In cases where you are alert of irregular signs on your car, you are right to be worried, because a car represents a big annual budget and unforeseen malfunctions don’t reduce the bill. So what if you feel as if you have a leaking injector on your hyundai i20? You likely figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or uncommon black smoke. These three manifestations are the main signs of a leaking injector. As this problem can bring on more significant engine concerns on your car, we thought we would prepare this article to help you confirm the failure of a leaking injector and deal with it properly. To do this, we will initially take a look at the case of gasoline injectors and then at those of diesel injectors hyundai i20.
Leaking injector on my petrol hyundai i20
It is essential to know that the injectors on petrol and diesel engines are different, the reality is, the difference in combustion between these two sort of engines makes the injection different. The essential difference lies in the pressure undergone by the injectors, on a petrol engine it will vary between 3.5 bars for indirect injection and 120 bars for indirect injection.
Leaking injector on a petrol hyundai i20: The different leaks
It should be mentioned that injector leaks on a hyundai i20 equipped with a petrol engine are rather rare. This is resulting from the much lower pressure in the petrol intake systems. However, there are two sort of leaks:
- Leakage from the top of the injector:
It is plausible that you have a leak from the top of the injector, this is the component that is attached to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
At last, you may encounter a leak coming from the lower part of the injector of your car, this one will appear from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel hyundai i20
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system produces very high pressure in the engine, as do the injectors. On these models, the pressure is more than 10 times higher than on the direct injection of car petrol engines, reaching 1800 to 2000 bars.
Leaking injector on diesel hyundai i20: The different leaks
In the case of leaking diesel injectors on your hyundai i20, there are three several sort of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform over time, usually the leak will be at the clamping point. - Injector return leakage:
As its name indicates, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your hyundai i20 will be the result of an O-ring or its plastic tip that leaks. - Injector base leak:
This injection leak is one of the most bothersome, it is the junction between the engine and the injector nose that leaks at a copper seal, you should feel an air noise and a compression loss. - If after checking you have oil leaking but it does not come from your injectors, we suggest you to browse this article on the presence of oil leaking on your hyundai i20.
Leaking injector on my hyundai i20, how to fix the leak
And at last, we’re going to take a look at how to fix a leaking injector on your car. Very often a leak is connected, as we have seen previously, to a worn seal caused by the pressures endured. But think that the pressure in the circuit is tremendous, especially on diesel engines. So you will have to take some precautions:
- Lower the pressure before any work is carried out…
- Masking you to avoid the risk of fuel spillage
- NEVER work on a running diesel engine injector.
Relating to the repair part of your leak, it will very often be limited to swapping the seals that have failed:
- Discover the source of the leak
- Dismantle the injector in question
- Replace the corresponding seal kit
- Reassemble the set up and tighten with a torque wrench in respect with the manufacturer’s standards.
In all cases, these interventions are not automatically very hard, but if you have the smallest doubt in the treatment of your injector that leaks on your hyundai i20, we suggest you to get closer to your auto technician to avoid any bad manipulation that could significantly harm the condition of your hyundai i20.
If perhaps you have any additional questions about the hyundai i20, do not hesitate to consult our hyundai i20 category.
