Analysis and Symptoms of Cylinder Air Leakage
2 Answers
Cylinder air leakage manifests as increased exhaust emissions, primarily caused by eccentric installation or damage to the piston rod. Below is an introduction to cylinder air leakage knowledge: 1. Several causes of air leakage: During operation, cylinders may encounter issues and malfunctions, with air leakage being a common problem. Typical causes include insufficient lubrication supply, poor cylinder lubrication, impurities between the piston rod and seals, or aging and damage within the seals themselves. 2. Definition of a cylinder: A cylindrical metal component that guides the piston in linear reciprocating motion within the cylinder. In engine cylinders, air expands to convert thermal energy into mechanical energy; in compressor cylinders, gas is compressed by the piston to increase pressure.
In my many years of repairing cars, common causes of cylinder leakage include worn or deformed piston rings, which are usually caused by deteriorated oil or high temperatures; valve seal failure, such as hardened seals or loose seat rings, leading to poor sealing; or scratches on the cylinder walls, often due to dust or improper maintenance. Symptom-wise, the car noticeably lacks power, struggles when climbing hills, and fuel consumption spikes alarmingly; during cold starts, the engine shakes violently with knocking-like noises; blue smoke from the exhaust indicates oil entering the combustion chamber; low compression test pressure directly reveals the issue. I recommend checking the engine condition every six months and using good-quality oil to reduce wear—letting small problems escalate into a major engine overhaul isn’t worth it.
