In the event that you are alert of abnormal symptoms on your car, you are right to be concerned, because a car represents a massive annual budget and surprising breakdowns don’t lower the costs. So what if you think that you have a leaking injector on your Opel Zafira Tourer? You almost certainly figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or uncommon black smoke. These three signs of illness are the main indicators of a leaking injector. As this failure can cause more severe engine concerns on your car, we made a decision to compose this article to help you ensure the failure of a leaking injector and treat it correctly. To achieve this, we will first look at the circumstance of gasoline injectors and then at those of diesel injectors Opel Zafira Tourer.
Leaking injector on my petrol Opel Zafira Tourer
It is vital to know that the injectors on petrol and diesel engines are different, the reality is, the difference in combustion between these two sort of engines makes the injection different. The biggest difference lies in the pressure undergone 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 Zafira Tourer: The different leaks
It should be mentioned that injector leaks on a Opel Zafira Tourer equipped with a petrol engine are rather infrequent. This is resulting from the much lower pressure in the petrol intake systems. Nevertheless, there are two sort of leaks:
- Leakage from the top of the injector:
It is conceivable 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:
Finally, 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 Opel Zafira Tourer
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure 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 Opel Zafira Tourer: The different leaks
In the circumstance of leaking diesel injectors on your Opel Zafira Tourer, there are three several sort of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform along with time, usually 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 Zafira Tourer 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 annoying, 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 verifying you have oil leaking but it does not come from your injectors, we suggest you to read this article on the presence of oil leaking on your Opel Zafira Tourer.
Leaking injector on my Opel Zafira Tourer, 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 sooner, to a worn seal due to the pressures suffered. But think that the pressure in the circuit is tremendous, especially on diesel engines. So you will have to take some precautions:
- Lower the pressure before any work is completed…
- 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 restricted to replacing the seals that have failed:
- Locate 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 accordance with the manufacturer’s standards.
In all situations, these interventions are not inevitably complicated, but if you have the slightest doubt in the treatment of your injector that leaks on your Opel Zafira Tourer, we suggest you to get closer to your auto technician to avoid any bad manipulation that could significantly harm the condition of your Opel Zafira Tourer.
If you have any additional questions about the Opel Zafira Tourer, do not hesitate to consult our Opel Zafira Tourer category.
