I have my sons MG 231 Diesel tractor & need to put diesel in it but not sure which cap is for the diesel. I think the front cap if for water & the next one if for diesel? am I correct?

Make sure the air cleaner is clean. May need to make an adjustment to the air fuel mixture when it is warmed up, Make sure the choke is opening all the way.

Drain your system again, fill with plain water and a radiator flush agent such as STP, Gunk, or Prestone. Run the engine up to temperature to make certain the coolant passes through the engine thermostat. After the radiator is cool again, drains the water & refill with water/anti-freeze mix. If you try to skim off the diesel, it'll take you a very long time to get it all out, and you may possibly never get the smell of diesel out of your radiator.

Hi Angela:
Accidents happen. PITA!

- Diesel fuel will float on water, so if you have the ability to dip a chunk of spill kit absorbent into the top of the radiator, it should "wick" the majority of it off the surface.
- If there is a radiator overflow reservoir I would make sure that it is about 1/3 full. That way when it draws coolant back into the radiator it will not be getting any residual diesel. Once the engine has fully cooled and let stand overnight, there may be a small amount of diesel present when you remove the radiator cap. Use the absorbent wick to capture as much as possible.
- I would not personally worry about the bit of diesel that remains in the engine and radiator after you have done that.
Hope this helps.
Cheers.

[PDF]KUBOTA DIESEL ENGINE - Waterax

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engine maintenance. it is KUBOTA's policy to utilize as quickly as possible .... Be sure to close the coolant drain valve, secure the pressure cap. and fasten the .... Oil drain plug. (18) Oil ... around the machine. it may catch on moving (B) "OFF".

Kubota V2203 Block Water Drain? - Diesel Bombers

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Nov 21, 2013 - On my Kubota V2203 DI above the Oil filter is a long bolt of which the only thing ... I did not even know that Block Water Drain was there till last night I ...Also, the pipe plugs in the engine are a Japanese style, but we've ... Kubota v2203 vsv1902, ziegler, Diesel Engine Conversions, 4, 01-10-2015 06:27 PM.

Kubota Engine Service Tips

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If the reading is 11 volts or more while you are trying to crank the engine see the ...Other causes include defective glow plugs or low cranking speeds from a weak battery.... We have not seen it "ruin" anyone's tractor yet, so drain the tank, refill with ....passages between the cylinder head and the block became 90% blocked.

Kubota L2550 needs block heater! - Yesterday's Tractors

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Jan 25, 2011 - 25 posts - ‎14 authors

Oldmax, I could swear I was looking at a closeup of my engine, except for the colour.... V1702, V1703, V1902, V1903, V2003, V2003T, V2203 (4 cylinder) Part No. ... BSeries (Except 2 cylinder) Part No. Watt Volt Diameter Type .... Paul, does the tractor have a block drain plug, and a thermostat bypass ...

I'd bet your tank Cap seal is not good. Lots of rain? And or moisture is condensing inside the tank. Another thing to check is the fuel return line from the injection pump to the tank is properly sealed. Water in injection system is deadly especially to the pump. So find the problem soon. you may want to put "fuel dryer" (methanol) to remove any residual water. Oh, Did you stop along the way? Is the cap locked? Or lid locked. With that much water you may have had some vandalism. Any enemies?

the only thing I can figure is some one put a transistor kit in your distributor however you would still need the cap on and the rotor working. Don't think it would run with no spark to the plugs, with the exception of the old farmalls that ran on gas and then switched over to fuel oil, they ran on compression like a diesel !

well you need to drain all diesel fuel, install a new fuel pump and filter, clean injectors, get it running and go from there, fix any code the comes on, one think.... fuel tank or fuel cell called also a bladder may need to be replace if collapsed due to diesel caracteristics, the longer you wait the more damage, hope you did not drain EV battery down to zero charge, it takes an special charger only available at your dealer by request to Toyota head quarters

Got water in your fuel. Change your fuel filters.

I, feel sorry for you, after reading your problem, but don't worry you visit the Reliable-Store they will help you for sure.
Best Manuals

Hi!

No big deal:) easy to fix that problem! you engine isent damaged in any way.

Just remove the diesel from the tank, make sure all diesel is out.
Fill the tank up with the fuel it takes, restart it. It might take a moment for it to start, but it will start sooner or later,dont give up, it need to get all the diesel out from the tube and that can take a couple of minits.

Good luck
Nic