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  1. DigDirt

    FMTV - 24/12 Converter instead of the Niehoff dual-voltage alternator?

    I'm also in the same boat with the N1506-1 going out and wanting to go 24v only. But I'm having trouble finding a civvie alt that will fit the existing bracket. SausageGuy, where did you find yours and what make and model was it?
  2. DigDirt

    Alternator Charging issue

    Update: changed out the alternator and voltage regulator and batteries are charging properly again. Gotta say the voltage regulator going out right after I changed the location of the reverse polarity box, is a conundrum... coincidence or cause?? Even though the troubleshooting was a PITA, it...
  3. DigDirt

    Alternator Charging issue

    You make a great point! The alternator cables to the reverse polarity box are the only ones that I haven't changed out yet and I did reroute them when I changed the location of the reverse polarity box. I'll give that a whirl tomorrow. All that said, the regulator still comes up bad during...
  4. DigDirt

    Alternator Charging issue

    Good point. Got a 200 amp off eBay.
  5. DigDirt

    Survey...... "oil line of death 3116" (governor oil feed line)

    I have an account with them and it would seem that the price has increased..
  6. DigDirt

    Alternator Charging issue

    Well I repeated all the troubleshooting gymnastics and again came to the conclusion the voltage regulator is bad. Does anyone have or know where I can get one of these? Niehoff dual voltage regulator 76761-n3030
  7. DigDirt

    niehoff dual voltage regulator 76761-n3030

    I am looking for a niehoff dual voltage regulator 76761-n3030. Please let me know if anyone out there has one
  8. DigDirt

    Alternator Charging issue

    fair enough. Certainly sage advice Ronmar, however, I first need to be sure that the regulator isn't bad (which is the conclusion according to the flow charts after my extensive troubleshooting). Once I know that the regulator is OK, then I plan to jump K11 30 to 87A until I figure out where the...
  9. DigDirt

    Alternator Charging issue

    the Niehoff Regulator is actually a little smarter in that when it get Power from its harness and IGN signal from the red terminal it waits till it sees an certain RPM from the alternator phase signal before it powers up the field coil. its call a soft start on some Niehoff units it also ramps...
  10. DigDirt

    Alternator Charging issue

    I don't think mine is that smart....rofl
  11. DigDirt

    Alternator Charging issue

    I am pretty sure that it is wired correctly in that I labelled the wires before I relocated the box. That said, I have wired it opposite to what it is now to ensure completeness and the engine wouldn't start.., I will make a temp jumper from the 24v on the polarity box to the ENG terminal this...
  12. DigDirt

    Alternator Charging issue

    There are no LEDs and I think I have the N1506. At least that is what I've been using to troubleshoot; that and the TMs
  13. DigDirt

    Alternator Charging issue

    I will rerouter excitation wire from fuel solenoid as per Supraman's suggestion. What gauge wire is recommended? Also, because all this started after I messed with the reverse polarity box, could that be bad? How do I test it and is it even necessary to have or can it be done away with? Thanks...
  14. DigDirt

    Just bought a 1998 lmtv

    What gauge wire do you recommend when rerouting excitation wire from fuel solenoid to regulator?
  15. DigDirt

    Alternator Charging issue

    I have an alternator charging conundrum on a 1996 M1078 ever since I removed my spare wheel and "cleaned"up behind the cab, the batteries are not charging via the alternator. All I did was relocate the reverse polarity box and remove the ether canister and cut that wire. I've troubleshot the...
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