sprice
Active Member
I am upgrading my wiring n 68' 300. Ron Francis advises not to use Fusible Links. I am reading the wiring diagrams from the service manual and am trying to understand electric flow. What I have realized, if correct, is that electricity does not necessarily have a flow pattern. Its more of being present and will flow depending on draw. What I am trying to understand is what the purpose of the fusible link from the bulkhead is supposed to do. 12ga black from alternator to "P" in connector, to ammeters right terminal (from back), then 12ga red exits on left side to bulkhead "J", into fusible link 16ga, then to 10ga to starter relay. If its not a flow thing, what is the 16ga fusible link protecting? My understanding is that 16ga is good for 20 amps. It seems to me you have full amps from the alternator (50 or 65 amp) flowing to the ammeter gauge while being split to ignition switch and fuse block before entering the ammeter. Then what happens to the 30-50 amp charge from the alternator if there is a 20 amp fusible link coming from the alternator through "J" terminal to solenoid and battery? I think where I'm getting lost is applying fluid flow patterns.