In cases where you are alert of abnormal symptoms on your car, you are right to be concerned, because a car represents a big annual budget and unforeseen breakdowns don’t reduce the costs. So what if you feel as if you have a leaking injector on your Land Rover Discovery Sport? You most likely figured it out thanks to black/oily drips along your engine motor, or a disturbed idle, or strange black smoke. These three symptoms are the main indicators of a leaking injector. As this troubles can bring on more serious engine concerns on your car, we made a decision to write this article to help you ensure the failure of a leaking injector and deal with it correctly. To accomplish this, we will first look at the case of gasoline injectors and then at those of diesel injectors Land Rover Discovery Sport.
Leaking injector on my petrol Land Rover Discovery Sport
It is important 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 biggest 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 Land Rover Discovery Sport: The different leaks
It should be noted that injector leaks on a Land Rover Discovery Sport equipped with a petrol engine are pretty infrequent. This is caused by the much lower pressure in the petrol intake systems. Even so, 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 part that is connected to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
At last, you may experience 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 previously.
Leaking injector on my diesel Land Rover Discovery Sport
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system 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 Land Rover Discovery Sport: The different leaks
In the case of leaking diesel injectors on your Land Rover Discovery Sport, there are three different types 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 suggests, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Land Rover Discovery Sport will be the result of 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 suggest you to read this article on the presence of oil leaking on your Land Rover Discovery Sport.
Leaking injector on my Land Rover Discovery Sport, how to fix the leak
And finally, 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 endured. But think that the pressure in the circuit is enormous, especially on diesel engines. So you will have to take some measures:
- Lower the pressure before any work is done…
- 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 regularly be restricted to swapping the seals that have failed:
- Situate 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 complex, but if you have the smallest hesitation in the treatment of your injector that leaks on your Land Rover Discovery Sport, we suggest you to get closer to your auto mechanic to avoid any bad handling that could severely harm the condition of your Land Rover Discovery Sport.
If you want more tutorials on the Land Rover Discovery Sport, go to our Land Rover Discovery Sport category.
