What are the symptoms of excessive valve clearance?
1 Answers
Excessive valve clearance can lead to the following adverse reactions: Valve noise: The most common symptom of excessive valve clearance is abnormal noise, primarily caused by the collision between the rocker arm and the valve. Timely adjustment is necessary in such cases. Reduced power: The main reason for power loss due to excessive valve clearance is the decrease in intake and exhaust volumes. This occurs because the valve opening becomes smaller, subsequently affecting the engine's intake and exhaust efficiency. Accidental damage: If excessive valve clearance is not adjusted promptly, in the case of pushrod engines, there is a risk of pushrod detachment. This happens because the pushrod relies on the upper and lower rocker arms for positioning. Excessive clearance can cause the pushrod to shift, leading to detachment.