What are the reasons for a single-cylinder diesel engine emitting white smoke and failing to start?

1 Answers
DanielaRose
07/29/25 10:02pm
Single-cylinder diesel engine emitting white smoke and failing to start reasons are as follows: Engine temperature too low: Some diesel fuel turns into vapor without burning and is discharged with the exhaust gas from the exhaust pipe, emitting white smoke; Water in fuel supply: There is moisture in the fuel or combustion chamber, which is heated into steam by the heat released during combustion in the cylinder and discharged from the exhaust pipe, forming white smoke; Injection timing too late: Due to late injection timing, the cylinder temperature has already dropped when fuel is injected, causing some diesel fuel to turn into vapor without burning, emitting white smoke; Poor fuel injector atomization: Poor atomization leads to incomplete combustion of diesel fuel, which mixes with the high-temperature exhaust gas from normally operating cylinders in the exhaust pipe, resulting in white smoke; Cylinder pressure too low: Some diesel fuel turns into vapor without burning, thus emitting white smoke from the exhaust pipe.
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