Diesel-engined cars must be admittedly less environmentally friendly when compared to gasoline engines, Friend Garage. Especially in Indonesia, where the automotive market still applies the Euro 2 exhaust emission standard for this type of engine. Nevertheless, diesel cars still have their own fan base. The reason is, its character is much higher, especially in terms of torque.
Diesel engines that are known for being tough can also be less powerful. If this happens, the origin of the problem is between the fuel filter system, the distribution system, or the combustion chamber. There are five causes that make diesel engines less powerful. All of that happens especially in conventional diesel engines, not those with common rail technology.
1. Solar Filter
Dirty diesel filters, thereby reducing the flow rate and volume of fuel required. The engine finally lacks the fuel mixture and the power production from the runway is not optimal.
Dirty diesel filters also hinder the filtering process. In addition, these impurities can enter the injection pump, then cause problems with the injection pressure. Indications of a problematic diesel filter can be seen from the water separator indicator light that lights up for no apparent reason.
2. Solar Pressure Pump
The diesel pressure pump is located in the diesel filter or near the injection pump. The purpose of this component is to suck fuel from the tank. Underpowered diesel cars can be caused by the weakening of the diesel pressure pump, so that its distribution to the combustion chamber does not match the required amount.
Finally, the mixing of fuel with air is not ideal. The power produced by the machine is not optimal. You should suspect that the diesel pressure pump is weak if the engine is difficult to start in the morning.
3. Injection Pump
Injection pump, is a component that forwards fuel to each injector. When the pressure is reduced or even exceeds what it should be, the diesel engine will certainly have problems and lack power.
An easy sign of a problematic injection pump is thick black smoke coming out of the exhaust.
4. Injection Timing
Although rare, the value and position of the injection timing can change and become inaccurate, thus affecting the combustion process and power production. Injection timing itself is the moment when the injector opens the nozzle to spray fuel.
One indication of a problematic injection timing is a puff of black smoke from the exhaust.
5. Combustion Chamber Compression Pressure
The source of the last problem is the compression pressure of the engine combustion chamber which is too low, so that the car’s performance becomes sluggish. In fact, what is needed is quite high, which is about 30 kgm. In comparison, the compression required by a gasoline engine is only 10-11 kgm.
However, there are several advantages of diesel-engined cars over gasoline engines, namely efficiency in fuel consumption because diesel engines have greater heat efficiency. In addition, diesel engines are known to be more durable or durable, and the torque released by diesel engine cars is greater.
That’s the reason why several sole agent brands (ATPM) maintain the use of diesel engines as one of their productions. It’s just that, even though it is known to be tough, you still have to be diligent in doing regular maintenance so that the diesel engine remains durable and long lasting.
Here’s how to take care of the most suitable diesel engine for you to practice at home:
A. Warm up the car
If the car is going to be used, at least preheat the car engine for about 10 minutes. This is done so that the oil can circulate and lubricate the components in the engine.
B. Choice of Oil
As is known, there are many oils on the market, where in general engine oil functions as a coolant for engine temperature, cleaning and protecting engine components.
Use engine oil with specifications recommended by the manufacturer and replace engine oil according to the regular maintenance schedule in your vehicle’s manual or service book.
C. Quality fuel
Maintaining a diesel engine can also be done by using quality fuels, such as diesel that has a high Cetane Number (CN) or a lower sulfur content.
It is known, high sulfur content can damage the injector components and result in incomplete combustion. Conversely, low sulfur content will make exhaust emissions, fuel lines, diesel filters, and combustion chambers cleaner.
Subsidized diesel is the lowest type of fuel with CN 48 and sulfur 3,500 parts per million (ppm). Meanwhile, non-subsidized diesel has a CN 51 value and a minimum sulfur content of 1,200 ppm. And even better diesel fuel has a CN 53 value with a sulfur content below 300 ppm.
D. Change filters regularly
In addition to changing the fuel filter, diesel engine vehicles must also take care of the air filter. The combustion process in a perfect engine is influenced by the clean air factor. But in fact, dust or dirt that is very small in size is often carried away by the wind and enters through the pores of the air filter.
Dust and dirt that enter through the air filter can greatly affect the combustion process so that it is not perfect.
E. Periodic service
Like cars in general, do regular maintenance at the workshop. As much as possible do it in an official workshop. This is because the repair shop has expert mechanics who are able to handle various problems on cars, including diesel engines complete with various equipment needed.