In the event that you are aware of irregular symptoms on your car, you are right to be preoccupied, because a car represents a big annual budget and unpredicted breakdowns don’t lower the bill. So what if you feel as if you have a leaking injector on your Volkswagen Golf 8? You almost certainly figured it out thanks to black/oily drips along your engine, or a troubled idle, or unusual black smoke. These three manifestations are the main signals of a leaking injector. As this problem can bring about more severe engine complications on your car, we made a decision to prepare this content page to help you validate the failure of a leaking injector and deal with it correctly. To do so, we will first of all check out the circumstance of gasoline injectors and then at those of diesel injectors Volkswagen Golf 8.
Leaking injector on my petrol Volkswagen Golf 8
It is important to know that the injectors on petrol and diesel engines are distinct, the truth is, the difference in combustion between these two sort of engines makes the injection distinct. The biggest 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 Volkswagen Golf 8: The different leaks
It should be said that injector leaks on a Volkswagen Golf 8 equipped with a petrol engine are pretty infrequent. This is due to 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 part that is attached 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 appear from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel Volkswagen Golf 8
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 Volkswagen Golf 8: The different leaks
In the circumstance of leaking diesel injectors on your Volkswagen Golf 8, there are three different sort of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform with time, commonly the leak will be at the clamping point. - Injector return leakage:
As its name suggests, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Volkswagen Golf 8 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 encounter 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 consult this content page on the presence of oil leaking on your Volkswagen Golf 8.
Leaking injector on my Volkswagen Golf 8, how to fix the leak
And finally, we’re going to check out how to fix a leaking injector on your car. Frequently a leak is linked, as we have seen sooner, to a worn seal as a result of the pressures endured. But think that the pressure in the circuit is gigantic, especially on diesel engines. So you will have to take some measures:
- Lower the pressure before any work is achieved…
- 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 regularly be limited to swapping the seals that have failed:
- Discover the source of the leak
- Dismantle 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 automatically difficult, but if you have the tiniest hesitation in the treatment of your injector that leaks on your Volkswagen Golf 8, we encourage you to get closer to your repair shop to avoid any bad manipulation that could critically harm the condition of your Volkswagen Golf 8.
To get more tips on the Volkswagen Golf 8, take a look at the Volkswagen Golf 8 category.
