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  1. cory

    Kubota R520 cooling problem

    :rockhard:
  2. cory

    Kubota R520 cooling problem

    So talked to a Kubota dealer service guy who has a reputation for being knowledgable, it seems it is the head gasket. One tell is there are bubbles surfacing in the coolant overflow tank when the engine is idling. Machine still runs perfect on level ground. Btw, same overheating occurs on a...
  3. cory

    Kubota R520 cooling problem

    It runs great, same as always.
  4. cory

    Kubota R520 cooling problem

    Bart it's diesel.
  5. cory

    Kubota R520 cooling problem

    I kept my old radiator very clean and the new one is pristine. Lotta very good info supplied by the 'House 🙏
  6. cory

    Kubota R520 cooling problem

    I just read all this stuff... the answer to the problem is likely in there somewhere, I 'spect. Right now I'm too shot to reply much but Imma look into all the stuff thou hast writ. :big-not-worthy::dude:🙏
  7. cory

    Kubota R520 cooling problem

    All good queries and suggestions. Yeah I'm gonna call svc dept. My mechanic thinks the next step is head gasket but i'm not feeling it, yet. Yes, checking radiator for level, though when I fill it to the top, alot pisses out of the overflow.
  8. cory

    Kubota R520 cooling problem

    Nothing of note in the manual
  9. cory

    Kubota R520 cooling problem

    Would that be different than just being on a hill?
  10. cory

    Kubota R520 cooling problem

    Yes I bought it new. I have heard about air bubbles, I'll check the manual.
  11. cory

    Kubota R520 cooling problem

    Definitely facing up, I gotta check out 180 and facing down
  12. cory

    Kubota R520 cooling problem

  13. cory

    Kubota R520 cooling problem

    Coolant pretty full, if I add more it pisses out the overflow. Water pump seems good. Belt tension good. I don’t think it has a clutch as the fan runs full time. Good idea re wire, idk
  14. cory

    Kubota R520 cooling problem

    19 y o machine, has always run perfect, but cooling issues last 6 months. Machine normally ran cool always, regardless of workload or ambient temp. Repalced radiator and thermostat. Runs cool some of the time but still acts up. Hot ambient temp can play a role but the thing that reliably seems...
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