Recent content by Skrat

  1. S

    Air in fuel

    After the lift pump but before the injectors.
  2. S

    Air in fuel

    So the the second filter is after the fuel lift pump I guess. The in line filter is between the lift pump and the tank.
  3. S

    Air in fuel

    Hey auto docs, what fuel conditioner would you use?
  4. S

    Air in fuel

    Tell me about it. Well removed tank and cleaned it out. Replaced first in line filter. Second filter I replaced a few months ago and still looks clean. I could see the gunk in the first filter. Ran it for 20-30 minutes and no hiccups! However my second filter is only 40% full. Is that normal...
  5. S

    Air in fuel

    I did see a feather on the bottom of the tank. A farmer owned it before me. I forgot to mention in the last post the reason for why it was blowing black smoke. The owner before me turned up the fuel to try and get it more power he said. So I turned it down a turn or two and it doesn’t smoke...
  6. S

    Air in fuel

    Hello all, new owner of an old 721d2 here. My first diesel of any kind so excuse my ignorance on how to work on them. I am having trouble with the mower cutting out and then shutting off when I give it throttle. Won’t do it every time, just intermittently. When I first bought the mower it was...
  7. S

    725D Bogging and killing

    Hey electriceel, I know this post is old, but did you ever try an electric pump? I recently bought a 721d and having similar fuel problems. On mine I saw second fuel filter was 3/4 empty and air bubbles in the return line. Thought I had mine fixed when I found a seed in the pickup line after...
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