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  1. Keith_J

    M1009 Understanding Warm Start Woes

    Check cranking speed, a worn starter can be sluggish when warm. Diesels need cranking speed, even when warm. The last 1009 I saw that had the same issue had nubbins for brushes and bushings worn plumb out. An overhaul kit brought it back to life.
  2. Keith_J

    27SI ROTOR rewind?

    The autozone DL7157 rebuilt I got is a genuine Delco core. It won't be a waste of time for me to rewind it, nothing special. Just pull the claw pole off the rotor at the drive end, desolder or braze the slip ring connections and the spool should slide off. I can get the wire for $10 a pound...
  3. Keith_J

    27SI ROTOR rewind?

    I went to the local rebuilder, they only had series 200 type 27SI rotors. But at $128, the Autozone alternator was cheaper and right now. It LOOKS rebuildable, the drive end claw pole is pressed onto the shaft over splines, there are two holes which could be tapped to hold that pole piece...
  4. Keith_J

    27SI ROTOR rewind?

    It finally hit me, an alternator that a repair kit couldn't fix. Since I couldn't find a replacement rotor and the vehicle is a daily driver for the youngest son, I broke down and bought an autozone non isolated ground. It I'd for the left side position, working fine now. looking over the...
  5. Keith_J

    Hot type Vulcanized tire repair info sought.

    Setting fire to cement is certainly bad, it isn't hot patching. In hot patching, the patch is vulcanized or changed from a gummy rubber to a cured, harder rubber. Think bubble gum for unvulcanized rubber. Tire shops had electric patch heaters but self contained slow match type heaters were...
  6. Keith_J

    MEP-002A hz dropping under load

    Sounds about right for 4500 watt water heater element.  Power factor is unity for resistive loads, these are rated at 80% power factor so that is why a load that would be 90% is only 65%.<br><br>Your issue may be with dirt and varnish in the injection pump.  Follow the throttle linkage to the...
  7. Keith_J

    M1009 radiator replacement 432098; engine oil cooler lines don't fit

    Wow, they must be made of gold. Thankfully I was able to repair the tank seam leak in my step son's 1009. Not EPA or OSHA approved method, torch and blow gun to get the old solder off, then clean to bright metal and coat with flux. Clamp together and solder away. i used a Rubbermaid stock...
  8. Keith_J

    Engine Performance: Sudden drop in power during acceleration. Idles/starts well.

    Also check fuel sock in the tank, water in fuel causes bacterial sludge which then colonizes on it, obstructing flow.
  9. Keith_J

    MEP-002A hz dropping under load

    Or if the manual throttle at the control panel cannot correct the droop, then the engine is weak.
  10. Keith_J

    Snorkel idea

    Vents in the bottom of updraft cleaners is for mist and snow melt draining.
  11. Keith_J

    Snorkel idea

    For looks only, the torque converter will add a bunch of drag unless you seal that. Plus the vents for transfer and axles. Then there is the cooling fan, alternators and power steering pump. Many don't realize fording ops for military vehicles is more than plugging the bell housing and...
  12. Keith_J

    What have you done to your CUCV today/lately - Part 2

    I brought home my new dog in the 1031. 3yo GSD male. Turned on the AC and he sat the entire way. Now he is glued to my side. Going to make him my EOD bomb sniffer
  13. Keith_J

    CUCV Replacement Heater Cores - No or Low Heat Output Reason

    Durn it, the spectra core seems to have sprung a leak, I bypasses the core by plugging the water pump and radiator hose barbs. Too hot to work on it. But could be just hose clamps.
  14. Keith_J

    MEP-002A hz dropping under load

    If over adjusted, the frequency will hunt or oscillate instead of drooping ( falling freq on load). Adjust for minor hunting when major load( 80% or greater of rated) is disconnected. Typically hunting should subside within 30 seconds.
  15. Keith_J

    Picked up 6 MEP-802A gensets and will be documenting making them all runners here

    I found a gun cleaning product called Pro Shot Copper Solvent IV takes the gunk off diesel pistons faster than scraping, especially in ring grooves. It is water based, a few Q-tips full cleans the ring grooves fast. It also works on gasoline engine pistons.
  16. Keith_J

    FINALLY landed my MEP-003a!!!

    Welders like having all the prep work done, that is 90% of the work. On these tanks, the metal is fairly thick but use care in removing the paint around the holes to avoid thinning. On the inside, I used acetone rinse, then let that air out, followed by phosphoric acid rust treatment. Then...
  17. Keith_J

    FINALLY landed my MEP-003a!!!

    If you were closer, I have gotten good at TIG welding those pesky pinholes. First, it must be clean. Then, clean inside. I use a burr to open the hole until back to good metal, then slowly fill the edges until closed after argon back purge. I would recommend POR tank sealant. I used hot...
  18. Keith_J

    Does Any One Know What These Alternators Were Used In ??

    The 4 amp rating is the regulator's maximum field output, basically the rotor is a spinning electromagnet, when the load increases on the stator coil, causing the output voltage to drop, the regulator increases field current, making the rotating electromagnet to become more powerful, causing...
  19. Keith_J

    FINALLY landed my MEP-003a!!!

    Both pumps are needed to keep the injector pump lubed and cool. It is fine for short periods but for ultimate reliability, both should run.
  20. Keith_J

    Genset engine on a GoKart or Lawn tractor?

    Sand rail. But remember, these are fixed ignition timing engines so the 84 is at best a 40 Hp engine. So running them through a hydrostatic drive makes the most sense. Except they be LOUD.
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