. PLUG ALLTOGETHER & HOOKED THE WIRES TOGETHER WITH BUTT CONECTORS. IT LOOKS MUCH CLEANER & MORE PERMANENT. JOHN __________________ junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE. THERES ROOM FOR ALL OF GODS CREATURES RIGHT NEXT TO MY MASHED POTATOES// LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST

11-03-2003, 12:30 PM	#7
barn9 Half a bubble off! Join Date: Jun 2000 Location: Winfield, Ks, USA Posts: 5,588	I have the plugs for this conversion, and they have the resistence diodes built into them. Makes the change over very clean and simple. PM me if interested. __________________ Just call me LB. '71 Cheyenne, 402BB, hauls blondes, brunettes, or redheads.

11-04-2003, 01:39 PM	#8
Deryl Registered User Join Date: Oct 2003 Location: Douglasville, Ga. Posts: 125	Damn this board moves fast. Thanks for the help. The Big Orange is up and running with brighter lights and faster blinkers. __________________ D's 63

11-02-2003, 10:39 PM	#1
Deryl Registered User Join Date: Oct 2003 Location: Douglasville, Ga. Posts: 125	Alternator Conversion Hi guys! I'm new to this awsome board and this is my first post. I'm converting my 71 C10 to an internally regulated alternator. I've done a search, but I'm still not clear about a couple of things. There is a blue wire and a white wire going to the plug on the old alternator. Can I simply splice the new plug to these two wires after jumping the voltage regulator plug? If so which wire goes to terminal #1 and which goes to #2? Also, there was a ground on my old alternator. Do I leave that off?

11-02-2003, 11:25 PM	#2
BLACK AND BLUE 67-72 Firefighter Join Date: Feb 2001 Location: Yellville, Ar, USA Posts: 1,943	Dark Blue #1 And White #2 #1 is toward drivers side and #2 is the passengers side of the alternator, they should be marked on the back of it. I just left the black wire hooked up on mine (Can never have too many grounds) And then just jump the regulator plugs and it should be good to go. Also somewhere on here I saw a factory looking style plug to jump the regulator but I know it is aftermarket. But it looks better than the two wires for jumpers. I wish I could remember who had them. __________________ '72 Chevy SWB 350 Auto '67 GMC LWB 350 4 speed '70 Chevy 4x4 Stepside 350 Auto Yellville, Ar. USA

11-03-2003, 12:25 PM	#6
69sixpackbee Registered User Join Date: Jan 2001 Location: Sabinal, Texas Posts: 1,706	e-mail me and I have a very clear and concise instruction sheet I can send you.

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