67 ford 3000 alternator

[brownell3387]

hey guys have a 1967 ford 3000 gas 3 cylinder engine has a 12v conversion on it but someone destroyed the wiring harness no wires were going to the alternator and all sorts of wires were cut on the harness so I got an original harness off of a parts tractor and am looking for some info on how to hook up the alternator as to what wire goes where here is a picture of the new harness I am installing now the picture is of the harness still on the parts tractor witch is still 6v and my tractor is 12v so has different connections in it any help would be appreciated

 

[Sean in PA]

I doubt the parts tractor is "still 6 volts". The 3000 was 12 volts from the factory, but it used a 12 volt generator and external voltage regulator. It makes a difference on how you need to wire it for a 12 volt alternator depending on if it is a 1 wire or 3 wire alternator.

Also, your picture didn't come through.

 

[brownell3387]

(quoted from post at 23:46:55 07/21/22) I doubt the parts tractor is "still 6 volts". The 3000 was 12 volts from the factory, but it used a 12 volt generator and external voltage regulator. It makes a difference on how you need to wire it for a 12 volt alternator depending on if it is a 1 wire or 3 wire alternator.

Also, your picture didn't come through.

 

[JMOR]

DC generator, not alternator.

 

[Tim PloughNman Daley]

HiYa Sean-
Yes, I was thinking about this when I read it this morning. Then I remembered that John Smith posted the Thousand Series info info on his web site before he stepped
down. The Ford/Fordson Collectors Association has his Tractor ID & History forum info now so scrolled thru it. I thought the Thousands all had 12V systems and used a
GEN and a VR. I assume they were NEG GRN although they could operate on POS GRN as well. If the first Thousands were the Red and Buff Industrials which were
essentially the earlier 601/801's with new nose cones. SO, can I assume those were 6V/POS GRN??? Also, were the first '62 2000 and 3000 4 cylinder or 3 cylinder OHV?
I did know that the '62 6000 was painted red and medium grey, not blue and off white. My Leffingwell and Pripps books are still in boxes from the move.

Tim Daley(MI)

 

[Sean in PA]

(quoted from post at 15:00:35 07/22/22) HiYa Sean-
Yes, I was thinking about this when I read it this morning. Then I remembered that John Smith posted the Thousand Series info info on his web site before he stepped
down. The Ford/Fordson Collectors Association has his Tractor ID & History forum info now so scrolled thru it. I thought the Thousands all had 12V systems and used a
GEN and a VR. I assume they were NEG GRN although they could operate on POS GRN as well. If the first Thousands were the Red and Buff Industrials which were
essentially the earlier 601/801's with new nose cones. SO, can I assume those were 6V/POS GRN??? Also, were the first '62 2000 and 3000 4 cylinder or 3 cylinder OHV?
I did know that the '62 6000 was painted red and medium grey, not blue and off white. My Leffingwell and Pripps books are still in boxes from the move.

<center><img src=https://fordtractorcollectors.com/wp-content/uploads/2018/06/626000.jpg></center>


Tim Daley(MI)

Tim, no, the first 12 volt tractors were the '01 series diesels. All gas engine Ford tractors prior to 1965 were 6 volt and all diesels were 12 volt. Starting with the 1965 year models, all Ford tractors, gas and diesel were 12 volts. The OP's question was about a 3000, which is 3 cylinder 1965+ model and so it is 12 volt.

 

[Tim PloughNman Daley]

HiYa JMOR-
Is this from the I&T FO-22 Manual? I like to keep the documents straight and I don't have that one yet. More questions: By the diagram, the system can be either POS GRN or NEG GRN, am I correct? On the GEN, what does the D stand for? I see no ARM connection, only F and a ground. All FORD Generators were the A circuit type after the 8N, correct? Polarizing would be the same then? On the VR, does the E designate EARTH or GROUND? The WL designates WARNING LIGHT, so is this just an idiot light to indicate when unit is not charging? Finally, is the VOLTAGE STABILIZER a VOLTMETER in the circuit? Thanks in advance...

TPD

 

[Tim PloughNman Daley]

CORRECTION! I was in error. ALL FORD 8N's used the A Circuit Designed GENS. NAA and after all used the B Circuit Design. Was the VR, p/n FAG-10505 the same too?

FORD ELECRICAL A & B CIRCUIT DESIGN - POLARIZING GENERATOR:

Tim Daley(MI)

 

[Sean in PA]

HiYa JMOR-
Is this from the I&T FO-22 Manual?

The schematic that JMOR posted is from the I&T FO-31 manual, which is for the 1965-1975 3 cylinder 2000/3000/4000 series.

 

[JMOR]

Tim, this thousand series generator is Lucas with the Lucas RB340 VR, 12v, neg ground gen/VR. Earth=Ground. WL, standard warning (idiot) light. D=Dynamo=Armature. "B" circuit. As with most generators, one could polarize to produce either pos or neg output. Not all VRs will work either pos or neg. Voltage stabilizer is a simple regulator to provide a reduced stable voltage for the temp & fuel gauges. Sean covered the source of the wiring diagram for you.

 

[Tim PloughNman Daley]

DYNAMO! I should have deduced that. Wasn't LUCAS made in the UK?

TPD

 

[Tim PloughNman Daley]

OK - Thanks, Sean. Added that to my list now...I'm looking at the Clymer site later...prices really can vary. Looked at fleabay and the range runs to over $60 for an I&T manual now...

TPD