In the event that you are alert of irregular signs on your vehicle, you are right to be worried, 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 Renault Twingo 3? You almost certainly figured it out thanks to black/oily drips along your engine motor, or a troubled idle, or abnormal black smoke. These three manifestations are the main symptoms of a leaking injector. As this problem can bring on more critical engine problems on your car, we chose to publish this article content to help you ensure the failure of a leaking injector and deal with it correctly. To do this, we will first look at the case of gasoline injectors and then at those of diesel injectors Renault Twingo 3.
Leaking injector on my petrol Renault Twingo 3
It is crucial to know that the injectors on petrol and diesel engines are distinct, in reality, the difference in combustion between these two sort 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 Renault Twingo 3: The different leaks
It should be noted that injector leaks on a Renault Twingo 3 equipped with a petrol engine are rather infrequent. This is due to the much lower pressure in the petrol intake systems. Even so, there are two sort 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 portion that is connected 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 come from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel Renault Twingo 3
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system creates 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 Renault Twingo 3: The different leaks
In the case of leaking diesel injectors on your Renault Twingo 3, there are three several sort of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform after a while, generally 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 Renault Twingo 3 will be brought on by 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 find an air noise and a compression loss. - If after verifying you have oil leaking but it does not come from your injectors, we suggest you to read this article content on the presence of oil leaking on your Renault Twingo 3.
Leaking injector on my Renault Twingo 3, how to fix the leak
And at last, we’re going to look at how to fix a leaking injector on your car. Oftentimes a leak is connected, as we have seen previously, to a worn seal caused by the pressures suffered. But think that the pressure in the circuit is tremendous, especially on diesel engines. So you will have to take some safety measures:
- Lower the pressure before any work is completed…
- Covering 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 limited to changing 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 smallest doubt in the treatment of your injector that leaks on your Renault Twingo 3, we suggest you to get closer to your auto technician to avoid any bad handling that could critically harm the condition of your Renault Twingo 3.
If you need more tutorials on the Renault Twingo 3, go to our Renault Twingo 3 category.
