Whenever you are alert of abnormal signs on your automobile, you are right to be preoccupied, because a car represents a massive annual budget and unpredicted breakdowns don’t lower the bill. So what if you feel like you have a leaking injector on your Nissan Note? You almost certainly figured it out thanks to black/oily drips along your engine, or a disturbed idle, or unconventional black smoke. These three signs of illness are the main indicators of a leaking injector. As this problem can lead to more significant engine concerns on your car, we chose to write this content page to help you confirm the failure of a leaking injector and handle it properly. To accomplish this, we will initially check out the circumstance of gasoline injectors and then at those of diesel injectors Nissan Note.
Leaking injector on my petrol Nissan Note
It is fundamental to know that the injectors on petrol and diesel engines are different, the reality is, 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 Nissan Note: The different leaks
It should be noted that injector leaks on a Nissan Note equipped with a petrol engine are rather infrequent. This is because of 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 plausible 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:
At last, you may encounter 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 sooner.
Leaking injector on my diesel Nissan Note
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system generates 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 Note: The different leaks
In the circumstance of leaking diesel injectors on your Nissan Note, there are three several sort of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform in the long run, 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 Nissan Note 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 troublesome, 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 examining you have oil leaking but it does not come from your injectors, we suggest you to consult this content page on the presence of oil leaking on your Nissan Note.
Leaking injector on my Nissan Note, how to fix the leak
And to finish, we’re going to check out how to fix a leaking injector on your car. Oftentimes a leak is linked, as we have seen sooner, to a worn seal as a result of the pressures endured. But think that the pressure in the circuit is tremendous, especially on diesel engines. So you will have to take some measures:
- 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.
Regarding the repair part of your leak, it will frequently be restricted to swapping the seals that have failed:
- Find 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 accordance with the manufacturer’s standards.
In all cases, these interventions are not necessarily complicated, but if you have the slightest hesitation in the treatment of your injector that leaks on your Nissan Note, we suggest you to get closer to your auto technician to avoid any bad manipulation that could severely harm the condition of your Nissan Note.
Whenever you have any further questions about the Nissan Note, do not hesitate to consult our Nissan Note category.
