If you are aware of irregular symptoms on your automobile, you are right to be preoccupied, because a car represents a huge annual budget and unexpected breakdowns don’t reduce the expenses. So what if you feel as if you have a leaking injector on your Nissan Patrol 3? You almost certainly figured it out thanks to black/oily drips along your engine motor, or a troubled idle, or unconventional black smoke. These three signs of illness are the main signs of a leaking injector. As this failure can bring about more significant engine complications on your car, we thought we would publish this article content to help you confirm the failure of a leaking injector and treat it correctly. To achieve this, we will first of all take a look at the case of gasoline injectors and then at those of diesel injectors Nissan Patrol 3.
Leaking injector on my petrol Nissan Patrol 3
It is crucial to know that the injectors on petrol and diesel engines are distinct, in fact, 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 Nissan Patrol 3: The different leaks
It should be mentioned that injector leaks on a Nissan Patrol 3 equipped with a petrol engine are rather rare. This is due to 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 possible that you have a leak from the top of the injector, this is the component that is linked 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 appear from the junction with the engine and not with the rail as seen before.
Leaking injector on my diesel Nissan Patrol 3
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 Nissan Patrol 3: The different leaks
In the case of leaking diesel injectors on your Nissan Patrol 3, there are three different sort of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform with time, in most cases 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 Nissan Patrol 3 will be caused 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 experience 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 read this article content on the existence of oil leaking on your Nissan Patrol 3.
Leaking injector on my Nissan Patrol 3, 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. Very often a leak is connected, as we have seen prior to this, to a worn seal as a result of the pressures endured. 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 completed…
- Covering 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 regularly be limited to replacing the seals that have failed:
- Identify 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 accordance with the manufacturer’s standards.
In all situations, these interventions are not necessarily complex, but if you have the smallest uncertainty in the treatment of your injector that leaks on your Nissan Patrol 3, we suggest you to get closer to your auto mechanic to avoid any bad manipulation that could significantly harm the condition of your Nissan Patrol 3.
Whenever you have any further questions about the Nissan Patrol 3, do not hesitate to consult our Nissan Patrol 3 category.
