In the event that you are alert of unusual signs on your automobile, you are right to be intrigued, because a car represents a huge annual budget and unpredicted malfunctions don’t lower the costs. So what if you sense that you have a leaking injector on your Peugeot 107? You likely figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or unconventional black smoke. These three signs of illness are the main indicators of a leaking injector. As this problem can bring about more critical engine problems on your car, we decided to publish this article to help you confirm the failure of a leaking injector and treat it properly. To accomplish this, we will initially look at the case of gasoline injectors and then at those of diesel injectors Peugeot 107.
Leaking injector on my petrol Peugeot 107
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 types of engines makes the injection distinct. The essential 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 Peugeot 107: The different leaks
It should be mentioned that injector leaks on a Peugeot 107 equipped with a petrol engine are pretty rare. This is due to the much lower pressure in the petrol intake systems. Nevertheless, there are two types 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 linked 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 occur from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel Peugeot 107
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system creates 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 Peugeot 107: The different leaks
In the case of leaking diesel injectors on your Peugeot 107, there are three different types 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 relates to the management of the fuel return in the injector, this time the injector that leaks on your Peugeot 107 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 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 advise you to read this article on the existence of oil leaking on your Peugeot 107.
Leaking injector on my Peugeot 107, how to fix the leak
And to finish, we’re going to look at how to fix a leaking injector on your car. Oftentimes a leak is associated, as we have seen previously, to a worn seal due to the pressures suffered. But think that the pressure in the circuit is gigantic, specifically on diesel engines. So you will have to take some safety 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.
Concerning the repair part of your leak, it will frequently be limited to changing the seals that have failed:
- Locate the source of the leak
- Dismantle the injector in question
- Replace the corresponding seal kit
- Reassemble the assembly and tighten with a torque wrench in accordance with the manufacturer’s standards.
In all situations, these interventions are not necessarily very hard, but if you have the slightest doubt in the treatment of your injector that leaks on your Peugeot 107, we advise you to get closer to your mechanic to avoid any bad handling that could seriously harm the condition of your Peugeot 107.
If you have any further questions about the Peugeot 107, do not hesitate to consult our Peugeot 107 category.
