stanadyne fuel injection pump

Discussion in 'Mechanic and Repair' started by jaybird, Oct 24, 2004.

  1. jaybird

    jaybird LawnSite Senior Member
    Posts: 272

    i have a 47 horse john-deere 301-a with stanadyne pump it runs fine when you have bleeder nut open when you close it tractor acts like it runs out of fuel. any help would be good.
     
  2. UNISCAPER

    UNISCAPER LawnSite Bronze Member
    Posts: 1,426

    Did you just replace the punp or has this machine just started doing the problem you are descxribing?

    If you just replaced the pump, it sounds like it may be a tooth off on timing. Too much fuel. not enough air.
     
  3. jaybird

    jaybird LawnSite Senior Member
    Posts: 272

    it just started doing it. pump replaced in 1997.
     
  4. ducky1

    ducky1 LawnSite Senior Member
    Posts: 252

    Is your air cleaner dirty?
     
  5. Gravel Rat

    Gravel Rat LawnSite Fanatic
    Posts: 9,544

    Is this a common problem is this machine have a 3 cylinder diesel or 310 Backhoe ?

    What you described is the same problem we have with our 310 Deere it was suggested we rebuild the pump. Supposidly this is a real common problem there is some kind of rubber diaphram that breaks in the pump so it will idle but won't rev up just dies.

    Take the pump off and have it checked over it probably will need rebuilding you may want to pop the injectors out and have them tested too.
     
  6. jaybird

    jaybird LawnSite Senior Member
    Posts: 272

    thanks for the help, they are rebuilding the pump now should be ready monday sometime mean while i have a tractor rented. thank yall again.
     

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