If you are alert of unusual symptoms on your automobile, you are right to be preoccupied, because a car represents a big annual budget and sudden breakdowns don’t reduce the costs. So what if you sense that you have a leaking injector on your Lancia Ypsilon? You almost certainly figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or strange black smoke. These three symptoms are the main signs of a leaking injector. As this troubles can cause more significant engine problems on your car, we thought we would write this article content to help you validate the failure of a leaking injector and treat it correctly. To do this, we will first take a look at the circumstance of gasoline injectors and then at those of diesel injectors Lancia Ypsilon.
Leaking injector on my petrol Lancia Ypsilon
It is important to know that the injectors on petrol and diesel engines are distinct, the truth is, the difference in combustion between these two sort of engines makes the injection distinct. The main 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 Lancia Ypsilon: The different leaks
It should be said that injector leaks on a Lancia Ypsilon equipped with a petrol engine are pretty infrequent. This is caused by 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 connected to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
Finally, you may experience 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 sooner.
Leaking injector on my diesel Lancia Ypsilon
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure 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 Lancia Ypsilon: The different leaks
In the circumstance of leaking diesel injectors on your Lancia Ypsilon, there are three different sort of leaks:
- Leakage from the injector inlet:
In cases like this, 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 reveals, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Lancia Ypsilon will be caused by 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 suggest you to consult this article content on the presence of oil leaking on your Lancia Ypsilon.
Leaking injector on my Lancia Ypsilon, 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 connected, as we have seen previously, to a worn seal due to the pressures suffered. But think that the pressure in the circuit is enormous, especially on diesel engines. So you will have to take some precautions:
- Lower the pressure before any work is done…
- 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 restricted to replacing the seals that have failed:
- Locate the source of the leak
- Take apart the injector in question
- Replace the corresponding seal kit
- Reassemble the assembly and tighten with a torque wrench in respect with the manufacturer’s standards.
In all cases, these interventions are not automatically complicated, but if you have the tiniest uncertainty in the treatment of your injector that leaks on your Lancia Ypsilon, we suggest you to get closer to your repair shop to avoid any bad handling that could significantly harm the condition of your Lancia Ypsilon.
In the event that you have any additional questions about the Lancia Ypsilon, do not hesitate to consult our Lancia Ypsilon category.
