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  1. #1
    Platinum Member
    Join Date
    Aug 2013
    Posts
    614
    Location
    Brookshire & Galveston, Texas
    Tractor
    Ford 1215 & New Holland T4.75

    Default Breaking In A New Diesel Engine....

    I have less than 10 hours on a NH 3050 and all my projects lately have been minor brush clean up where I do not need to run the engine over 1500 rpm. Is there any harm during the break in period running this slow or should I drop into a lower range where the engine rpm's run higher sometimes? Thanks....

  2. #2
    Gold Member Recoveryhill's Avatar
    Join Date
    Sep 2010
    Posts
    398
    Location
    St. Croix, Virgin Islands
    Tractor
    Kubota L3700SU

    Default Re: Breaking In A New Diesel Engine....

    My belief is that rpm's should be varied during break-in and high rpm's should be avoided. 1500/2000 is a nice easy revolution for a new engine. Would I hesitate to go to PTO rpm's after ten hours? No, but I wouldn't work a machine at that speed all day long either, until I hit a 50 hour oil/filter change.

  3. #3
    Veteran Member MHarryE's Avatar
    Join Date
    Feb 2009
    Posts
    1,867
    Location
    Northeastern Minnesota
    Tractor
    JD 7720; Kubota M135GX, NH TS115A; JD 6230; Kubota L5740

    Default

    Interesting. My engineering career involved three products - grain combines, vibratory compactors and mills - the machines that mill asphalt roadways. All run at two speeds, low idle or full throttle. The compactors use the full range of engines used in tractors from CUT to medium size ag (175 HP). Running at less than full speed a combine will not separate the wheat from the chaff and the vibratory compactor will be a Flintstonemobile. Life problems from running full speed high power from the start- zilch. Problem running constant speed - zilch. Expected life - 10,000 hours to first overhaul except for the smaller compactors where it is 5,000 hours and the large mills where we're talking 30,000 hours. Think about other uses for Diesel engines like gen sets where they need to produce 60 Hz AC from the start. Taking it easy at the start of a tractor - no problem, but if they require a specific break-in prior to doing the job for which it is intended they should do it before it is delivered.
    JD7720; KubotaM135GX; NH TS115A; JD6230; KubotaL5740

  4. #4
    Veteran Member dieselcrawler's Avatar
    Join Date
    Jan 2008
    Posts
    1,402
    Location
    New Martinsville WV
    Tractor
    2013 JD 3005 2001 Kubota BX1800

    Default Re: Breaking In A New Diesel Engine....

    I got my 3005 with 1.8 hours on it... aka new from the dealer. I took it easy for the first few hours but then WOT with the brush hog. Did the 50 hour oil change today @ 54.2 hrs. I'm not too worried... run it how you plan to run it.
    Greg AKA DieselCrawler
    2013 JD 3005 4x4 w/loader, 530 squirrel power diesel, with gravity power-reverser
    2000-ish Kubota BX1800HST

    Trucks:
    1999 F250 4x4 7.3L diesel 6spd. Sidelined due to motor issues
    2000 F350 4x4, 7.3L diesel, auto, daily driver
    2000 Excursion 4x4 7.3L diesel, wife's ride
    84 Chevy K-30 turbo diesel farm truck, play truck, one ton running gear, locked up, on 39.5" boggers,
    Redheaded wife, 6 kids, buncha rabbits, 5 horses/ponies, some cats, 4 dogs

  5. #5
    Elite Member
    Join Date
    Dec 2007
    Posts
    3,201
    Location
    texas
    Tractor
    7040 HDC 1153 fel

    Default Re: Breaking In A New Diesel Engine....

    what they are referring to as easy break in is not running the motor well over 2000rpms.i work my tractor at 1500 to 2000 rpms.

  6. #6
    Veteran Member
    Join Date
    Nov 2012
    Posts
    1,322
    Location
    mansfield,Il
    Tractor
    john deere

    Default Re: Breaking In A New Diesel Engine....

    WOT ' seat the rings best break in these engines .

  7. #7
    Elite Member bigtiller's Avatar
    Join Date
    Feb 2006
    Posts
    2,666
    Location
    central Iowa
    Tractor
    JD 2720

    Default Re: Breaking In A New Diesel Engine....

    Harry is right on, run it like you rented it.
    HAVE FUN

    Life is easier when you plow around the stumps.


    2720

  8. #8
    Super Star Member TripleR's Avatar
    Join Date
    Mar 2009
    Posts
    17,973
    Location
    Missouri
    Tractor
    Kubota M8540HDC, L5740HSTC, BX2200, BX2660, John Deere 425&1025R, Case, Massey Ferguson, Ford

    Default Re: Breaking In A New Diesel Engine....

    Always lots of opinions on break-in no matter the engine. I am neither an engineer or mechanic, so I just go with the manual which has worked well for me so far. I've found I can do pretty much everything I need to do and stay pretty darned close to the manual.

  9. #9
    Veteran Member
    Join Date
    Jul 2010
    Posts
    1,461

    Default Re: Breaking In A New Diesel Engine....

    I don't abuse my tractor and have never abused rental equipment.... manuals are good guidelines but are often written to reduce liability for the vendor (notice the pages of warnings and cautions and stop signs?)...
    2007 Kubota L3130, LA723 FEL
    Land Pride FDR1672 rear finish mower, Frontier RB1172, Koyker KB60 BH
    Pallet forks, Golf cart canopy bolted to ROPS, 9" & 12" PHD
    2016 Ferris IS700Z 52" Briggs 27hp commercial turf series

  10. #10
    Super Member Gary Fowler's Avatar
    Join Date
    Jun 2008
    Posts
    9,453
    Location
    Bismarck Arkansas
    Tractor
    2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010

    Default Re: Breaking In A New Diesel Engine....

    IIRC my tractor manual said to run it at full load and vary the throttle setting from mid range to WOT. Nothing worse on a diesel than to run it at 1500 RPM during break in and none to very light load. Loading it helps to seat everything in and prevent later problems with oil consumption. Large Ag tractors are typically demonstrated using largest equipment that they can pull at WOT, that is what they are designed to do so it doesn't hurt the engine to run that speed from the get go as long as you let it warm up first after starting.
    2010 LS P-7010C 20F/20R gear tractor & FEL, 2009 Kubota B 26 TLB, RTV 900 Kubota,17 foot Lund boat with 70HP motor, 2012-20 ft 12k GVW trailer, 2011- 52" Craftsman ZTR mower, 2013 Ferris Zero Turn, 3 weed whackers, pressure washer, leaf blowers, 7 foot bush hog, 8 foot landscape rake , 8 foot 3 PH disc, 2 row cultivator, 350 amp Miller AC/DC welding machine and all the tools needed to keep them all repaired and running.

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