Kubota white smoke

Trying to narrow down causes of white smoke. RTV5with only hours started blowing white. Unfortunately, I did not realize the filter had not completely dried out and must have sucked some water through.

It blows white smoke and the engine knocks. Does it each time I start it now. Other things to note: - it does fire right up no cranking necessary. Re: kubota engine problems white smoke on start up Leaking injector is my pick. Simple check, run it shut it down for a length of time then pull the injectors and look for a wet cylinder, that will be the bad injector.

The Kubota diesel engine has such a simple and rugged setup that there are very few parts or functions that are likely to fail. It is acceptable for all but the most modern diesels to experience white smoke at startup. But this should disappear after the engine warms up. White smoke is low temp combustions smoke. Poor compression causes low heat, so white smoke.

When pulling, more fuel is injected so burns hotter plus, depending on what injection pump you have, the timing may get earlier. Diesel Smoke tells YOU a Story. I also repainted the hood and dash about a week ago.

Since this is a boat and marine diesel forum, an white smoke seems to come with the territory, I’ll first start by giving you about twenty years of personal experience with white smoke. If timing is late, burning takes place too late to burn completely so is cooler. A diesel can make white smoke from both sources. If it smells like fuel, it probably is. Most likely on urs it sounds like unburned fuel from inadequate compression.

Can also be improper atomization from injectors as u stated it was sitting around for a while. Products designed to flush carbon away from the pistons often cures this problem. If the white smoke is due to the engine being too cool, adding an automatic pre-heater may eliminate white diesel smoke. Either the intake valve, or the valve seat could be pitted.

The other possibility is that the head may be cracked clear through the intake valve hole. Hope you find a new head gasket for it. Black smoke almost always means too much fuel is being used. Condensation that accumulates inside the exhaust pipes, converter and mufflers can produce a puff of white smoke upon diesel engine start-up. In very cold temperatures, the heated exhaust can freeze into minute fuel droplets when exiting the exhaust and produce a more prolonged emission of white smoke for a very short period of driving time.

I am and I have an L2kubota. We got it overhauled last winter and it was not cheap. It now starts a bit better but pretty well the same it still blows white smoke. I work on a dairy farm and every deisel tractor the have there blows white smoke when you start them.

When this happens, find out how to bleed a Kubota diesel engine or get professional assistance. Fuel breaks down more quickly in humid conditions or hot-cold cycles. I have several Kubota engines in equipment rangings from 20hp to 67hp 50hrs to 350hrs of use. I have found that when running off-road (red-dye) high sulfer diesel fuel in my Kubota engines they tend to smoke upon start up and when I throttle them up.

Upon starting routine Amsoil diesel fuel additives the smokeing is limited now to cold start-ups. I call dealership pick two fuel filters, drain fuel, replace with fresh fuel, bleed the system and they also suggest running without the air filter for a little while. I have an older Bobcat 7that puffs a little white smoke for 2-seconds when it first starts. While black smoke is caused by the burning of more fuel than air, blue or white smoke is generally caused by the burning of excess oil. Often, the cause of this smoke is something simple that doesn’t need to be addressed.

Use of our Flushing Oil Concentrate and FTC Decarbonizer address these respective problems. Water entering combustion spaces will also create white smoke. I wondered about an oil leak into the engine, but the oil tank remains full.