If you are alert of irregular symptoms on your automobile, you are right to be worried, because a car represents a massive annual budget and unpredicted breakdowns don’t reduce the bill. So what if you feel as if you have a leaking injector on your Nissan Micra 2? You likely figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or strange black smoke. These three signs of illness are the main indicators of a leaking injector. As this troubles can produce more significant engine trouble on your car, we thought we would produce this content page to help you confirm the failure of a leaking injector and handle it properly. To do this, we will first look into the circumstance of gasoline injectors and then at those of diesel injectors Nissan Micra 2.
Leaking injector on my petrol Nissan Micra 2
It is important to know that the injectors on petrol and diesel engines are distinct, actually, 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 Nissan Micra 2: The different leaks
It should be known that injector leaks on a Nissan Micra 2 equipped with a petrol engine are pretty infrequent. 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 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 encounter a leak coming from the lower portion of the injector of your car, this one will occur from the junction with the engine and not with the rail as seen sooner.
Leaking injector on my diesel Nissan Micra 2
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 Nissan Micra 2: The different leaks
In the circumstance of leaking diesel injectors on your Nissan Micra 2, there are three different 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 Nissan Micra 2 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 encourage you to read this content page on the existence of oil leaking on your Nissan Micra 2.
Leaking injector on my Nissan Micra 2, how to fix the leak
And at last, we’re going to look into how to fix a leaking injector on your car. Oftentimes a leak is connected, as we have seen sooner, to a worn seal as a result of 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 oftentimes 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 inevitably difficult, but if you have the smallest doubt in the treatment of your injector that leaks on your Nissan Micra 2, we encourage you to get closer to your mechanic to avoid any bad manipulation that could critically harm the condition of your Nissan Micra 2.
If you need more guides on the Nissan Micra 2, go to our Nissan Micra 2 category.
