Whenever you are informed of unusual signs on your car, you are right to be worried, because a car represents a massive annual budget and sudden malfunctions don’t lower the costs. So what if you think that you have a leaking injector on your Opel Corsa? You likely figured it out thanks to black/oily drips along your engine, or a troubled idle, or uncommon black smoke. These three signs of illness are the main signals of a leaking injector. As this troubles can bring on more severe engine concerns on your car, we thought we would compose this content page to help you verify the failure of a leaking injector and treat it properly. To achieve this, we will first look into the circumstance of gasoline injectors and then at those of diesel injectors Opel Corsa.
Leaking injector on my petrol Opel Corsa
It is fundamental to know that the injectors on petrol and diesel engines are distinct, actually, the difference in combustion between these two types of engines makes the injection distinct. 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 Opel Corsa: The different leaks
It should be noted that injector leaks on a Opel Corsa equipped with a petrol engine are rather rare. This is resulting from 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 connected 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 part of the injector of your car, this one will appear from the junction with the engine and not with the rail as seen sooner.
Leaking injector on my diesel Opel Corsa
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system 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 Opel Corsa: The different leaks
In the circumstance of leaking diesel injectors on your Opel Corsa, there are three several types of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform with time, in most cases 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 Opel Corsa 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 find an air noise and a compression loss. - If after verifying you have oil leaking but it does not come from your injectors, we recommend you to browse this content page on the existence of oil leaking on your Opel Corsa.
Leaking injector on my Opel Corsa, how to fix the leak
And finally, we’re going to look into how to fix a leaking injector on your car. Very often a leak is associated, as we have seen prior to this, to a worn seal due to the pressures endured. But think that the pressure in the circuit is monumental, specifically on diesel engines. So you will have to take some 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.
Relating to the repair part of your leak, it will regularly be limited to replacing the seals that have failed:
- Find out 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 respect with the manufacturer’s standards.
In all situations, these interventions are not inevitably difficult, but if you have the smallest uncertainty in the treatment of your injector that leaks on your Opel Corsa, we recommend you to get closer to your repair shop to avoid any bad manipulation that could seriously harm the condition of your Opel Corsa.
To discover more tips on the Opel Corsa, take a look at the Opel Corsa category.
