Whenever you are aware of irregular signs on your automobile, you are right to be worried, because a car represents a huge annual budget and unexpected malfunctions don’t lower the costs. So what if you sense that you have a leaking injector on your Land Rover Defender? You likely figured it out thanks to black/oily drips along your engine, or a disturbed idle, or unconventional black smoke. These three signs of illness are the main symptoms of a leaking injector. As this problem can lead to more significant engine trouble on your car, we made a decision to publish this article to help you validate the failure of a leaking injector and deal with it properly. To do this, we will initially take a look at the circumstance of gasoline injectors and then at those of diesel injectors Land Rover Defender.
Leaking injector on my petrol Land Rover Defender
It is vital to know that the injectors on petrol and diesel engines are distinct, the reality is, the difference in combustion between these two sort 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 Defender: The different leaks
It should be noted that injector leaks on a Land Rover Defender equipped with a petrol engine are rather rare. This is due to the much lower pressure in the petrol intake systems. Even so, 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 attached 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 occur from the junction with the engine and not with the rail as seen sooner.
Leaking injector on my diesel Land Rover Defender
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 Land Rover Defender: The different leaks
In the circumstance of leaking diesel injectors on your Land Rover Defender, there are three several sort of leaks:
- Leakage from the injector inlet:
In this instance, 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 reveals, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Land Rover Defender 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 troublesome, it is the junction between the engine and the injector nose that leaks at a copper seal, you should feel an air noise and a compression loss. - If after checking you have oil leaking but it does not come from your injectors, we recommend you to browse this article on the existence of oil leaking on your Land Rover Defender.
Leaking injector on my Land Rover Defender, how to fix the leak
And at last, we’re going to take a look at how to fix a leaking injector on your car. Regularly a leak is associated, as we have seen prior to this, to a worn seal caused by the pressures endured. But think that the pressure in the circuit is monumental, 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.
Regarding the repair part of your leak, it will oftentimes be limited to changing the seals that have failed:
- Discover the source of the leak
- Take apart 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 situations, these interventions are not specifically very hard, but if you have the smallest hesitation in the treatment of your injector that leaks on your Land Rover Defender, we recommend you to get closer to your auto mechanic to avoid any bad manipulation that could severely harm the condition of your Land Rover Defender.
To find more tips on the Land Rover Defender, take a look at the Land Rover Defender category.
