In the event you are aware of irregular symptoms on your vehicle, you are right to be intrigued, because a car represents a big annual budget and sudden malfunctions don’t lower the costs. So what if you find that you have a leaking injector on your Mercury Milan? 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 symptoms are the main indicators of a leaking injector. As this problem can produce more severe engine concerns on your car, we thought we would produce this content page to help you ensure the failure of a leaking injector and deal with it properly. To achieve this, we will first of all look at the circumstance of gasoline injectors and then at those of diesel injectors Mercury Milan.
Leaking injector on my petrol Mercury Milan
It is crucial to know that the injectors on petrol and diesel engines are distinct, in fact, the difference in combustion between these two kind of engines makes the injection distinct. The essential 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 Mercury Milan: The different leaks
It should be known that injector leaks on a Mercury Milan equipped with a petrol engine are pretty infrequent. This is due to the much lower pressure in the petrol intake systems. Even so, there are two kind 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 portion 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 come from the junction with the engine and not with the rail as seen sooner.
Leaking injector on my diesel Mercury Milan
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure produces 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 Mercury Milan: The different leaks
In the circumstance of leaking diesel injectors on your Mercury Milan, there are three several kind of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform over time, usually the leak will be at the clamping point. - Injector return leakage:
As its name suggests, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Mercury Milan will be a consequence of an O-ring or its plastic tip that leaks. - Injector base leak:
This injection leak is one of the most annoying, 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 read this content page on the existence of oil leaking on your Mercury Milan.
Leaking injector on my Mercury Milan, how to fix the leak
And to finish, we’re going to look at how to fix a leaking injector on your car. Very often a leak is connected, as we have seen previously, to a worn seal because of the pressures suffered. But think that the pressure in the circuit is monumental, specifically on diesel engines. So you will have to take some precautions:
- Lower the pressure before any work is carried out…
- 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 very often be restricted to changing the seals that have failed:
- Find the source of the leak
- Dismantle the injector in question
- Change the corresponding seal kit
- Reassemble the assembly and tighten with a torque wrench in accordance with the manufacturer’s standards.
In all situations, these interventions are not inevitably very hard, but if you have the slightest hesitation in the treatment of your injector that leaks on your Mercury Milan, we suggest you to get closer to your auto mechanic to avoid any bad handling that could critically harm the condition of your Mercury Milan.
To get more tips on the Mercury Milan, take a look at the Mercury Milan category.
