kubota fuel tank to small

Eyeshade · Jan 24, 2011

My car is the same way. I drive it all day long for 3 days and I have to fill it up. They should have put a 100 gallon tank in my car.

Chilly807 · Jan 25, 2011

The L3400 tanks are funnel shaped, the first movement takes forever, then it dives. As LD1 said, even on "E" you've got three or four gallons left. The alternative is a box shaped tank mounted somewhere besides under the hood where it has to share space.

As for the OP, he should have bought a larger tractor to get a 20 gallon tank. Or, work it less and you should be able to get 2-3 weeks out of a tank of fuel. Seems pretty simple to me.

Sean

bigbull338 · Jan 25, 2011

tractors are made to work everyday.but i cant get used to the small tank on it.but thats just me.but it sure is easy on fuel.i thought moving 1500lb bales would pull the fuel tank pretty hard but it hasnt.

Haywire · Jan 25, 2011

Strap a 30gal drum to the carryall with a switch operated 12vdc transfer pump piped to the fuel tank. When it gets low, flip the pump switch in the cab till the fuel gauge shows full. You just can't use the 3ph during that. It'll give ballast for a front mounted hay spear too.

CompactTractorFan · Jan 25, 2011

radioman said:
he got a point.

Yeah...:confused2:

ole farmerbuck · Jan 25, 2011

I have put 26 hours on my new M7040 moving dirt and blading. I filled it up today and it held a little over 14 gallons. Pretty easy on fuel compared to our big tractors. I was suprised at the consumption.

Tom_H · Jan 26, 2011

David s Von Gieserbrechta said:
...I to wish that it would have a larger tank but where would they have put it?

The most annoying thing is the way that Kubota has done the fuel gage thingy, I mean that after a full fill up it seems to use no fuel according to the gage, but when the needle just hits the full mark, well after that it dives like an attacking submarine. I do so wish that it would be more accurate.

David_Kb7uns said:
The problem that you are referring to is hard to fix because if you look at the BX fuel tank it is crammed under the seat with a low point for the pickup and the fuel sender on the left side where the tank drops down. The BX tank stores most of the fuel way above the senders range of travel. Well the fuel sender is going to be a linear device because of the windings but as the tank gets down to the area it worksin it gets small for the last few inches of depth.

I discovered the hard way that completely full is actually overfilled. The main tank on a BX has those "horns" that extend upward and backward to the left and right inside the fenders. If you fill the tank just to the place that the sender registers as full, well, that really is the full level if you want to use the tractor on an uphill slope. If you fill the tank as full as it will go on level ground, then take it onto an uphill slope, fuel will begin pouring from the overflow valve on the left horn of the tank, all over the left rear wheel. In order to work on a slope, it is necessary to fill the main part of the tank to the place where the sender says full, and not add enough fuel for it to rise into the horns. This gives the fuel somewhere to go without overspilling when the tractor is pointed uphill. Do it this way and you have an even shorter range (timewise). If you're going to stay on flat ground, it's not a problem-fill it into the horns.

David_Kb7uns · Jan 26, 2011

Tom_H said:
I discovered the hard way that completely full is actually overfilled. The main tank on a BX has those "horns" that extend upward and backward to the left and right inside the fenders. If you fill the tank just to the place that the sender registers as full, well, that really is the full level if you want to use the tractor on an uphill slope. If you fill the tank as full as it will go on level ground, then take it onto an uphill slope, fuel will begin pouring from the overflow valve on the left horn of the tank, all over the left rear wheel. In order to work on a slope (any significant slope needs to be uphill, not downhill or sideways), it is necessary to fill the main part of the tank to the place where the sender says full, and not add enough fuel for it to rise into the horns. This gives the fuel somewhere to go without overspilling when the tractor is pointed uphill. Do it this way and you have an even shorter range (timewise). If you're going to stay on flat ground, it's not a problem-fill it into the horns.

You should double check the connections for that, have not had that problem fill it to the top every time. There should be a ball valve on the bleader or a cap with a small hole in it. I know some of the early BXs had fuel tank leaking problems.

David Kb7uns

David s Von Gieserbrechta · Jan 26, 2011

Tom_H said:
I discovered the hard way that completely full is actually overfilled. The main tank on a BX has those "horns" that extend upward and backward to the left and right inside the fenders. If you fill the tank just to the place that the sender registers as full, well, that really is the full level if you want to use the tractor on an uphill slope. If you fill the tank as full as it will go on level ground, then take it onto an uphill slope, fuel will begin pouring from the overflow valve on the left horn of the tank, all over the left rear wheel. In order to work on a slope (any significant slope needs to be uphill, not downhill or sideways), it is necessary to fill the main part of the tank to the place where the sender says full, and not add enough fuel for it to rise into the horns. This gives the fuel somewhere to go without overspilling when the tractor is pointed uphill. Do it this way and you have an even shorter range (timewise). If you're going to stay on flat ground, it's not a problem-fill it into the horns.

Where I live we have what are referred to as loaded undie hills or holy crap whatta ride hills but have never had a problem with fuel running out of the tank and onto the wheel. I also load the fuel untill it stops bubbling, as a matter of fact I normally refuel on a bit of a portside slope to get in as much as I can and if I could jam in more by using a stick I would.

Like David_Kb7uns mentioned get the relief valve checked if your having this problem.