What Are the Effects of Excessive Carbon Deposits in Cars?
1 Answers
Here are the effects of excessive carbon deposits in cars: 1. Poor acceleration. Carbon deposits reduce the intake channel and lower the charging coefficient, leading to increased cylinder pressure and delayed ignition timing, resulting in decreased engine power. 2. Difficulty in starting the vehicle. Carbon deposits falling into the intake valve seat channel can cause insufficient cylinder pressure. The fuel injected during startup is absorbed by the carbon deposits, leading to a lean mixture in the cylinder and preventing the engine from starting normally. 3. Unstable engine idle. When carbon deposits adhere to the intake valve and throttle valve, the engine cannot accurately control the amount of gasoline and air sent to the combustion chamber, causing unstable engine speed. 4. Increased fuel consumption. When carbon deposits accumulate in the combustion chamber, they can easily cause knocking, leading to delayed ignition timing, decreased power, and a 4~5% increase in fuel consumption. 5. Excessive exhaust emissions. Carbon deposits disrupt the gasoline-air mixture ratio, causing incomplete combustion of gasoline, increasing CO and HC content in the exhaust, and failing to meet emission standards. 6. Engine failure. When carbon deposits adhere to the intake valve stem, they can cause the valve stem and guide to stick, leading to piston impact on the valve, abnormal engine noise, and damage to the intake valve and piston.
