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  1. JerryMT

    Parts are parts, right? Wrong…

    Glad your persistence paid off. Now that you are great at doing a clutch on a B7100, you'll probably never have to do it again! Life is like that.
  2. JerryMT

    Kubota tractor overheating when fan replaced to electric. (Kubota G1900S (D722))

    There's your problem. You buggered up the shroud! the tip of the fan is working in separated air. That shroud's shape is important.
  3. JerryMT

    1989 b8200 block heater question

    I believe these are IDI (Indirect injection) engines and they are typically hard starting. Block heaters make the engine turnover faster and the warmer cylinder walls help the combustion process to start quicker than a cold cylinder wall.
  4. JerryMT

    M126GX WATER IN HYDRAULIC FLUID

    That's correct it should not get milky looking. I had an old Ferguson TO-30 that would invariably show some water in the transhydraulic fluid if I let it sit too long (I didn't do it often). I would use it for about an hour hauling an irrigation pipe trailer and there was no sign of water in the...
  5. JerryMT

    Mx5200 elec issues

    Check the chasis ground. If the ground is missing, you won't measure any voltage.
  6. JerryMT

    M126GX WATER IN HYDRAULIC FLUID

    Most water gets into the hydraulic oil via condensation. It's a common problem. Water can get into the gear box and HST oil from the same source. Periods of long non-use exacerbates this. When you work the tractor and the oil heats up, water will evaporate. Certainly some water can get in via...
  7. JerryMT

    Kubota KX41 revs dropping when hydraulics are activated

    "checked governor spring, forks and flyweight. Worn but nothing broken or missing" From your first post, "worn" is the operative word. Could that be the problem? And you still have the hydraulics to figure out.
  8. JerryMT

    Kubota KX41 revs dropping when hydraulics are activated

    Per your hydraulic schematic, there are three pumps; P1,P2, and P3. Did you disconnect all of them? I'll take your word that the rpms are fluctuating because I don't see that on your video. If that is so, I'd suspect the governor mechanism in the IP.
  9. JerryMT

    Kubota KX41 revs dropping when hydraulics are activated

    Per your hydraulic schematic, there are three pumps; P1,P2,and P3. Did you disconnect all of them? I'll take your word that the rpm is fluctuating because I don't see it on your video. If that's true, I'd suspect the IP governor is the problem.
  10. JerryMT

    Kubota KX41 revs dropping when hydraulics are activated

    Looks like that part of the fuel circuit is working.
  11. JerryMT

    Kubota KX41 revs dropping when hydraulics are activated

    "Pre-IP return to the tank is definitely free flowing. It pours in there pre-startup." What about the return to tank from the IP/injectors itself?
  12. JerryMT

    Kubota KX41 revs dropping when hydraulics are activated

    The diagram in a previous post shows several relief valves; a1, a2, b1, b2, b3, b4, etc plus the relief ahead of the return filter. Getting a gauge on the return line as well as the high pressure line would also be helpful for diagnostics. How long between hydraulic filter changes? What's the...
  13. JerryMT

    Kubota m7030su wont start

    Check your battery terminals and especially your battery ground connection on the chasis. Your glow plugs won't keep a good battery from rolling over the starter. Jump direcly from your battery to the starter with jumper cables. This takes the battery cables out of the picture and if the...
  14. JerryMT

    Kubota KX41 revs dropping when hydraulics are activated

    I'm not familiar with this specific machine but I assume the fuel output you are showing is from the connection to the injector pump (IP) connection. If so that looks like adequate fuel supply between the tank, the main filter, the lift pump, auxiliary filter, and to the IP. If the problem is...
  15. JerryMT

    Kubota KX41 revs dropping when hydraulics are activated

    Did you check the actual fuel flow to the injector pump? Since you had "...water and gunk..." in the tank, you might have crud in the head of the fuel filter that is restricting flow. If you have a lift pump, is it functioning properly? I would disconnect the line at the line going to the...
  16. JerryMT

    Block heater help

    It's not an "air bubble"! It is flow separation at the downstream side of the cylindrical heating element. the separated flow does not adequately transfer heat and the element locally heats up and burns out.
  17. JerryMT

    Proper operating temperature

    The smell probably comes from a small leak. Can't help you on the temperature indicator. What does your owner's manual say?