Symptoms of diesel engine valve oil seal fracture

Damage symptoms of diesel engine valve oil seal: 1, engine oil enters the cylinder along the valve guide rod, which causes the spark plug to accelerate carbon deposition and greasy, the working condition becomes worse or even does not work, and the engine power is reduced; 2, the valve tilt cylinder is not tightly sealed, the cylinder pressure drops, and the engine power is weakened; 3. Accelerated fuel consumption is likely to cause engine damage due to lack of oil during long-distance driving; 4. In addition, after the engine oil entering the cylinder participates in combustion, part of carbon deposits accumulate in the engine oil, which makes the engine lubrication condition worse and intensifies engine wear.