In cases where you are aware of abnormal signs on your car, you are right to be intrigued, because a car represents a huge annual budget and sudden breakdowns don’t reduce the costs. So what if you sense that you have a leaking injector on your Toyota Land Cruiser Serie 150? You almost certainly figured it out thanks to black/oily drips along your engine unit, or a troubled idle, or uncommon black smoke. These three symptoms are the main symptoms of a leaking injector. As this failure can bring on more serious engine problems on your car, we thought we would prepare this content page to help you confirm the failure of a leaking injector and deal with it correctly. To accomplish this, we will first look at the circumstance of gasoline injectors and then at those of diesel injectors Toyota Land Cruiser Serie 150.
Leaking injector on my petrol Toyota Land Cruiser Serie 150
It is essential to know that the injectors on petrol and diesel engines are different, in reality, the difference in combustion between these two sort 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 Toyota Land Cruiser Serie 150: The different leaks
It should be said that injector leaks on a Toyota Land Cruiser Serie 150 equipped with a petrol engine are pretty rare. This is resulting from the much lower pressure in the petrol intake systems. However, there are two sort of leaks:
- Leakage from the top of the injector:
It is plausible that you have a leak from the top of the injector, this is the component 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 encounter a leak coming from the lower portion 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 Toyota Land Cruiser Serie 150
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 Toyota Land Cruiser Serie 150: The different leaks
In the circumstance of leaking diesel injectors on your Toyota Land Cruiser Serie 150, there are three different sort of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform as time passes, commonly the leak will be at the clamping point. - Injector return leakage:
As its name indicates, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Toyota Land Cruiser Serie 150 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 troublesome, it is the junction between the engine and the injector nose that leaks at a copper seal, you should experience an air noise and a compression loss. - If after checking you have oil leaking but it does not come from your injectors, we suggest you to browse this content page on the existence of oil leaking on your Toyota Land Cruiser Serie 150.
Leaking injector on my Toyota Land Cruiser Serie 150, how to fix the leak
And finally, we’re going to look at how to fix a leaking injector on your car. Frequently a leak is linked, 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 enormous, specifically on diesel engines. So you will have to take some measures:
- Lower the pressure before any work is completed…
- 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 oftentimes be limited to changing the seals that have failed:
- Find the source of the leak
- Take apart 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 cases, these interventions are not necessarily complex, but if you have the smallest doubt in the treatment of your injector that leaks on your Toyota Land Cruiser Serie 150, we suggest you to get closer to your auto technician to avoid any bad manipulation that could severely harm the condition of your Toyota Land Cruiser Serie 150.
If you wish more tutorials on the Toyota Land Cruiser Serie 150, go to our Toyota Land Cruiser Serie 150 category.
