My 130a 3g is in and working on my '86 F-350. 14.7 at first startup then settled down to 14.6x. High beams, fan on high, radio on... I guess that's all I got, but it stayed at 14.6x. No drop, no cycling up/down, just works. Very happy so far. $95 for alternator and plug/harness. Cheaper than $142 for the drop in 70 amp replacement (sans regulator) and better than a $40 (absurd, they used to be $15-$20) 65a 1g which would require similar work changing wiring.
Messed with some wiring and hooked the old alternator wire to the battery and plugs worked fine and fired right up. Peeling back the harness it looks like 2 large gauge wires and one small soldered together into the one to the charge post and various other hacks in there. I removed some or the regulator wiring for now. What are you guys doing with the old rats nest? What is required for power into the cab and everything to work? There is a 2 wire plug on pass inner fender one of which was green/red to voltage regulator to turn alternator on. I snipped that off the old voltage regulator then crimped and heat shrinked that to the 3g harness. The other is larger and goes to the old alternator charge post. It's dark so I'm content for tonight that it works.
Also I'm out of thread on the stud on my passenger side group 31. Nut has maybe half the threads on so I gotta do some sort of distribution block or eliminate wires. I have driver side battery, starter, alternator charge, alternator sense and mystery wire. Old alternator charge terminal is tapped off the two bolt clamp terminal to the starter. Getting way too busy at that terminal! I'd like to figure out what the mystery wire goes to and eliminate that or tie it in more cleanly if required. The rest can't really go anywhere so what do I do? I could come off the battery to a longer isolated stud on the fender or rad support with 2/0 and use that for others taps? Use one of the solenoids on inner fender? Run 4g or 2g into cab and put a block or stud in there for accessories? I'd like to keep things as simple and reliable and possible so anything I can eliminate or simplify is great.
Messed with some wiring and hooked the old alternator wire to the battery and plugs worked fine and fired right up. Peeling back the harness it looks like 2 large gauge wires and one small soldered together into the one to the charge post and various other hacks in there. I removed some or the regulator wiring for now. What are you guys doing with the old rats nest? What is required for power into the cab and everything to work? There is a 2 wire plug on pass inner fender one of which was green/red to voltage regulator to turn alternator on. I snipped that off the old voltage regulator then crimped and heat shrinked that to the 3g harness. The other is larger and goes to the old alternator charge post. It's dark so I'm content for tonight that it works.
Also I'm out of thread on the stud on my passenger side group 31. Nut has maybe half the threads on so I gotta do some sort of distribution block or eliminate wires. I have driver side battery, starter, alternator charge, alternator sense and mystery wire. Old alternator charge terminal is tapped off the two bolt clamp terminal to the starter. Getting way too busy at that terminal! I'd like to figure out what the mystery wire goes to and eliminate that or tie it in more cleanly if required. The rest can't really go anywhere so what do I do? I could come off the battery to a longer isolated stud on the fender or rad support with 2/0 and use that for others taps? Use one of the solenoids on inner fender? Run 4g or 2g into cab and put a block or stud in there for accessories? I'd like to keep things as simple and reliable and possible so anything I can eliminate or simplify is great.
