Check How To Maintain Your Fuel Injection System
Equipment failures can be expensive, and machine downtime can mean less work gets done. Here’s what you need to know about maintaining your fuel injection system.
How Fuel Injectors Work
An important part of knowing how to maintain your fuel injection system is understanding how it works. The function that diesel fuel injectors perform is they pressurize diesel fuel, and then pump it through a fixed or electronically controlled opening.
The fuel gets delivered to the engine as a spray, which makes it easier to be ignited than a heavy stream. Additionally, the spray can burn more evenly and efficiently.
It’s this process that becomes less effective when diesel fuel injection systems aren’t maintained properly. The issues that most commonly affect fuel injection systems include water or air in the system and clogged fuel injectors.
If you suspect these could be issues with your vehicle, before you check or address them, it’s important to always make sure you follow any necessary safety precautions to avoid injury. Here’s how to safely maintenance your vehicle.
Depressurizing Your Fuel Injection System
Diesel fuel undergoes high amounts of pressure whenever it’s operating. You need to let your engine completely cool and depressurize the fuel injection system before you begin performing any maintenance. The way you depressurize your fuel injection system is that, you have to first shut off the engine.
After you’ve shut it off, loosen the fuel filter cap without completely removing it. Be aware that you’ll hear a hissing sound when the cap is loosened. Locate the fittings on the fuel lines and loosen them.
Your owner’s manual should be able to direct you to where they are. Some vehicles place them in the engine compartment, while others mount them on the frame rail of the undercarriage.
After you’ve located the fittings, use a flare wrench and turn anticlockwise to loosen them. The pressure will take a few minutes to release.
During this time, you can clean the spills while waiting. If you’re planning of replacing the fuel filters, you need to remove the fuel lines. Then, if you intend to do other work, just leave the fuel lines loosened until you’re done with your maintenance.
How to Clean Clogged or Dirty Fuel Injectors
Diesel fuel holds more dirt than the gas. It’s very important to use all the measures you can to keep the fuel injection system and the fuel clean.
The consequence of a dirty or clogged system can mean the fuel will dribble out rather than spray out, which will potentially cause your engine to skip or stop completely.
The general signs of clogging include hard starting, throttle hesitation, rough idling, decreased fuel mileage, black smoke from the exhaust manifold, and pinging sounds. Three few ways to keep your fuel injection system clean; Firstly, you should remember to regularly change the oil. Secondly, you should replace the filters on a consistent basis as well. Then, lastly, you should consider using high-quality additives designed to protect the parts and keep them clean. The owner’s manual or manufacturer can recommend additives that would work best for your particular machine.
Once you’ve completed this maintenance work and put everything back together, turn the engine on and check for any leakages.
How to Get the Air Out of Your Fuel Injection System
Some people accidentally let fuel (diesel) runs out of their machine, which leads to hard starting. It happens because too much air gets into the system, which keeps fuel from adequately flowing and keeps fuel pumps from picking up and pushing diesel through the piping system. The way you bleed air out of your system is to first let it cool and depressurize.
Once cool and depressurized, you should put diesel fuel into your tank until it’s filled higher than the fuel filter.
After you’ve filled it that high, loosen the bolt that’s on top of the fuel filter can. This will enable the fuel to push the air up and out. After all of the air has been pushed out, tighten up the bolt.
When bleeding air from high-pressure fuel pumps, crank the engine without starting it to build pressure, and then use a wrench on the injector nut to turn and allow the air to hiss out. It’s necessary to do this on all of your injectors.
In general, the best way to prevent air from getting into your system is to not let your machine ever run out of fuel.
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