Forgive me as I'm not at all familiar with your tractor, is it mechanical or fully electronic? If mechanical, then turning fuel down a touch will be easy. If it's electronic, snap a picture of the ecm part number on the outside of the ecu case and I'll talk to some friends.
Particulate filter delete
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finn1
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If it痴 an older machine with a mechanical fuel system there won稚 be a diagnostic port....electronics make things so much easier, despite what some of the old timers here think...
Anyway, I am not familiar with older Kubota equipment, but here are a couple of things to look at, based on the old Diesels I am familiar with.
A turbo engine shouldn稚 smoke under steady state conditions under load, as long as the injection pump hasn稚 been messed with. It may smoke some on acceleration if it has an incorrectly adjusted aneroid (which is sometimes called a puff eliminator.).
If it smokes under load, the injectors may be faulty, or the timing may be retarded. Retarded timing may also show up as white smoke under cold starting and light load operation.
Retarded timing could be the result of low fuel pressure, sometimes related to filter plugging, with some fuel injection systems that rely on fuel pressure to operate the timing advance mechanism.
Low cetane fuel also contributes to white smoke, particularly at high altitudes, as does low cylinder pressure from worn piston rings.
For a black smoke issue, though, if the air filter and fuel filters are clean and the engine is developing adequate boost, I would first pull the injectors and bring them to a diesel shop and have them pop tested and check the spray pattern for obvious inconsistencies.
Anyway, I am not familiar with older Kubota equipment, but here are a couple of things to look at, based on the old Diesels I am familiar with.
A turbo engine shouldn稚 smoke under steady state conditions under load, as long as the injection pump hasn稚 been messed with. It may smoke some on acceleration if it has an incorrectly adjusted aneroid (which is sometimes called a puff eliminator.).
If it smokes under load, the injectors may be faulty, or the timing may be retarded. Retarded timing may also show up as white smoke under cold starting and light load operation.
Retarded timing could be the result of low fuel pressure, sometimes related to filter plugging, with some fuel injection systems that rely on fuel pressure to operate the timing advance mechanism.
Low cetane fuel also contributes to white smoke, particularly at high altitudes, as does low cylinder pressure from worn piston rings.
For a black smoke issue, though, if the air filter and fuel filters are clean and the engine is developing adequate boost, I would first pull the injectors and bring them to a diesel shop and have them pop tested and check the spray pattern for obvious inconsistencies.
ericm979
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First I have heard of it. It sounds great and there's stations not too far from me. Thanks for mentioning it.
My Branson's a dinosaur swirl chamber mechanical injection but with with a DOC+DPF for Tier 4. It sounds like with HPR I'd still get a bit more power from higher cetane and less soot for the DPF to deal with? Or is it not worth the bother?
finn1
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Higher cetane won’t give you more power, as long as the cetane og your current fuel is so low that you have misfire going on.
Power is primarily a function of specific gravity of the fuel.
I have not heard of a commercially available 75 cetane fuel.
I do know there was a contingency of engine manufacturers pushing for specs in the 50-59 range, but I have been retired for a while, so I don’t know what derailed that proposal.
I assume it was cost and pushback from the petroleum companies.
Power is primarily a function of specific gravity of the fuel.
I have not heard of a commercially available 75 cetane fuel.
I do know there was a contingency of engine manufacturers pushing for specs in the 50-59 range, but I have been retired for a while, so I don’t know what derailed that proposal.
I assume it was cost and pushback from the petroleum companies.
DrRighteous
Member
Greets all.
Looks like I'm buying my brother in laws L3301 Kubota which is only a year old and he can't make the payments. My little Allis Chalmbers 5020 is just too light weight for the jobs that need to be done here.
My experience is only with older tractors so I started doing some research and almost fell out of my chair when I found that this diesel tractor are equipped with DPF devices now!~!! WTH!! So my first course of action will be to remove/disable it somehow.
Looks like I'm buying my brother in laws L3301 Kubota which is only a year old and he can't make the payments. My little Allis Chalmbers 5020 is just too light weight for the jobs that need to be done here.
My experience is only with older tractors so I started doing some research and almost fell out of my chair when I found that this diesel tractor are equipped with DPF devices now!~!! WTH!! So my first course of action will be to remove/disable it somehow.
ericm979
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Tractors under 75hp have easier to meet emissions limits than diesel pickups. Their emissions systems are simpler. They don't require DEF and generally don't cause reliability problems. There's been a few models that have had issues but the L3301 is not one of them. Follow the manual and use it hard every once in a while and it'll be fine. And you'll enjoy the cleaner exhaust.
mopardude318
Platinum Member
Here is an Ebay link where you send your ECU to this company and they do a DPF delete. They advertise for the Kubota M7060. Did someone finally crack the Kubota computer?
KUBOTA M7
DPF EGR DELETE MAIL IN ECU SERVICE KUBOTA DPF DELETE | eBay
KUBOTA M7
DPF EGR DELETE MAIL IN ECU SERVICE KUBOTA DPF DELETE | eBayedgarrian
Platinum Member
Personally I think the DPF is a sacrifice that the consumer has to pay for. Basically were on the hook. Im really surprised how many people turned this into a climate discussion as far as keeping the air clean. People suggesting that DPF will only help my KIDS in the future. Personally I hate when people use their kids to support ideas. Just stand up and give your opinion and don't use your child to enforce your opinion. Your child will likely have differing opinions once they become an adult. Id also like to point out that all my grandparents lived well into their 80's. All while breathing in that black soot that some of you are so worried about.
How long has diesel engines been around? And people using them? I'm pretty sure if they were causing cancer it'd be pretty obvious.. Stop drinking the cool-aid..
Back on topic..
Does any have a video of this delete being done on a 5075e or similar. Other than removing the BS filter and re-programming, what else is there? Blocking off EGR?
If this would help fuel mileage it'd have to be a big win.. I can burn 17 gallons in less then a day..
Back on topic..
Does any have a video of this delete being done on a 5075e or similar. Other than removing the BS filter and re-programming, what else is there? Blocking off EGR?
If this would help fuel mileage it'd have to be a big win.. I can burn 17 gallons in less then a day..
finn1
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Data linking diesel exhaust has been around for decades. Including early studies from the London bus garages.
You can’t put your head in the sand and ignore science.