What are the effects of excessive or insufficient ignition advance angle on the engine?
4 Answers
The effects of excessive or insufficient ignition advance angle on the engine are as follows: 1. Excessive ignition advance angle: The combustible mixture is ignited too early, and the expansion pressure generated by gas combustion will hinder the upward movement of the piston, resulting in reduced engine power, increased fuel consumption, poor idle speed, and sometimes even causing the crankshaft to reverse or break. 2. Insufficient ignition advance angle: It also leads to a decrease in engine power and an increase in fuel consumption. Because the combustion of the mixture is delayed until the working volume of the cylinder rapidly increases, the maximum pressure generated by the combustion gas is weakened, the thermal energy of combustion cannot be fully utilized, more heat is transferred to the cooling water, and the engine will overheat. As a result, phenomena such as backfiring in the exhaust pipe and backfire in the engine intake port often occur.
Having driven for decades, I've found improper ignition timing settings to be truly troublesome. If set too advanced, the spark occurs too early, causing premature fuel ignition during compression that leads to severe engine knocking. This subjects pistons and cylinder walls to impact wear, significantly reducing engine lifespan over time. If set too retarded, the delayed spark results in incomplete combustion, making the vehicle struggle on inclines while dramatically increasing fuel consumption and wasting money. My old car exhibited these exact symptoms due to misadjusted parameters, which a mechanic later diagnosed. In summary, improper ignition timing not only affects driving smoothness but may also cause detonation failures. I recommend regular engine setting inspections as preventive maintenance. With today's expensive vehicles, it's unwise to risk major issues by skimping on minor maintenance costs.
As a car enthusiast, I feel that incorrect ignition timing (either too advanced or too retarded) directly impacts engine performance. When it's too advanced, excessive combustion pressure causes knocking sounds ("pinging"), which not only damages piston rings but also increases fuel consumption. If too retarded, acceleration becomes sluggish with hesitation, and throttle response turns lazy. I once attempted DIY adjustments but misfired and burned a spark plug due to improper calibration. The key is ensuring ignition timing aligns with the compression stroke—otherwise, engine efficiency plummets. If you notice abnormal noises or weak acceleration during daily driving, get it inspected promptly to save hassle and costs. Oh, and detonation issues may trigger the check engine light—never ignore these details to avoid total engine failure.
Ignition timing issues can significantly impact the engine. Excessive advance may cause knocking, damaging internal components; insufficient advance leads to incomplete combustion and increased fuel consumption. I recommend first inspecting the ignition system—proper adjustment makes the car run much smoother. With proper maintenance, the engine's lifespan will be extended.
