bx2200 runs rough when it gets hot

[firebird93]

i have a bx 2200 that runs smooth when the engine is cool but when it gets warmed up it runs rough. it seems like it is missing on one cylinder. any suggestions!

 

[firebird93]

no one??

 

[bp fick]

Check the air filter. Number one. Must be spotlessly clean. Inner and outer, if so equipped.
Check both fuel filters.

Start there, for sure.

I know it isn't a normal thing, but when diesel is polluted with a percentage of gasoline, this also happens. Be sure someone didn't make a boo boo and put some gas in it.

 

[wildcatblue]

What do you mean by "HOT", are you saying normal operating temp or is it getting hot...

 

[JPRambo]

I have a old, old, old kubota 7100 and it has been good since I bought it very used last year. I don't know that much about deisel engines. But I have a feeling this is fuel and air related. As in too much fuel not enough air. Does it have a chock on? Is the air filter clean? Is the fuel clean? Drain some fuel from the bowl and see if any water in it.

 

[firebird93]

all new filters everywhere tank flushed and cleaned. fresh fuel, valve clearances checked ok. compression check ok. replaced one injector that was leaking still the same. runs nice and smooth when it is cold but seems to miss when it get up to operating temp! not only canyou feel it but you can hear it in the exhaust sound

 

[firebird93]

normal operating temp

 

[TripleR]

Some have reported trash in the pickup, did you blow air back through the line into the tank? Other than that, I am lost, our 2200 did that, but cleared up with the addition of HEET in yellow bottle and diesel additive, but you have checked your fuel.

 

[kuboman]

Dirty air filters will not make it miss. A weak injector can though. As it warms up so does the diesel and it also thins out some. You can have a weak injector or delivery valve.

 

[art]

Many engines run hot because they are missing!!!! I'd get a second opinion on the injectors.