It may seem difficult because external voltage regulator alternators are a mess to wire but it's super easy to go to an internally regulated one once you remove the unneeded old alternator and voltage regulator wires.
To cut out the old alt and regulator you have to rewire the oil light and the alt light, if you want everything to work.
To start you cut out all the old 6 wire voltage regulator junk.
You do need to reuse and reconnect a few wires.
The alt and reg get their power from a small black wire with thin white stripe coming off a fuse, just pull this wire off the fuse terminal, you don't need it, the other end goes to the 6 plug.
There's a red wire coming off the 6 plug that splits and goes to the alt and oil lights, cut that red wire with a few inches to work with.
Take the red wire that you just cut, put a female spade connector on it and plug it into the now empty alternator fuse terminal, previously occupied by that black wire with white stripe.
The oil light is wired ready to go now and the alt light is half wired in.
The alternator light still has a thin white wire with thin red stripe that goes to the 6 plug. Cut this wire and extend it to the number 1 terminal on the alternator. If you buy a GM alternator plug it will be the white wire. Or if you are cheap and stick a spade connector on there it's the left terminal looking at the alternator from behind.
Take the alternator number 2 or right wire which should be red and connect it to the battery, this is your voltage sense wire. The dumb lazy red neck way to do this is to connect the voltage sense wire to the battery output terminal, I am guilty if this, did it many times when I was younger, running it to the battery is far superior to running it to the alt terminal.
Then take the alt output terminals or battery charge wire and hook it to the battery with at least a 10 gauge wire for a 10si and at least 8 gauge for a 12si.
If you do run the voltage sense wire to to alt battery terminal use a 6 gauge wire.
I'm doing it on mine right now, I will update in a few days if there is a problem like slowly draining the battery while off.
Hereis the original charge circuit before I ax murdered it.
Link from Russell king.
https://www.orangetractortalks.com/forums/attachment.php?attachmentid=48638&d=1587438463
To cut out the old alt and regulator you have to rewire the oil light and the alt light, if you want everything to work.
To start you cut out all the old 6 wire voltage regulator junk.
You do need to reuse and reconnect a few wires.
The alt and reg get their power from a small black wire with thin white stripe coming off a fuse, just pull this wire off the fuse terminal, you don't need it, the other end goes to the 6 plug.
There's a red wire coming off the 6 plug that splits and goes to the alt and oil lights, cut that red wire with a few inches to work with.
Take the red wire that you just cut, put a female spade connector on it and plug it into the now empty alternator fuse terminal, previously occupied by that black wire with white stripe.
The oil light is wired ready to go now and the alt light is half wired in.
The alternator light still has a thin white wire with thin red stripe that goes to the 6 plug. Cut this wire and extend it to the number 1 terminal on the alternator. If you buy a GM alternator plug it will be the white wire. Or if you are cheap and stick a spade connector on there it's the left terminal looking at the alternator from behind.
Take the alternator number 2 or right wire which should be red and connect it to the battery, this is your voltage sense wire. The dumb lazy red neck way to do this is to connect the voltage sense wire to the battery output terminal, I am guilty if this, did it many times when I was younger, running it to the battery is far superior to running it to the alt terminal.
Then take the alt output terminals or battery charge wire and hook it to the battery with at least a 10 gauge wire for a 10si and at least 8 gauge for a 12si.
If you do run the voltage sense wire to to alt battery terminal use a 6 gauge wire.
I'm doing it on mine right now, I will update in a few days if there is a problem like slowly draining the battery while off.
Hereis the original charge circuit before I ax murdered it.
Link from Russell king.
https://www.orangetractortalks.com/forums/attachment.php?attachmentid=48638&d=1587438463
Last edited: