Yanmar diesel white smoke

Is white smoke a bad thing? 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. There are usually common types of smoke emitted from a diesel engine. Basically, smoke from a diesel engine indicates that something is not right. Smoke should be taken as an indication that there is a problem existing (or developing) that will potentially shorten the engine life, or result in unnecessary costs.

This is a case where you’ll probably want to call in the diesel pros, but here’s a diagnostic tip: While the engine is smoking , hold your hand over the exhaust outlet for seconds or so. Persistent blue smoke means your engine needs a professional overhaul. Crankcase overfill Take care not to fill your engine oil past the high mark on the dipstick. Excess oil could leak into the combustion chamber.

White Smoke - Causes and Cures. The commonest reasons for this lie in the fuel system. They range from faulty fuel injectors to retarded fuel injectio n timing, or even low compression. This video should only be used as guidance and not as an absolute-guide. If you don’t know what you are doing.

Diesel Smoke tells YOU a Story. Usually, white smoke indicates that the diesel fuel is not burning correctly. Unburned diesel fuel will make its way through the exhaust completely unused. Be careful of white smoke as it will irritate your eyes and skin. Hi All My 3YMis getting through about 1. To be more specific, the white smoke you see is your diesel fuel, unburne or only partially burned.

This typically occurs due to the engine being too cool to burn the fuel, often resulting from low compression in one cylinder, problems with the fuel injection timing or a defective fuel injector. Adding a fuel cetane booster may temporarily alleviate-and identify-this problem. Tighten that line and move to the next. A good cylinder will increase the shake, you will know when it changes.

Blowing white smoke is a red flag for your diesel engine, yet we see this happen all the time to our customers. In many cases, white smoke emanating from the tailpipe (often at idle once the engine reached operating temperature) typically means a worn out injector. Continuous white smoke while driving is one of them.

But mostly, it is the incorrect injector timing in the cylinders. This is due to the fact that colder air, which is more dense than warm air, lowers temperatures in engine cylinders at the end of the compression stroke. This colder air leads to reduced combustion of the fuel that has been injected into cylinders. Our yanmar 4jh2te has started emitting white smoke. It appears with the smoke there is a small amount of fuel (or oil) creating a slick on the water.

There has always been some smoke on startup, but now the smoke continues. It is running smooth with no knocks or apparent skipping sounds, but the white smoke is concerning. I have confirmed this when trying to reignite a burn pile of coals, pouring deisel on it and getting nothing but thick white smoke as it evaporated off, smelling like deisel.

Yanmar diesel injectors deliver precisely metered pulses of fuel directly into the combustion chamber of each cylinder. Built to very tight tolerances, the injector pressurizes the fuel to 8to 0pounds per square inch (psi) during injection. High engine hours can wear the injector and reduce output pressure. This is usually the last color of smoke you want to see, particularly on gas cars.

If the smoke is thin, and goes away relatively quickly, than it is merely condensation. However, thicker, longer lasting smoke is a much larger headache. Your engine is more than likely burning coolant. All diesel engines are designed to. The white smoke is due to unburnt fuel caused by improper heating.

WHITE SMOKE occurs when raw diesel comes through the exhaust completely intact and unburned. Some causes of this include. Perkins has a wealth of knowledge about diesel engines amassed through years of research, development and testing of its own models.