What Causes Blue Smoke During Cold Engine Start?
1 Answers
The reasons for blue smoke during cold engine start are: 1. The use of unqualified engine oil or failure to change the oil for an extended period: This leads to overly thin engine oil, resulting in incomplete combustion and the appearance of blue smoke. 2. Poor quality of the air-fuel mixture participating in combustion: Caused by aging or damaged air filters that have not been replaced. 3. Severe wear of the valve guides and valves during operation: This creates excessive clearance between them, allowing excessive oil from the rocker arm chamber to be sucked into the combustion chamber during the intake process, leading to the production of blue smoke. Here is some additional information: 1. Introduction and types: An engine is a machine capable of converting other forms of energy into mechanical energy, including internal combustion engines, external combustion engines, jet engines, electric motors, etc. For example, internal combustion engines typically convert chemical energy into mechanical energy. 2. Applications and history: Engines can refer to both power-generating devices and the entire machine including the power unit. The engine was first developed in the UK, so the concept of an engine also originates from English, with its original meaning referring to "a mechanical device that generates power."
