Kubota Tier 4 Engines

[buickanddeere]

Another article about the EPA regulating the diesel out of practical use and having to use a gasser instead .

The Impact of Tier 4 Diesel Engines| Concrete Construction Magazine | Tools and Equipment, Durability, Sustainability, Consolidation of Concrete, Pumps, Construction Contracts, Warranties, HVAC, Upselling and Cross-Selling, Lead-Safe Practices, Heating, Jobsite Equipment, Brake, Construction Management, Los Angeles-Long Beach-Santa Ana, CA, Bob Weatherton, Dan Roche, Hank de Carbonel, Greg Rostberg, Vijayakumar Palanisamy, Concrete Pump Store, CARB, California Air Resources Board, Briggs & Stratton, Multiquip, Whiteman, Bobcat, Atlas Copco, California

 

[Snowback]

Kubota does build DOC based engines, however the tractor division chooses not to use them. I don't know this for a fact, but my educated guess is there are longevity concerns. DOC engines need to run much hotter than DPF engines to clean up the exhaust. In the short term, no one knows is this is a real concern. Time will tell.

Thanks for making me think on this Messick.

With all due respect, are you saying that DOC engines are less reliable that DPF engines, or rather that they must be run hotter than DPF machines to achieve the same level of emission control as a DPF? Two very different things there. I have seen a similar statement from another poster on a different thread recently, (That DOCs need to be run hard they will clog up and not last as long), and I continue to seek support and back up for those types of statements. To this point I have found no studies to confirm, nor heard of any empirical evidence showing, that DOCs are unreliable or ineffective. If true, this is very important info in my opinion. I appreciate that these technologies are all somewhat new and being proven in the tractor world as opposed to road engines. A big part of my reason for picking up a DOC machine with the mCRD engine design was so that I could avoid running WOT like the DPF units per dealer recommendations. If the industry or certain dealers are misinforming us, then we need to figure it out here and enlighten new buyers. Hopefully we can do it without too much bias or preference to certain brands or the tractors we individually own. (Speaking to myself on that one...) Thanks in advance for your input or any citations and links!

 

[farmer2009]

That makes sense Messick. I would think that if New Holland and Mahindra had spent countless thousands of hours testing and designing those engines that hopefully longevity issues would be addressed. Until those units are out in the market for a while we really will not know for sure. Right now I can tell you that my Workmaster has been 100% trouble free for the first 22 hours. That includes about 10 hard hours of bush hogging in the 90 plus degree heat in an area that had not been mowed in a year and a half. Had to stop a couple of times to clean out the radiator to keep the engine cool. Tough sledding with a Brown 472 but the New Holland and Fiat engine ran great.

That is the one complaint I keep hearing. The new radiators are so small they keep clogged. My MX5200 is the same way. I have a buddy with an LS7040 he complains also. He said he didn't understand why tractor manufacturers didn't use a reverse flow fan. Like heavy equipment uses. He use to run heavy equipment for the mines. Said they had a lot less radiator clogging issues.

 

[Turbys_1700]

That is the one complaint I keep hearing. The new radiators are so small they keep clogged. My MX5200 is the same way. I have a buddy with an LS7040 he complains also. He said he didn't understand why tractor manufacturers didn't use a reverse flow fan. Like heavy equipment uses. He use to run heavy equipment for the mines. Said they had a lot less radiator clogging issues.

I don't think that the issue was as much undersized radiator fins as much as it was excessive debris due to the mowing and conditions. When I mowed this area several years back with the 8050 Allis I would encounter the same condition and need to stop and clean out the radiator. Time will tell.

One thing that I am somewhat curious about. I wounder if New Holland increased the cooling capacity on the 60 and 70 Workmaster versus the 50? You would think that they would generate more heat due to higher output engines. Perhaps Messick could help us out on this.

 

[My Hoe]

Subscribed.

 

[MiserableOldFart]

What parts would that be? Sheet metal and trim?

Sorry to reply to such an old post. I don't know if this is a dead thread because I haven't got to the end of it. Nor do I know if I responded before. In either case, I apologize. I'm looking at this thread now because I saw a used 2014 Kubota L3301 that I interested in and had no idea I read it before or commented on it. Old age.

Anyway, The Case dealer told me in 2006, and I believe he was telling the truth, that all the small replacement parts like seals, filters and stuff are made that way. If he was lying to me, I was wrong. But even so, just look at the number of different models out there and the frequency of changing them, you can see that getting parts 20 years down the road is going to be a nightmare. I wouldn't be considering trading in my New Holland machine after only 11 years* except for the huge cost of parts for it now, and the fear they won't be around at all in the future. I (hope not jinxing myself) don't need a fuel pump for my tractor, but if I do, it will set me back $1200. I looked up a Kubota pump and it was substantially less.

*My car is 16 years old. I traded in my 27 year old Dodge pickup (bought new) a few years back on an 2008 AWD van that had more miles on it. I take care of my stuff and expect it to last, but the current situation with these tractors is a whole 'nuther ball game..

 

[MiserableOldFart]

Thanks for the correction Messicks. But I have to say that though my NH TC26DA is fine tractor, I'm incensed at the price of parts, most of which I get from your business at a substantial discount.. My favorite example might be the two rubber pedal covers for the treadle pedal. I'm on my second set and the last time I looked it was like $55 to replace them. I will not be replacing them again if I have to figure out a way to make a mold out of them and make them myself. These are two parts that should be no more than ten bucks for the two of them, and I'm certainly not blaming you; as I mentioned your parts are discounted. Another example: the price of replacement decals. Yes, I like to replace them when they get ugly even though I'm the only one using the tractor..
Last example. First year I had the tractor the little knob on the loader handle vibrated loose and fell off. I spent a half hour looking for it, found it and was kicking myself for wasting time on a $3 part. When I got in the house I looked on your site, and saw back then - about 10 years ago - it was $19! That almost floored me. This for a wood knob the size of a golf ball...
Many other examples..

I do see now I'm at the end of a very old thread. sorry if resurrecting it is a nuisance.

 

[MessickFarmEqu]

I do see now I'm at the end of a very old thread. sorry if resurrecting it is a nuisance.

We don't disagree with you at all. Unfortunately we're the middle man when it comes to parts pricing, they can be insane before they get to us. This is part of the problem with tractors with so many outsourced components. As soon as CNH separated from Shibaru availability of implements dried up and parts pricing shot up. At our seat we can't tell who exactly is at fault, Shibaru could be the driver... and why would they care because their name is not on the hood. This is not a problem limited to CNH, it happens with all these companies who are re-branding other peoples stuff.