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  1. #1
    New Member
    Join Date
    Aug 2012
    Posts
    1
    Location
    Lawrenceville, GA
    Tractor
    1991 Kubota M4030SU

    Default Kubota M4030SU engine under stress

    '91 M4030SU engine sounds like it's running under stress (load) of some type. Xmission and Xfer case in neutral, PTO disengaged. When I shift the hydraulic output to secondary (nothing connected), engine idles smooth again. Shifting back to primary (drawbars) engine is stressed and after an hour runs hot.

  2. #2
    Super Member
    Join Date
    Apr 2000
    Posts
    6,208
    Location
    central New York
    Tractor
    all makes and models

    Default Re: Kubota M4030SU engine under stress

    Your out of adjustment and it should be in your owners manual.

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