What Causes the Ticking Sound in the Baojun 530 Engine at Idle?

[VonCooper]

Baojun 530 engine ticking sound at idle can be attributed to the following reasons: Valve Noise: After starting the engine, a "ticking" sound is heard, which is the sound of the valves. Especially when the engine is cold, this noise occurs because the oil pressure has not yet built up, and the valves are not properly lubricated. The sound should diminish after a short period. Insufficient Lubrication: Generally, during a cold start, the engine sound is slightly louder than when the engine is warm, as long as the sound is uniform and smooth, not harsh. This noise is caused by the gap between the cylinder wall and the piston not yet reaching the optimal size during cold conditions, along with insufficient lubrication from the engine oil. Typically, when the engine block temperature reaches around 95 degrees, the sound will return to normal. Engine Oil Issues: Poor-quality engine oil, prolonged intervals without oil changes, or low oil levels can all lead to increased friction between the valves and guides, as well as hydraulic lifters, resulting in louder engine noises.