In the event that you are alert of irregular signs on your car, you are right to be worried, because a car represents a massive annual budget and sudden breakdowns don’t lower the expenses. So what if you feel as if you have a leaking injector on your Lincoln MKS? You likely figured it out thanks to black/oily drips along your engine motor, or a troubled idle, or unusual black smoke. These three manifestations are the main indicators of a leaking injector. As this failure can end up in more significant engine concerns on your car, we thought we would compose this article to help you ensure the failure of a leaking injector and handle it properly. To do this, we will first of all check out the case of gasoline injectors and then at those of diesel injectors Lincoln MKS.
Leaking injector on my petrol Lincoln MKS
It is vital to know that the injectors on petrol and diesel engines are different, the reality is, the difference in combustion between these two kind of engines makes the injection different. The key 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 Lincoln MKS: The different leaks
It should be mentioned that injector leaks on a Lincoln MKS equipped with a petrol engine are rather rare. This is because of 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 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 before.
Leaking injector on my diesel Lincoln MKS
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure 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 Lincoln MKS: The different leaks
In the case of leaking diesel injectors on your Lincoln MKS, there are three several kind of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform in the long run, usually 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 Lincoln MKS 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 checking you have oil leaking but it does not come from your injectors, we advise you to read this article on the existence of oil leaking on your Lincoln MKS.
Leaking injector on my Lincoln MKS, how to fix the leak
And finally, we’re going to check out how to fix a leaking injector on your car. Very often a leak is associated, as we have seen previously, 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 carried out…
- Masking 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 very often be restricted to replacing the seals that have failed:
- Find the source of the leak
- Dismantle the injector in question
- Change 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 necessarily very hard, but if you have the smallest hesitation in the treatment of your injector that leaks on your Lincoln MKS, we advise you to get closer to your auto mechanic to avoid any bad handling that could significantly harm the condition of your Lincoln MKS.
To find more tips on the Lincoln MKS, take a look at the Lincoln MKS category.
