In the event you are informed of unusual signs on your car, you are right to be worried, because a car represents a massive annual budget and surprising malfunctions don’t reduce the bill. So what if you find that you have a leaking injector on your Opel Meriva? You probably figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or uncommon black smoke. These three symptoms are the main signs of a leaking injector. As this problem can produce more severe engine trouble on your car, we made a decision to publish this content to help you ensure the failure of a leaking injector and handle it properly. To do this, we will initially look at the circumstance of gasoline injectors and then at those of diesel injectors Opel Meriva.
Leaking injector on my petrol Opel Meriva
It is vital to know that the injectors on petrol and diesel engines are different, in fact, the difference in combustion between these two types of engines makes the injection different. 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 Opel Meriva: The different leaks
It should be noted that injector leaks on a Opel Meriva equipped with a petrol engine are rather infrequent. This is because of the much lower pressure in the petrol intake systems. Even so, 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 part 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 portion of the injector of your car, this one will come from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel Opel Meriva
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 Opel Meriva: The different leaks
In the circumstance of leaking diesel injectors on your Opel Meriva, there are three several types of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform as time passes, in most cases the leak will be at the clamping point. - Injector return leakage:
As its name implies, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Opel Meriva 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 troublesome, it is the junction between the engine and the injector nose that leaks at a copper seal, you should feel an air noise and a compression loss. - If after verifying you have oil leaking but it does not come from your injectors, we encourage you to consult this content on the presence of oil leaking on your Opel Meriva.
Leaking injector on my Opel Meriva, 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 connected, as we have seen prior to this, to a worn seal caused by the pressures endured. But think that the pressure in the circuit is enormous, especially on diesel engines. So you will have to take some safety measures:
- Lower the pressure before any work is done…
- 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 regularly be limited to swapping the seals that have failed:
- Situate 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 respect with the manufacturer’s standards.
In all cases, these interventions are not automatically difficult, but if you have the smallest doubt in the treatment of your injector that leaks on your Opel Meriva, we encourage you to get closer to your auto mechanic to avoid any bad manipulation that could significantly harm the condition of your Opel Meriva.
If perhaps you have any additional questions about the Opel Meriva, do not hesitate to consult our Opel Meriva category.
