If you are aware of abnormal signs on your car, you are right to be preoccupied, because a car represents a big annual budget and sudden breakdowns don’t lower the bill. So what if you feel like you have a leaking injector on your Hyundai Bayon? You almost certainly figured it out thanks to black/oily drips along your engine motor, or a disturbed idle, or strange black smoke. These three symptoms are the main signs of a leaking injector. As this failure can produce more severe engine complications on your car, we decided to prepare this article to help you ensure the failure of a leaking injector and deal with it properly. To achieve this, we will first of all take a look at the case of gasoline injectors and then at those of diesel injectors Hyundai Bayon.
Leaking injector on my petrol Hyundai Bayon
It is essential to know that the injectors on petrol and diesel engines are different, in reality, the difference in combustion between these two sort of engines makes the injection different. The key difference lies in the pressure experienced 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 Bayon: The different leaks
It should be said that injector leaks on a Hyundai Bayon equipped with a petrol engine are rather rare. This is as a result of 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 part that is linked to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
At last, you may experience a leak coming from the lower portion 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 Bayon
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure 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 Bayon: The different leaks
In the case of leaking diesel injectors on your Hyundai Bayon, there are three several sort of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform after a while, commonly the leak will be at the clamping point. - Injector return leakage:
As its name indicates, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Hyundai Bayon will be caused by an O-ring or its plastic tip that leaks. - Injector base leak:
This injection leak is one of the most annoying, it is the junction between the engine and the injector nose that leaks at a copper seal, you should encounter 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 read this article on the existence of oil leaking on your Hyundai Bayon.
Leaking injector on my Hyundai Bayon, how to fix the leak
And to finish, we’re going to take a look at how to fix a leaking injector on your car. Regularly a leak is linked, as we have seen prior to this, to a worn seal as a result of the pressures endured. But think that the pressure in the circuit is tremendous, specifically on diesel engines. So you will have to take some precautions:
- Lower the pressure before any work is completed…
- Masking you to avoid the risk of fuel spillage
- NEVER work on a running diesel engine injector.
Concerning the repair part of your leak, it will regularly be restricted to swapping the seals that have failed:
- Find the source of the leak
- Dismantle the injector in question
- Change the corresponding seal kit
- Reassemble the assembly and tighten with a torque wrench in accordance with the manufacturer’s standards.
In all cases, these interventions are not inevitably very hard, but if you have the smallest hesitation in the treatment of your injector that leaks on your Hyundai Bayon, we suggest you to get closer to your auto mechanic to avoid any bad handling that could severely harm the condition of your Hyundai Bayon.
To discover more tips on the Hyundai Bayon, take a look at the Hyundai Bayon category.
