magicheater
Veteran Member
I share your feelings. I am finding that I can get many things done faster with the little guy. I save the L for the really big jobs which seem to be getting less and less........
B3200 Vibration Update
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funwithahoe
Gold Member
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Yeah - People (correctly so) look at me like I am crazy when I say there are some things I swear are faster with this smaller tractor but I think it handles better and My old "L" was a shuttle shift and this is a hydro so I never really set the RPM's at 2K and ran it (I think the transmission would have dropped out of the "L" if I did that) so loader work is actually a little faster. Also I think my expectations were low for the B3200 meaning that I thought I was buying a great lawn mower but it continually amazes me that it is a "real" tractor.
I know there are a lot of different opinions about tires but I am anxious to see how well this guy does plowing snow this winter (R4's) - I am going to try it without chains. I bought the front blade after using a scraper blade for the past 6 years and I am excited to be looking the correct direction and to have power angle. Also the scrapers don't "trip" when you hit something frozen up so my poor blade is all beat to heck. The Kubota front blade also has the risers to keep the blade a little off the gravel driveway so I am hoping to save on needing to rake the gravel out of my grass in the spring and needing a new 20 ton load of rock every spring.
I feel badly if some people are have major vibration issues and it sounds like there are some very real cases but that has not been my experience.
Only thing I really don't like and I think it is the same on all these little tractors is the 2500 or so RPM's it need to run the PTO. I woudl rather have larger displacement and let the engine run slower since it sounds like it is hard on the engine to run that fast but I am sure they last 5K hours or more at that RPM.
leonz
Super Member
The vibration issues are a basic problem with lower fuel delivery settings to comply with the EPA emmisions regulations and resultant low idle settings.
(this entire mess is solved by installing an exhaust gas purifier)
The engine crank shafts are balanced when machined and that is not the problem (refer to the above)
The engines are properly timed, and test run at the Kubota factory in Japan and they would blow up if there was a design flaw.
The dealers who say the problem is not fixable or typical are wrong as well as the repair utilizing steel plates bolted/cob jobs to the frames of the tractors in question when a simple fuel adjustment increase is all that is needed.
Thses same exact engines are used on other applications AND HAVE NO VIBRATION PROBLEMS.
These are identical engines that run a lot harder on the other applications that they are used in so no worries there, simply because the fuel settings are higher and not requiring fuel delivery reductions for the tier 3-4 emmisions for small tractors using indirect injection fuel delivery systems.
The folks at Foley Industrial Engine (Dr. Diesel to be specific) agree with me saying its is not an engine timing problem/baance issue (being fuel delivery specifically) as they are balanced-BTW he sells a lot of new and rebuilt Kubota engines.
An indirect injection diesel engine will compress and explode/ burn all the fuel that is delivered to each cylinder and the excess is pumped back to tank with the return line to tank.
Any amount of reduced fuel delivery affects the entire engine and EACH cylinders combustion cycle.
(this entire mess is solved by installing an exhaust gas purifier)
The engine crank shafts are balanced when machined and that is not the problem (refer to the above)
The engines are properly timed, and test run at the Kubota factory in Japan and they would blow up if there was a design flaw.
The dealers who say the problem is not fixable or typical are wrong as well as the repair utilizing steel plates bolted/cob jobs to the frames of the tractors in question when a simple fuel adjustment increase is all that is needed.
Thses same exact engines are used on other applications AND HAVE NO VIBRATION PROBLEMS.
These are identical engines that run a lot harder on the other applications that they are used in so no worries there, simply because the fuel settings are higher and not requiring fuel delivery reductions for the tier 3-4 emmisions for small tractors using indirect injection fuel delivery systems.
The folks at Foley Industrial Engine (Dr. Diesel to be specific) agree with me saying its is not an engine timing problem/baance issue (being fuel delivery specifically) as they are balanced-BTW he sells a lot of new and rebuilt Kubota engines.
An indirect injection diesel engine will compress and explode/ burn all the fuel that is delivered to each cylinder and the excess is pumped back to tank with the return line to tank.
Any amount of reduced fuel delivery affects the entire engine and EACH cylinders combustion cycle.
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Movintgt
New member
I too have vibration but only at what seems to be one rpm, bump it a little either way and it's gone. The ROPs rattleing used to give it away but I've killed that rattle and now only notice it in the FEL. I like my little tractor. I, like funwithahoe, used to have an L, I do miss the positioning control on the 3PH and the rocker pedal for the HST, but that's about all I miss. This little tractor has more power in a lighter body and can do anything I ask....well it can't push over 8-10 inch trees like the L could but....I also have a chainsaw.
RoyJackson
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Here you go...do a little light reading: Balance shaft - Wikipedia, the free encyclopedia
Inline 4 cylinder engines are inherently unbalanced so you'll get some vibration. There are ways to get around it, one of which is a balance shaft (which is what Porsche did with the 944 sports car engine).
So, some of the concerns expressed in this thread are due to the nature of the beast. Larger 4's (> 2 liters) are worse then the smaller engines.
funwithahoe
Gold Member
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Sounds lili something I would break more than fix if I decided to mess with it - It really isn't bad.
leonz
Super Member
No you will not break it.
Things to remember within which your diesel does work to provide energy.
1. The throttle controls the fuel delivery to provide power to do work.
2. The injection pump provides a METERED amount of fuel per revolution of
the crank gear that rotates the injection pump to provide fuel to each
cylinder or one cylinder.
3. The fuel delivery adjustment screw provides a metered amount of fuel
through the fuel rail to the INDIVIDUAL INJECTION NOZZLE which directs
the fuel to the top of the first individual cylinder when it is in the INTAKE
portion of the 4 cycle combustion process. The second and third or fourth
cylinder recieve the fuel the same way per revolution of the injection pump
drive gearing.
4. Any unburned fuel which not pulled in the top of each cylinder combustion
chamber is pumped back to the tank and recirculated when the individual
cylinders fuel inlet port is closed upon the completion of the combustion
portion of the 4 cycle combustion process and as a side benefit and the
fuel is is heated by the engines high temperature created during the
combustion process which reduces gellng at lower temperatures.
5. The engine timing is the same no matter what or it will not work
effectively as diesel fuel must be compressed and then explode to provide
the down force to propel the other cylinders in the drive train or a single
cylinder. The crank lobes are machined and balanced according to the
engine design and number of cylinders which requires the PROPER position
of the cylinder piston per revolution just like a gas engine BUT as Gasline
is combustable it burns much more easily which is what a diesel fueled
engine is unable to do with gasoline to run effectively at a 100 percent
volume of gasoline and diesel fuel cannot be used for fuel in a gasoline
engine because of the diesel fuels actual combustion requirements.
a. A reduced amount of fuel(even a minor reduction) delivered per rotation of
the injection pump will not allow the engine to operate at full power PER
CYLINDER no matter the throttle setting does not allow the entire drive
train to propel the crank shaft to provide full power per revolution.
b. The timing is the same and unchanged BUT the power delivery is what is
affected which creates the excess vibration within the power unit as the
drive train is not allowed to deliver full power per cylinder WHICH reduces
the speed of the cylinder ever so slightly due to the use of diesel fuel and
its required compression and explosion to create energy.
think of your engine as a spring driven clock the less spring tension you have
delivers that much less energy -fuel to power the clock which becomes slower.
I want everyone to succeed and not fail.
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jeepfreak1972
Bronze Member
The timing was off 8 degrees on my new 3200. Correcting this reduced the vibration. Not eliminated it but its now at a level that is not, in any way, an issue. The biggest change was the way it starts. No missing, sputtering and belching white smoke on start up. Even when its 10 degrees outside. Glow it for 5 seconds or so and it snaps to life instantly. Well worth looking at if you have a 3200 that acts like it has a "cold cylinder." No more missing until warmed up. Now I'm a happy camper.
leonz
Super Member
It figures;
It would never have left the factory in Japan if it was
like that to begin with.
I would love compare engines used in the Japanese
homeland tractors versus the ones mounted here as
far as operation/vibration goes.:thumbsup:
It would never have left the factory in Japan if it was
like that to begin with.
I would love compare engines used in the Japanese
homeland tractors versus the ones mounted here as
far as operation/vibration goes.:thumbsup:
jeepfreak1972
Bronze Member
I wonder if they "dumb them down", so to speak, to make a higher horse engine have less power so they can use them in more than one tractor to save on production cost. For instance, before buying the 3200 I drove the 3300 SUT. Same engine as the 3200 but 33 horse instead of 32. No big cloud of smoke at start up and no missing and sputtering. I don't recall the vibration being bad either. They did not have a 3200 in stock at the time for me to drive. I purchased the 3200 without a test drive because they told me it was the same tractor besides the 1 less horsepower, the mid PTO, which was the deal breaker for me, and cruise. I wanted the mid PTO for a future snow blower. If I did not plan on running a blower I would have gotten the 3300 SUT. The only other thing different on the 3300 is the tires. It comes with huge R-4's that require a step that has been added under the operator platform to aid in mounting / dismounting. I scoured both the 3200 and 3300 specs and these things mentioned above are the only differences I could find.
Steve
Steve