Oil & Fuel Fuel problems with BX2200

[jruss]

I have a 2003 BX2200 with 680 hrs on it. I am experiencing a loss of power after app. 20 mins. of operation. I have replaced the fuel filters with no change in problem. I tested the fuel pressure after the second fuel filter and got app. 2 lbs of pressure both static and running. Suspect the fuel pump.

Need specs on fuel pump pressure to verifiy problem. Would appreciate any input ya'll can give.

Thanks, John

 

[Volfandt]

In the BX23 WSM, there is no mention of what the output psi of the electric fuel pump is. Basically all it indicates for checking it is to make sure it's got battery voltage to it with the key switch on and if you disconnect it and do a continuity check on the pump, it should read a very high continuity, almost a short. So if it pumps we must assume it's good.
Assuming the electric fuel pump is sufficient to get the fuel through the filters and into the injector pump where it's REALLY pressureized, I would suspect that you may have an obstruction in the fuel tank that could be partically blocking the output. With the fuel cap off, disconnect the fuel line before the 1st filter and use pressureized air to blow back into the tank. Some have reported hearing debris splashing when it clears.
If the problem still occurs then unfortunately you may have gotten ahold of some bad or contaminated fuel so the next step should be to drain it and refill with known good fuel.
Besides the filters, contaminated fuel and/or an obstructed fuel tank are the biggest causes of your problem. Don't go too deep until you've gotten all the easy cheap fixes done 1st.
Good luck

 

[jruss]

Volfant, I found my problem, not just bad diesel, but 50% gasoline. Apparently the station that I purchased from must have had gasoline put in their diesel tank. How much I don't know but I will talk to them tomorrow.

Thanks for the input, John

 

[rdsaustintx]

Why would it lose power in 20 minutes??

<scratchin head>

 

[ultrarunner]

Why would it lose power in 20 minutes??

<scratchin head>

The engine was starting to seize... at least that's what happened to one BX I've seen...

 

[638]

If that engine was starting to lose power and seize up, the cylinders are probabley scored. Time for a rebuild or replacement. Hold that station's feet to the fire, they owe you big time.

ron

 

[rdsaustintx]

If that engine was starting to lose power and seize up

 

[jruss]

Have cleaned out the tank. etc. and put good diesel in. Ran tractor for about 45 min. last night and currently all seems well.
Have also contacted Racetrac about problem and will advise as to outcome.

 

[dannydan3]

Scary. Having had multiple fuel problems on my 2200, I always get my fuel from the place where all the area farmers buy it, and use my Mr. Funnel.
I don't think Mr. Funnel could filter out the gas from the diesel, though.

Hope your tractor is OK.

 

[dannydan3]

I'd bet that the gas station won't do anything even after being told that there is gas in the diesel.
To better protect yourself, I would notify them in a registered letter, then get some more fuel and test that afterwards.
My money's on them doing nothing, and denying any damage done to your tractor.

 

[BotaBigot]

Why would it lose power in 20 minutes??

<scratchin head>

Probably takes about that long to get good and hot from the pre-ignition/higher cylinder pressure caused by the gasoline...

 

[WTA]

How did you find out they had gasoline in their tank? If you have proof and take them to court I can't see where they would have a leg to stand on. Their direct negligence damaged your engine. I'm no lawyer but it sounds pretty cut and dried to me.

 

[jruss]

I had gone thru changing the fuel filters, blowing back thru the line to the tank then after talking to a Kubota shop manager, changing the fuel pump. None of these helped. I then decided to drain the tank (suspecting contaminated fuel) and refilled from my neighbor's fuel can and amazingly the BX started to run better. After refilling the tank out of his can I popped the lid on my second can of fuel and could immedeately smell the gasoline in the fuel.

Ran BX pulling the same disk for 45 min. with no problems and today I cut 3 acres of grass, again with no problem.

Also my neighbor smelled the gas in both of the cans.

I suspect that as the gas hits the injector pump and is heated ( after running the tractor for a while), that the gas may tend to vapor lock the injector pump. Another explanation may be that diesel, being a heavier liquid than gas tends to separate when sitting and the tractor when restarted gets almost pure diesel until run for a while. I don't know-just guessing.

You may ask why I did not smell the gas when working on the BX, I had app 3 gal. of diesel in the tank and just topped up the tank with the diesel/gas mixture.