Hy guys, i have a kubota wheel loader wich give me a little trouble and i don t know what is the problem.. It is a kubota r 410 with 4 cylinder engine, non turo (year 1993).The problem is taht under heavy pushing it gives i think grey smoke(or it s white but with black smoke from unburned diesel it became grey. The smoke have a little diesel smell.. The smoke coe just under heavy load or if i drove on a slopy road with second gear. The rest of thime, just say when i do backhoe job or running engine in neutral (when reving the engine it gives black smoke but just a leattle wich i think is normal). oil level does not drop\ or not drop noticeable, and the oil press is normal. one thing i notice is that when i unscrew the oil cap (when engine work) there are some ''air pressure" coming out.(i don t know how to name it...). so based from what i tell you what do you think is the problem?
Do you think that the valves seal are worn out? Or valves giudes ?
Or the piston rings?
Or maybe the injection system ? Injectord / injection pump? Thank you guys and sorry for mistakes i learn eanglish from movies.....:notworthy Please give you opinion, so i can figure it out... If you have questions for me i will answer as soon as i can because i am at scool.. Again thank you:).Have a nice day.
Do you think that the valves seal are worn out? Or valves giudes ?
Or the piston rings?
Or maybe the injection system ? Injectord / injection pump? Thank you guys and sorry for mistakes i learn eanglish from movies.....:notworthy Please give you opinion, so i can figure it out... If you have questions for me i will answer as soon as i can because i am at scool.. Again thank you:).Have a nice day.