3400 alternator conversion

I know this has been beat to death so many times. Put a 10si alternator in, did a bunch of other maintenance stuff and the tractor runs pretty damn good now on a full battery. I need to wire this suckered in now though. So what I'm gathering is this

Pos battery post on alt goes to battery or starter?

#2 terminal to pos post on alt.

#1 to light on dash.

What changes to the regulator?
 
I thought I read about wiring through the key so it doesn't drain the battery. Looking at a schematic it looks like the genny went to terminals F and D, those wires are obsolete now right? Already a 12 ground so no special wiring needed there.

I also though I read about wiring through the voltage stabilizer in the dash cluster, make sense? Hoping to get it done before the next big snow so I can run this older gas out and put in ethanol free stuff
 
I have no experience with that model, but,If your using a 10SI Delco alternator and you wire the factory gen light to the Alternators #1 terminal, then it is already wired through the key and no other changes should be needed. Unless something else is powered from the generator regulator terminals, you should be able to just tape them up as not needed.
 
Remove the regulator. Bridge the WL and F wires together. Bridge the B and G wires together.
 

Do you mean D and B or G meaning ground?

I have

E-ground
D-GENNY
F- OIL PRESSURE SWITCH
WL- WARNING light
B- Battery +

So
D to WL to take care of the idiot light circuit

B to f to handle the oil pressure switch circuit
 
B & G are bridged.
WL and F are bridged.

G should be connected to the alternator B post, used to be connected to the larger post on the generator. If it isn't connected to your alternator, don't connect it to B. If there are two B connections, bridge them together.
WL and F are bridged if you are using the F wire to connect to the #1 post on your alternator. It used to go to the smaller post on the generator.

F has nothing to do with the oil pressure switch.
E served to ground the voltage regulator, don't connect it to anything.
 
Got em mixed up haha.

Had to break out my manual since the pine ones were blurry. F does indeed go to the generator, looks like coil side and D looks like the field side

B and D
WL and F

Looking at the schematic (prefix c tractor), j have 2 B wires. One goes to the plus side on the starter and other goes to starter switch terminal 1.

So, drop the D wire and tie the 2 Bs together.
 
The two B wires and the D all tied together. Then tie F to WL. D will connect to 10SI output & F will connect to 10SI spade #1. No G that I see.
 

I've wired up Delco's on three of my -000 series, don't have my shop manual here with me but, there's six wires that connect to the regulator
Three are larger wires, one comes from the battery, one goes to the key switch, one went to the large blade connector on the gen and now goes to the alt hot stud.
These all need to be tied together
One small wire is the ground and is no longer used.
The other two small wires tie together and completes the circuit from the dash light to the #1 post on the Delco, #2 post on the Delco is jumped to the hot stud.

B= two wires, one from bat, one to key switch
D= hot wire to gen, goes the alt hot stud
Tie these three wires together.
WL= goes to warning light
F = went to get field post, now to #1 alt post
Tie these two together
E= ground, no used with alt conversion.

Hope this helps.

John
 

Are you guys using the factory wires? I'm not sure what the total output of the alternator will be, it's a 63 amp alternator but I don't know what rpms I'll be spinning it at. I've got a spool of 12 awg I was going to use for everthing as I'm not sure if the stock wires are very goog. Up by the regulator there is some corrosion.
 

Used the factory wire. Fired it up and the light went off. No lights on the tractor but it 14.x volts for a while at just above idle
 

I converted my 4000 to a Delco alternator 16 years ago using the factory wiring harness, I had the Lucas generator pulley drilled to fit the Delco for correct belt with and it's larger dia runs the alt slower, probably isn't putting out more than 35-40 amps if that much but it's enough to power four halogen lights for night field work.
I believe the main wires in the tractors harness are 12 gauge, no sure about some of the new harnesses made today.
Still running that same alternator.
 

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