Page 5 of 8 FirstFirst ... 2345678 LastLast
Results 41 to 50 of 75
  1. #41
    Gold Member
    Join Date
    Mar 2012
    Posts
    378
    Location
    NSW Australia
    Tractor
    Tractors16-600hp Farm & Earthmoving Equip, Trucks etc.

    Default Re: What motor lasts longer

    Quote Originally Posted by rd_macgregor View Post
    Hmmm. I wonder if a closer comparison might come from Europe where the proportion of diesel automobiles is very high. The uses of these vehicles would be very similar, so a comparison of maintenance and/or lifespan would be closer to an apples-to-apples comparison.
    Now the question is, "does anybody have these data for Europe?"
    BOB
    Unfortunately we're increasingly comparing "apples with oranges", IMO any European maintenance/lifespan statistics are not relative to US, Canadian, Australian ..etc markets for many varied reason's, including:-
    - Most European passenger vehicles/SUV engines are under 2.5litres (c.153CI) for historical reasons of capacity linked road taxes & rarely exceed much beyond 3litres *c.183CI)
    - Geography/Population density means than annual European mileage is much less, with a predominance of short hauls often where the engine does not reach/sustain operating temperatures with consequential effects on wear/durability
    - Still the preference for manual gearboxes in Europe, in unskilled hands an auto is more sympathetic to the narrow lower RPM/high torque ideal operating characteristics of a diesel engine
    -..etc...

    I'd suggest most likely "apples to apples" would be the same vehicle, similar engine capacity/output/performance characteristics - maybe a global comparison of say the 2006 model year on BMW X5 3litre inline 6 petrol (272hp) & diesel (265hp) as they shares some common engine components, similar weights, technical architecture & performance characteristics, albiet torque/gearing differs..
    Maybe over to those high mileage X5's owners for input/experiences......
    Last edited by MBTRAC; 11-30-2012 at 12:08 AM.

  2. #42
    Super Member
    Join Date
    Sep 2000
    Posts
    6,553

    Default Re: What motor lasts longer

    Quote Originally Posted by Katahdin View Post
    I was trying to install the thought that if you run a gas engine at the same design rpms, stroke, etc of a diesel it may last a lot longer than the perception most people have.

    Please define "same amount of work."

    I'm not biased either way, I have a diesel engine, gas engines, and a multifuel engine that will run on gas or diesel. I just know that the characteristics of each are very different and I need an all-things-equal comparison criteria so I can put my head around it.
    Your thought was good, but the example was poor. If you change it to a gas engine in a car going down the freeway but instead of being in OD at 75 mph, put it in front of a 20k trailer load with 4 stuck brakes in a stiff headwind and the car is in 1st gear at the red line rpm. How long will that engine last? I don't KNOW either, but my guess is that it will self destruct in hours to days. Your typical tractor engine pulling a bottom plow is at the same type of load, but it is expected to last 10,000 hours in that situation or more. Often much more.

  3. #43
    Super Member 94BULLITT's Avatar
    Join Date
    Feb 2011
    Posts
    7,487
    Location
    Frederick County, VA
    Tractor
    Kubota BX2360 & L4240 HSTC

    Default Re: What motor lasts longer

    Quote Originally Posted by john_bud View Post
    Your thought was good, but the example was poor. If you change it to a gas engine in a car going down the freeway but instead of being in OD at 75 mph, put it in front of a 20k trailer load with 4 stuck brakes in a stiff headwind and the car is in 1st gear at the red line rpm. How long will that engine last? I don't KNOW either, but my guess is that it will self destruct in hours to days. Your typical tractor engine pulling a bottom plow is at the same type of load, but it is expected to last 10,000 hours in that situation or more. Often much more.
    What about a gas engine on a old tractor? A tractor engine is different than a automotive application, a tractor can be ran full throttle all day long and not hurt.

  4. #44
    Banned
    Join Date
    Dec 2011
    Posts
    1,129
    Tractor
    L5450

    Default

    How about these old Masseys? Gas and diesel in the same engine block.

    http://www.tractordata.com/farm-trac...35-engine.html

    They had the AD3.152 and down the page farther the AG3.152. Both used the same block, low revving at 2000 according to this page. Which of these would last longer?

  5. #45
    Epic Contributor Soundguy's Avatar
    Join Date
    Mar 2002
    Posts
    48,627
    Location
    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: What motor lasts longer

    Quote Originally Posted by 94BULLITT View Post
    What about a gas engine on a old tractor? A tractor engine is different than a automotive application, a tractor can be ran full throttle all day long and not hurt.
    msny times that's a cooling issue.. you can take a sprts car with a 350hp capable engine and a cooling system capable for 160hp... the car only uses that 350hp on the hard accel in traffic.. otherwise it's pulling 100hp for most stuff...

    many tractor cooling systems are rated for the 'rated' hp output of the engine..e tc.

  6. #46
    Elite Member
    Join Date
    Feb 2012
    Posts
    4,805
    Location
    Washington NC (Inner Banks)
    Tractor
    Kubota L5740, Gravely 8199G

    Default Re: What motor lasts longer

    How about these old Masseys?
    Perkins diesel vs. a Continental gas engine. I'd go with the Perkins, they've been making industrial diesels for a long time.
    Which is not to say a properly maintained Continental (is this the same co that makes engines for Piper Cubs and similar?) would not last
    exceptionally long, for a gasoline motor...
    2012 Kubota L5740HSTC3 with FEL and Long grapple, 1986 Case IH 255, Land Pride PD10 PHD, LP RCR60 & RCF2084 mowers, LP 4' box blade and rear rake, Fred Cain subsoiler, County Line potato plow, County Line 1 bottom plow, 1986 Gravely 8199G with tow behind DR rototiller, 50" deck+40" Gravely wing mowers, Swisher 44 rough cut mower,, Echo 450-18 & 600-24, Echo PPT280, 2014 JD X750 diesel garden tractor, 1968 Cub Cadet 125 under renovation, Husky-Speeco 35 ton splitter, DR tow behind string trimmer

  7. #47
    Super Star Member murphy1244's Avatar
    Join Date
    Nov 2011
    Posts
    17,024
    Location
    Ohio
    Tractor
    Kioti DK 40-Massey ferguson 135-Ventrac 4500 Diesel

    Default Re: What motor lasts longer

    Quote Originally Posted by daugen View Post
    How about these old Masseys?
    Perkins diesel vs. a Continental gas engine. I'd go with the Perkins, they've been making industrial diesels for a long time.
    Which is not to say a properly maintained Continental (is this the same co that makes engines for Piper Cubs and similar?) would not last
    exceptionally long, for a gasoline motor...
    I have a 67 Massey 135 diesel with 5150 hours and it purrs like a sewing machine.
    Murph ------------

  8. #48
    Platinum Member spruce Deere's Avatar
    Join Date
    Feb 2009
    Posts
    706
    Location
    Northmost Idaho
    Tractor
    John Deere 790 w/ 300 loader

    Default Re: What motor lasts longer

    Slightly loaded question but my answer is Diesel.....
    790 JD W/ 300 loader
    Lots of implements for loader and 3pt
    Can't do it burn'n diesel, is not worth do'n

  9. #49
    Super Member 94BULLITT's Avatar
    Join Date
    Feb 2011
    Posts
    7,487
    Location
    Frederick County, VA
    Tractor
    Kubota BX2360 & L4240 HSTC

    Default Re: What motor lasts longer

    Quote Originally Posted by Soundguy View Post
    msny times that's a cooling issue.. you can take a sprts car with a 350hp capable engine and a cooling system capable for 160hp... the car only uses that 350hp on the hard accel in traffic.. otherwise it's pulling 100hp for most stuff...

    many tractor cooling systems are rated for the 'rated' hp output of the engine..e tc.
    It is mostly due to the car turning more rpm. There automotive engines that are have been built for industrial applications but they are governed. I know a guy that has a chipper with a ford 300 inline six industrial, I think it is even a reverse rotation. There are also SBF Fords for marine use but the have a Marine block.

  10. #50
    Veteran Member
    Join Date
    Dec 2010
    Posts
    1,078
    Tractor
    Massey

    Default Re: What motor lasts longer

    Me thinks the underlying perseptions of almost everyone, makes the diesel seem like the answer. Those perseptions are very skewed.
    You have to break that train of thought and realize, that it is not a fair comparison to group 2 engine types by internal or external size, which everyone does by nature. The fact is you are comparing a diesel that weighs almost twice the weight of the gas engine, and costs 2-3 times the price.
    Compare same priced gas engine to a same $$ diesel, and you will likelyvfind your longevity results will be very even. Because for the same $$ you can buy a much more powerful gas engine that could be run much less loaded.

Page 5 of 8 FirstFirst ... 2345678 LastLast

Similar Threads

  1. 0% was but is no longer truly 0%
    By JOHNTHOMAS in forum Kubota Buying/Pricing
    Replies: 29
    Last Post: 04-04-2011, 01:26 PM
  2. Not much longer.
    By Thomas in forum Related Topics
    Replies: 18
    Last Post: 10-16-2009, 09:09 AM
  3. Longer Top Link or Longer 3pt Tractor Bracket
    By stevenf in forum Owning/Operating
    Replies: 8
    Last Post: 06-26-2006, 09:54 AM
  4. Replacing Drillpress AC motor with DC motor?
    By VinnieNC in forum Related Topics
    Replies: 13
    Last Post: 05-18-2006, 10:29 PM
  5. Not much longer.
    By Thomas in forum Related Topics
    Replies: 6
    Last Post: 07-30-2000, 11:32 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.