In the event you are aware of abnormal symptoms on your car, you are right to be concerned, because a car represents a massive annual budget and unexpected breakdowns don’t reduce the costs. So what if you think that you have a leaking injector on your Mitsubishi Pajero 3? You likely figured it out thanks to black/oily drips along your engine motor, or a disturbed idle, or unusual black smoke. These three manifestations are the main symptoms of a leaking injector. As this troubles can end up in more critical engine complications on your car, we made a decision to write this article to help you ensure the failure of a leaking injector and treat it properly. To do this, we will initially look at the circumstance of gasoline injectors and then at those of diesel injectors Mitsubishi Pajero 3.
Leaking injector on my petrol Mitsubishi Pajero 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 types 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 Mitsubishi Pajero 3: The different leaks
It should be said that injector leaks on a Mitsubishi Pajero 3 equipped with a petrol engine are pretty rare. This is caused by the much lower pressure in the petrol intake systems. Nevertheless, there are two types 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 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 experience 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 sooner.
Leaking injector on my diesel Mitsubishi Pajero 3
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 Mitsubishi Pajero 3: The different leaks
In the circumstance of leaking diesel injectors on your Mitsubishi Pajero 3, there are three several types of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform over time, generally the leak will be at the clamping point. - Injector return leakage:
As its name implies, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Mitsubishi Pajero 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 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 consult this article on the presence of oil leaking on your Mitsubishi Pajero 3.
Leaking injector on my Mitsubishi Pajero 3, how to fix the leak
And at last, we’re going to look at how to fix a leaking injector on your car. Very often a leak is associated, 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 gigantic, especially on diesel engines. So you will have to take some safety measures:
- Lower the pressure before any work is achieved…
- 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 replacing the seals that have failed:
- Discover the source of the leak
- Take apart 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 cases, these interventions are not specifically difficult, but if you have the tiniest hesitation in the treatment of your injector that leaks on your Mitsubishi Pajero 3, we encourage you to get closer to your mechanic to avoid any bad handling that could severely harm the condition of your Mitsubishi Pajero 3.
If you have any additional questions about the Mitsubishi Pajero 3, do not hesitate to consult our Mitsubishi Pajero 3 category.
