2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42
Every car maintenance is not just a replacement of consumables and troubleshooting. This is also a diagnostic that allows you to avoid breakdowns, since most of them can be prevented even at the stage of occurrence. No fault appears on its own. This phrase refers to the entire car, especially its powertrain, which consists of a gearbox and an engine. The latter is a complex "organism", whose "organs" work in harmony and understanding with each other or do not work at all, there is no third way.
Over time, the engine exhausts its resource, becomes not so powerful and economical. For some, this resource is several tens of thousands of kilometers, for others it exceeds a million. But age is not the only factor that affects engine performance. Perhaps its adjustment is simply broken, which means that the "organs" work, but incorrectly.
The sure way is to inspect the spark plugs. A black candle can tell a lot to the right owner. First of all, you need to check why the candles are black. To do this, you need to try to erase the black coating onelectrodes and see how tight it sits. If this can be done with a finger, then a black candle is not too scary. Here, everything can be limited to adjusting the carburetor or replacing the electronic control unit. It must be said right away that the combustible mixture entering the cylinders is too enriched with gasoline. As a rule, in this case, clubs of black smoke can be observed behind the car, especially when the engine is under load. In this case, it is worth going to a service station and adjusting the fuel system in accordance with toxicity standards, this will be the surest way to fix this problem.
Another unpleasant situation that the black candle speaks of is the wear of the piston rings. In this case, the oil, which serves to lubricate the cylinder walls, passes under the oil scraper rings, after which it rises into the combustion chamber. Here it is coked on the electrodes. Black spark plugs should make you think about valve stem seals as well. Naturally, all engine parts have approximately the same resource, after which they need to be changed all together. So, rings and caps are just such details. In order to make sure of the correct diagnosis, you need, again, to turn to the exhaust pipe, the blue smoke from which indicates exactly this. Naturally, it will not be dark blue, but slightly bluish.
It happens that a black candle indicates a late ignition, since at the moment the piston is at top dead center it does not occur,therefore, part of the fuel remains on the electrodes. The combustion temperature in this case is significantly reduced.
In conclusion, it is worth saying that a black candle may be the result of low-quality fuel. In this case, you just need to change the gas station. Naturally, you should not rush to extremes, you must first determine the nature of the malfunction, because for different models and brands of a car, the repair price varies, and within huge limits, which are simply impossible to limit.
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