What is the consequence of a combustion engine running for extended periods with light loads?

Prepare for the 2nd Class Power Engineering (2B1) Exam. Study with flashcards and multiple choice questions, each question offers hints and detailed explanations. Ensure you're ready for success!

When a combustion engine runs for extended periods under light loads, over lubrication of the cylinder can occur, leading to potential issues. In low load conditions, the engine may not reach its optimal operating temperature, which helps to vaporize the fuel more completely. As a result, unburnt fuel can mix with the engine oil, causing it to become diluted and reducing its lubrication properties. This condition can lead to an excessive buildup of oil in the combustion chamber.

Additionally, the unburned fuel may cause carbon deposits to form, which can lead to further lubrication challenges and negatively impact engine performance. Over time, these effects can result in increased wear on moving parts, reduced efficiency, and ultimately, engine damage. Therefore, running a combustion engine under light load conditions for extended periods can indeed result in over lubrication issues, justifying the selection of that answer in this scenario.

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