If you are informed of abnormal symptoms on your car, you are right to be intrigued, because a car represents a huge annual budget and unforeseen breakdowns don’t reduce the bill. So what if you feel like you have a leaking injector on your Volkswagen New Beetle? You probably figured it out thanks to black/oily drips along your engine, or a troubled idle, or strange black smoke. These three signs of illness are the main signals of a leaking injector. As this problem can cause more severe engine complications on your car, we chose to produce this content page to help you validate the failure of a leaking injector and treat it correctly. To do so, we will first check out the circumstance of gasoline injectors and then at those of diesel injectors Volkswagen New Beetle.
Leaking injector on my petrol Volkswagen New Beetle
It is vital to know that the injectors on petrol and diesel engines are different, the truth 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 Volkswagen New Beetle: The different leaks
It should be noted that injector leaks on a Volkswagen New Beetle equipped with a petrol engine are rather rare. This is caused by the much lower pressure in the petrol intake systems. However, there are two sort 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 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 part 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 New Beetle
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 Volkswagen New Beetle: The different leaks
In the circumstance of leaking diesel injectors on your Volkswagen New Beetle, there are three different sort of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform in the long run, usually 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 New Beetle 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 encounter an air noise and a compression loss. - If after verifying you have oil leaking but it does not come from your injectors, we advise you to consult this content page on the presence of oil leaking on your Volkswagen New Beetle.
Leaking injector on my Volkswagen New Beetle, how to fix the leak
And at last, we’re going to check out how to fix a leaking injector on your car. Oftentimes a leak is connected, as we have seen previously, to a worn seal because of the pressures endured. 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 achieved…
- 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 frequently be restricted to replacing the seals that have failed:
- Identify the source of the leak
- Take apart the injector in question
- Change the corresponding seal kit
- Reassemble the set up and tighten with a torque wrench in respect with the manufacturer’s standards.
In all cases, these interventions are not necessarily difficult, but if you have the smallest hesitation in the treatment of your injector that leaks on your Volkswagen New Beetle, we advise you to get closer to your repair shop to avoid any bad manipulation that could seriously harm the condition of your Volkswagen New Beetle.
If you want more guides on the Volkswagen New Beetle, go to our Volkswagen New Beetle category.
