In cases where you are aware of irregular symptoms on your car, you are right to be concerned, because a car represents a big annual budget and sudden breakdowns don’t lower the bill. So what if you sense that you have a leaking injector on your Dacia Duster? You probably figured it out thanks to black/oily drips along your engine, or a troubled idle, or unusual black smoke. These three signs of illness are the main signals of a leaking injector. As this problem can produce more severe engine trouble on your car, we made a decision to prepare this article to help you validate the failure of a leaking injector and deal with it properly. To achieve this, we will first check out the circumstance of gasoline injectors and then at those of diesel injectors Dacia Duster.
Leaking injector on my petrol Dacia Duster
It is fundamental to know that the injectors on petrol and diesel engines are distinct, in fact, the difference in combustion between these two kind of engines makes the injection distinct. The main 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 Dacia Duster: The different leaks
It should be mentioned that injector leaks on a Dacia Duster equipped with a petrol engine are pretty infrequent. This is due to the much lower pressure in the petrol intake systems. However, there are two kind of leaks:
- Leakage from the top of the injector:
It is conceivable 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:
Finally, you may encounter a leak coming from the lower part of the injector of your car, this one will occur from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel Dacia Duster
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 Dacia Duster: The different leaks
In the circumstance of leaking diesel injectors on your Dacia Duster, there are three several kind of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform as time passes, usually the leak will be at the clamping point. - Injector return leakage:
As its name reveals, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Dacia Duster 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 troublesome, 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 verifying you have oil leaking but it does not come from your injectors, we encourage you to browse this article on the existence of oil leaking on your Dacia Duster.
Leaking injector on my Dacia Duster, how to fix the leak
And at last, we’re going to check out how to fix a leaking injector on your car. Regularly a leak is associated, as we have seen previously, to a worn seal caused by the pressures endured. But think that the pressure in the circuit is monumental, specifically on diesel engines. So you will have to take some precautions:
- Lower the pressure before any work is achieved…
- 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
- Change the corresponding seal kit
- Reassemble the assembly and tighten with a torque wrench in respect with the manufacturer’s standards.
In all situations, these interventions are not automatically complicated, but if you have the tiniest uncertainty in the treatment of your injector that leaks on your Dacia Duster, we encourage you to get closer to your mechanic to avoid any bad handling that could seriously harm the condition of your Dacia Duster.
If you wish more tutorials on the Dacia Duster, go to our Dacia Duster category.
