In cases where you are informed of unusual symptoms on your automobile, you are right to be concerned, because a car represents a huge annual budget and surprising malfunctions don’t reduce the costs. So what if you feel as if you have a leaking injector on your Bmw Serie 1 F21? You likely figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or unconventional black smoke. These three manifestations are the main signs of a leaking injector. As this failure can bring about more critical engine trouble on your car, we thought we would prepare this content to help you ensure the failure of a leaking injector and deal with it correctly. To achieve this, we will first of all check out the circumstance of gasoline injectors and then at those of diesel injectors Bmw Serie 1 F21.
Leaking injector on my petrol Bmw Serie 1 F21
It is vital 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 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 Bmw Serie 1 F21: The different leaks
It should be mentioned that injector leaks on a Bmw Serie 1 F21 equipped with a petrol engine are rather rare. This is due to the much lower pressure in the petrol intake systems. However, 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 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 suffer a leak coming from the lower part 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 Bmw Serie 1 F21
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 Bmw Serie 1 F21: The different leaks
In the circumstance of leaking diesel injectors on your Bmw Serie 1 F21, there are three several kind of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform along with time, generally 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 Bmw Serie 1 F21 will be a consequence 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 browse this content on the existence of oil leaking on your Bmw Serie 1 F21.
Leaking injector on my Bmw Serie 1 F21, how to fix the leak
And to finish, we’re going to check out how to fix a leaking injector on your car. Frequently 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 enormous, specifically on diesel engines. So you will have to take some safety 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.
Relating to the repair part of your leak, it will oftentimes be limited to replacing the seals that have failed:
- Find the source of the leak
- Take apart the injector in question
- Replace 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 automatically complex, but if you have the slightest hesitation in the treatment of your injector that leaks on your Bmw Serie 1 F21, we suggest you to get closer to your auto mechanic to avoid any bad handling that could critically harm the condition of your Bmw Serie 1 F21.
To get more tips on the Bmw Serie 1 F21, take a look at the Bmw Serie 1 F21 category.
