Causes and Removal of White Smoke from Diesel Engines
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The exhaust of diesel engines emitting diesel vapor (white) and water vapor (pale white) are collectively referred to as white smoke. The causes and exclusion methods are as follows: 1. White smoke 1 diesel oil. Remedy: Exclude the water in the bottom of the fuel supply system, the diesel fuel filter, the fuel injection pump, etc. in the diesel supply system. Prevention: Diesel oil needs to be deposited for more than 24 hours before use. When refueling, do not insert oil into the bottom of the diesel drum. Damage to or loss of the fuel tank cap should be promptly matched. 2 The cooling water leaks out of the cylinder. The cylinder head gasket is poorly sealed or cracks at the bottom of the cylinder head, the cooling water in the water jacket leaks into the cylinder, and it will lead to steam and smoke. Need to find leaks and repair or replace the relevant parts. Prevention: First, the cylinder head bolts should be tightened to the specified value by the diagonal, and the second is to install the cylinder liner, the cylinder sleeve shoulder should be slightly higher than the cylinder surface, the third is to add cooling water in time to prevent the cylinder liner cracking . 2. White smoke 1 winter temperature is low. Due to the low temperature, some diesel fuels failed to catch fire and smoke. This white smoke disappears on its own as the engine temperature increases. It is normal and does not need to be eliminated. 2 poor diesel atomization. The reasons are: too low fuel injection pressure, serious oil dripping in the injector, or too low pressure in the injector, resulting in some diesel oil mist not burning in the combustion chamber and emitting white smoke. Should distinguish between the situation, or replace the pump plunger assembly, or adjust the injection pressure to normal, or remove the injector grinding repair needle valve parts, can not be repaired to be replaced.