3G and 6G (scroll to bottom) alternator on an 86 SVO
NOTE: I am not responsible for any damage you might cause from this wiring guide. This is only an example of what I did on my 86 SVO. If you have questions, please e-mail me and I will try to help. Some of the wires on your car might not be the same color.
|First lets understand the system and
So what we are really doing here is installing a bigger alternator with an internal regulator. So we need to remove the existing external regulator which is mounted under the coil.
|Here is the external regulator plug
attached to the regulator:
Notice that two of the wires go to the alternator (F and S). The other two go to the instrument cluster (I) and to the starter solenoid post (A). This makes it very easy to rewire the current charging system.
|Remove the external regulator and set it
aside with your old alternator. Make a couple of jumper wires with
male terminals to rewire the external regulator plug:
At the alternator harness you should have three wires, a big fat one for the high amperage wire (which you should NOT reuse), an orange with light blue wire (O/LB, old field), and a white with black stripe wire (W/BK, old Stator). Cut the ends off of all three wires and cover and seal (terminate) the big wire, you will not reuse it. Strip the O/LB and W/BK wires.
|Now you can attach the new 3G harness
wires to the existing alternator harness:
The old field wire (O/LB) coming out of the alternator harness (the one you just striped in the previous step) should be connected to the "I" wire (G/R) on the 3G harness.
The old stator wire (W/BK) coming out of the alternator harness (the one you just striped in the previous step) should be connected to the "A" wire (Y/W) on the 3G harness.
In addition, run a NEW 8 gauge (8ga) wire from the 3G alternator to the hot side of the starter solenoid. DO NOT reuse the existing wire in the alternator harness.
Install pictures of the 6G alternator on my SVO. Alternator is from 2001 V6 Mustang. I am running an under drive pulley and have a custom tensioning system.