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  1. #1
    Bronze Member
    Join Date
    Oct 2008
    Posts
    83
    Location
    Ontario, Canada
    Tractor
    Kubota BX 1850, CaseIH 385

    Default BX Idling

    Does anybody know why these small diesel engines on these tractors idle so high? (above 1000 rpm) Small diesel engines in autos idle at much slower rpm and are therefore much quieter!

  2. #2
    Silver Member
    Join Date
    Jan 2006
    Posts
    196
    Location
    Birch Run, MI
    Tractor
    Case 580C

    Default Re: BX Idling

    The general consensus here is that kubota does it so the tractor will pass emissions testing. Diesels dont run hot enough at 700rpms to burn off all the gasses the EPA wants them to burn.

    At 1300 rpms my hydraulics barely move anyways, there is no benefit to slowing the motor IMO
    Cat 420D
    Bota BX2360

  3. #3
    Platinum Member RayCo's Avatar
    Join Date
    Jul 2005
    Posts
    981
    Location
    Chester County, PA
    Tractor
    Kubota BX24

    Default Re: BX Idling

    Man, and tractor time used to be my escape from thinking about the government. Now I'll be thinking about my government-controlled idle speed.
    Ray
    BX24

  4. #4
    Silver Member
    Join Date
    Apr 2009
    Posts
    134
    Location
    Bella Vista, AR
    Tractor
    Still looking...

    Default Re: BX Idling

    yeah, i test ran a 2320 and 2920 and the 2920 idles higher than the 2320... thought it was interesting....

    I would think the only time we'd want them to idle lower is when it's running just sitting there.... waiting on US to do something

  5. #5
    Super Star Member TripleR's Avatar
    Join Date
    Mar 2009
    Posts
    16,924
    Location
    Missouri
    Tractor
    Kubota, John Deere, Case, Massey Ferguson, Ford

    Default Re: BX Idling

    Maybe to keep them from shaking themselves apart.

  6. #6
    Veteran Member rdsaustintx's Avatar
    Join Date
    Dec 2004
    Posts
    1,110
    Location
    Texas Hill Country
    Tractor
    Kubota BX-23

    Default Re: BX Idling

    Quote Originally Posted by TripleR View Post
    Maybe to keep them from shaking themselves apart.
    LOL (thinking the same thing)

  7. #7
    Gold Member
    Join Date
    Apr 2007
    Posts
    319
    Location
    Minnesota
    Tractor
    '07 Kubota BX2350

    Default Re: BX Idling

    Quote Originally Posted by rdsaustintx View Post
    LOL (thinking the same thing)
    Times 2
    '07 BX2350, FEL w/ toothbar, 60" MMM, 5' KK back blade, BX2750C front snowblower, 42" home built disc, carry all

  8. #8
    Platinum Member BigD23's Avatar
    Join Date
    Jun 2008
    Posts
    776
    Location
    Pac. NW
    Tractor
    Kubota BX23 TLB

    Default Re: BX Idling

    I shudder along with the engine when I turn the key off.

    Don

  9. #9
    Super Member timswi's Avatar
    Join Date
    Nov 2008
    Posts
    5,271
    Location
    Beaver County Pa
    Tractor
    Kubota BX23 TLB, Kubota RTV1100, Kubota Z724 & Polaris Sportsman 570 Touring

    Default Re: BX Idling

    Quote Originally Posted by BigD23 View Post
    I shudder along with the engine when I turn the key off.

    Don
    I cringe everytime I shut it off....I agree, any lower of an idle would have bolts flying everywhere
    BX23TLB with 54" MMM
    RTV1100 with 72" Power Angle Plow
    Polaris Sportsman 570 Touring

  10. #10
    Super Member radioman's Avatar
    Join Date
    May 2008
    Posts
    5,696
    Location
    Ontario, NY
    Tractor
    Kubota BX24

    Default Re: BX Idling

    Same here - I hate the way it shuts off. I really scares me and makes me wonder if I should have left it running 24/7 but then I would have too many hours. (maybe ill connect it to a pto gen LOL) . I am glad that I am not the only one feeling this way.

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