If you are informed of abnormal signs on your automobile, you are right to be preoccupied, because a car represents a big annual budget and unforeseen breakdowns don’t reduce the bill. So what if you sense that you have a leaking injector on your Toyota Land Cruiser Serie 70? You most likely figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or strange black smoke. These three signs of illness are the main signals of a leaking injector. As this failure can bring about more critical engine trouble on your car, we decided to prepare this content to help you confirm the failure of a leaking injector and treat it correctly. To achieve this, we will first of all look at the circumstance of gasoline injectors and then at those of diesel injectors Toyota Land Cruiser Serie 70.
Leaking injector on my petrol Toyota Land Cruiser Serie 70
It is crucial to know that the injectors on petrol and diesel engines are different, in reality, the difference in combustion between these two kind of engines makes the injection different. The main 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 Toyota Land Cruiser Serie 70: The different leaks
It should be noted that injector leaks on a Toyota Land Cruiser Serie 70 equipped with a petrol engine are pretty infrequent. This is as a result of the much lower pressure in the petrol intake systems. Nevertheless, there are two kind 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 appear from the junction with the engine and not with the rail as seen before.
Leaking injector on my diesel Toyota Land Cruiser Serie 70
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 Toyota Land Cruiser Serie 70: The different leaks
In the circumstance of leaking diesel injectors on your Toyota Land Cruiser Serie 70, 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 relates to the management of the fuel return in the injector, this time the injector that leaks on your Toyota Land Cruiser Serie 70 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 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 examining you have oil leaking but it does not come from your injectors, we suggest you to consult this content on the presence of oil leaking on your Toyota Land Cruiser Serie 70.
Leaking injector on my Toyota Land Cruiser Serie 70, how to fix the leak
And at last, we’re going to look at how to fix a leaking injector on your car. Oftentimes a leak is linked, as we have seen previously, to a worn seal as a result of the pressures suffered. But think that the pressure in the circuit is enormous, especially on diesel engines. So you will have to take some precautions:
- 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 frequently be restricted to swapping the seals that have failed:
- Locate 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 respect with the manufacturer’s standards.
In all cases, these interventions are not necessarily complicated, but if you have the smallest hesitation in the treatment of your injector that leaks on your Toyota Land Cruiser Serie 70, we suggest you to get closer to your mechanic to avoid any bad handling that could critically harm the condition of your Toyota Land Cruiser Serie 70.
To find more tips on the Toyota Land Cruiser Serie 70, take a look at the Toyota Land Cruiser Serie 70 category.
