Whenever you are informed of irregular symptoms on your automobile, you are right to be preoccupied, because a car represents a huge annual budget and unforeseen breakdowns don’t reduce the costs. So what if you find that you have a leaking injector on your Vauxkhall Moka? You almost certainly figured it out thanks to black/oily drips along your engine motor, or a troubled idle, or unusual black smoke. These three manifestations are the main signs of a leaking injector. As this failure can end up in more serious engine problems on your car, we decided to publish this article content to help you confirm the failure of a leaking injector and deal with it correctly. To do so, we will first of all look into the case of gasoline injectors and then at those of diesel injectors Vauxkhall Moka.
Leaking injector on my petrol Vauxkhall Moka
It is essential to know that the injectors on petrol and diesel engines are distinct, in reality, the difference in combustion between these two kind of engines makes the injection distinct. The essential 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 Vauxkhall Moka: The different leaks
It should be said that injector leaks on a Vauxkhall Moka equipped with a petrol engine are rather rare. This is caused by the much lower pressure in the petrol intake systems. Nevertheless, there are two kind of leaks:
- Leakage from the top of the injector:
It is plausible that you have a leak from the top of the injector, this is the portion that is connected 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 come from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel Vauxkhall Moka
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 Vauxkhall Moka: The different leaks
In the case of leaking diesel injectors on your Vauxkhall Moka, there are three several kind of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform as time passes, generally 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 Vauxkhall Moka will be the result 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 find an air noise and a compression loss. - If after examining you have oil leaking but it does not come from your injectors, we encourage you to browse this article content on the existence of oil leaking on your Vauxkhall Moka.
Leaking injector on my Vauxkhall Moka, 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 as a result of the pressures suffered. But think that the pressure in the circuit is tremendous, specifically 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.
Concerning the repair part of your leak, it will oftentimes be restricted to swapping the seals that have failed:
- Situate the source of the leak
- Take apart 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 cases, these interventions are not necessarily complex, but if you have the slightest hesitation in the treatment of your injector that leaks on your Vauxkhall Moka, we encourage you to get closer to your auto mechanic to avoid any bad manipulation that could severely harm the condition of your Vauxkhall Moka.
If you wish more tutorials on the Vauxkhall Moka, go to our Vauxkhall Moka category.
