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  1. #1
    New Member
    Join Date
    Jun 2011
    Posts
    12
    Location
    eastern oh
    Tractor
    bx1860

    Default emissions question

    what is tier 3 or tier 4 and what would a 2011 bx1860 have?

  2. #2
    Silver Member
    Join Date
    Jun 2011
    Posts
    184
    Location
    Manitoba, Canada / Minnesota, USA ( I straddle the border)
    Tractor
    '12 Kubota B2620, fel,mmm,bh,bb

    Default Re: emissions question


  3. #3
    Elite Member
    Join Date
    Sep 2008
    Posts
    3,251
    Location
    NE USA
    Tractor
    JD LA115, WH 244, WH 525 hydro-pops,Original Troy Built Horse 8 HP

    Default Re: emissions question

    Quote Originally Posted by greenstang View Post
    what is tier 3 or tier 4 and what would a 2011 bx1860 have?

    For right now it would take too long to explain the tier 3 and 4 pollution
    regulations for diesel and gas engines.


    All or most all of the small diesel lawnmowers
    get around this by advancing the fuel pump
    timing slightly to reduce the emmisions at
    the tail pipe.


    As a result of the fuel injection pump timing
    change to get around the new E.P.A., regualtions
    the emmisions fall below the new limits.


    The amount of vibration is increased signifigantly and
    the kubota Band Aid approach has been to add
    platform isolators and heavy rubber mattting to
    "solve the issue" as they are of the opinion their
    is no VIBRATION problem period. There are many
    posts on the forum here regarding the supposed
    non existant vibration problem on all the smaller
    Kubota Tractors.


    They apparently have no desire to return the
    timing to the proper position and install a
    catalytic muffler instead of "their fix"

    They fail to realise how many freinds they
    would have if they did the above as no one
    else has for thier machines.

    if they installed a catalytic muffler the only
    emmisions would be carbon dioxide and
    water vapor.


    It is not hard to change and retard the timing
    back to the original setting with a shop manual
    for this engine.

  4. #4
    New Member
    Join Date
    Jun 2011
    Posts
    12
    Location
    eastern oh
    Tractor
    bx1860

    Default Re: emissions question

    would i have an egr valve? if so would it need cleaned like my 6.0l f250

  5. #5
    Veteran Member PHILIP8N's Avatar
    Join Date
    Sep 2009
    Posts
    1,227
    Location
    Indianapolis
    Tractor
    Kubota L3940 Ford 8N Ford 6000

    Default Re: emissions question

    Quote Originally Posted by greenstang View Post
    would i have an egr valve? if so would it need cleaned like my 6.0l f250
    It will not have an egr valve. Just fuel pump timing, in cylinder combustion solution (injection spray pattern), and closed crankcase ventalation. The engine is technically Tier 4 Interim. No reason to worry about these details. Philip.
    Kubota L3940HST-1 2009
    84" front blade
    LA724 loader w/quick attach
    HD 72" round back bucket
    turf tires
    Kubota GR2120 2013
    Ford 8N 1950
    Ford 6000 diesel 1961
    JD L110 2003
    Woods RD7200 finish mower, Land Pride RCR1272 rotary cutter, Bearcat CH5540 5" chipper, L8170 ballast box, 6' Woods pulverizer, 6' Dragon box scrapper with hydraulic rippers, 14" 2 bottom plow, sub-soiler, post hole auger, 3 point pallet forks, 30" rear scoop, 7' Land Pride RB1584 rear blade, 3 point boom pole

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