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  1. T

    M939 ABS ECU failure point

    Thanks, I don't think I would have ever found it. I was going crazy trying to find it in that mess under the dash with flashlight. Off to go look again...
  2. T

    M939 ABS ECU failure point

    Where is the ABS ECU located? I can't find it anywhere in the 4 volume TM pdf. It's not the same thing as the Protective control box (PCB) is it? I'm having the same symptom. 15A fuse under dash blowing as soon as I turn the switch, ABS light constant on. eta: Well, they're definitely not...
  3. T

    939A2 keeps losing prime, no leaks evident

    How did you pressurize your fuel tank?
  4. T

    939A2 keeps losing prime, no leaks evident

    My 923A2 keeps losing prime to the injection pump over the course of about a day. Injectors appear to remain primed or mostly so. It seems to be prime up to the IP that is being lost. So I replaced the spin on fuel filter the other day, hoping that would fix the problem. It didn't. This...
  5. T

    The things I learned while rebuilding my CTIS

    I think it's an inflate trend problem. When I press the HWY button (5 lights are already flashing), it will wait 5 seconds then try it's test inflate. It's just enough time for me to jump down to the ground and run to the middle axle where it sounds like something happens. I think there's a...
  6. T

    The things I learned while rebuilding my CTIS

    It's kind of weird. Before I put the new o-ring on the manifold in question, I was getting a constant HWY light flash and it would do the pair of test puffs every 5 seconds for a few minutes. And if I stood by that manifold and put my finger next to it, I could hear the puffs happen and feel...
  7. T

    The things I learned while rebuilding my CTIS

    Thanks for the writeup. On your third pic, there's supposed to be a small o-ring that fits inside the manifold portion of that line (the part with the two bolt holes). I had one leaking from there. When I took the manifold off just a minute ago to diagnose the problem, there was no o-ring...
  8. T

    Batteries charge unevenly 939a2

    So I got my system charging, finally! Had to redneck engineer a Monster Mash Alternator with a (slightly modified to fit) Prestolite voltage regulator on a Sielman (Greece) alternator. Seems like the front battery in each series charges at a lower voltage than the rear, tho. And I've...
  9. T

    Alternator, voltage regulator question

    Well it appears to be charging. Just in case anyone was wondering, it appears that a spade type prestolite voltage regulator will work on a Hellas alternator. You just have to get someone with a lathe and an 8" chuck to machine down about .015" radius (.030 diameter) off the tongue of the...
  10. T

    Sabatoge or Stupidity

    This. But yeah, if it doesn't work and you do wind up needing a replacement, send me an PM. I'm about 3 hours from utopia.
  11. T

    Will a humvee transmission swap into a CUCV?

    There is a cucv I am looking at that has it's original transmission in the bed already... It is sounding like I could probably pull the necessary parts from it (if they're serviceable) and modify one of these humvee transmissions to serve as a replacement.
  12. T

    Alternator, voltage regulator question

    Closest info I can find in any manual is from this TM 9-2920-225-34 On the PRESTOLITE MODEL AMA-5102UT, even those it's the round pin version, and not Greek manufacture. It says the value should be between 8.8 and 10.2 ohms between the two sliprings. None of the other alternators described...
  13. T

    Alternator, voltage regulator question

    Talked to keithj and he mentioned I might test the resistance between the slip rings. Seemed a little low compared to what he mentioned. 8.5 ohms. Reading between the slip rings and the alternator body is infinite, so no short there. What should a correct resistance reading between the two...
  14. T

    Alternator, voltage regulator question

    Ok, just measured... the diameter of the ring on the Prestolite/Southern Automotive measures about 5.240". The Hellas about 5.210" .015" of radius isn't so much to remove on the lathe, but before I do this I'd want a little more assurance that it would actually work. I *think* it will...
  15. T

    Alternator, voltage regulator question

    The regulator won't physically fit. The ring that fits inside the alternator body is just slightly too big. I might could make it fit by chucking it up on the lathe and turning the ring down a hair. But I don't know if that's such a great idea.
  16. T

    Will a humvee transmission swap into a CUCV?

    Interesting. Any idea on what would be involved in modifying one of these to restore Park?
  17. T

    Alternator, voltage regulator question

    lol, doghead.
  18. T

    Alternator, voltage regulator question

    Thanks for the help. I think I'm just going to turn my computer off and go read a book or something. Sick of wasting money.
  19. T

    Alternator, voltage regulator question

    Seilman SA Hellas
  20. T

    Will a humvee transmission swap into a CUCV?

    So what would happen if you tried to put the lever on P? Would the cable simply not let you? I can see someone unfamiliar with it accidentally putting it in reverse instead of park if that is the case...
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