What are the symptoms of advanced or retarded ignition timing?
1 Answers
Advanced ignition timing can cause engine vibration and kickback during startup, and in severe cases may even lead to engine reverse rotation. Retarded ignition timing results in sluggish engine performance, lack of power, and even overheating. When suddenly opening the throttle, the engine speed fails to increase accordingly while fuel consumption rises. Below are relevant explanations: 1. A well-designed ignition system features automatic advance angle and anti-knock functions, automatically adjusting ignition timing according to engine speed changes while effectively suppressing knocking caused by rapid acceleration at low speeds in high gears, thus protecting the engine. 2. For fixed-angle ignition engines, both excessively advanced and retarded ignition timing negatively impact engine performance, but adjustments can be made based on actual needs: For urban short-distance low-speed driving, appropriately selecting a larger advance angle improves fuel economy, while for long-distance high-speed driving, a slightly smaller advance should be chosen. In fact, properly reducing advance angle can achieve maximum vehicle speed. 3. Overly advanced ignition timing adversely affects the entire engine system, with most noticeable impacts including: increased piston slap, severe connecting rod bearing impacts, loud engine noise, and high temperatures. Overly retarded ignition timing mainly causes slow power response without significant hardware damage to the engine.
