If you are aware of abnormal symptoms on your vehicle, you are right to be intrigued, because a car represents a big annual budget and unpredicted malfunctions don’t reduce the expenses. So what if you feel like you have a leaking injector on your PORSCHE BOXSTER? You most likely figured it out thanks to black/oily drips along your engine, or a disturbed idle, or unconventional black smoke. These three symptoms are the main signals of a leaking injector. As this failure can produce more significant engine concerns on your car, we decided to publish this content page to help you verify the failure of a leaking injector and handle it properly. To do so, we will first of all check out the circumstance of gasoline injectors and then at those of diesel injectors PORSCHE BOXSTER.
Leaking injector on my petrol PORSCHE BOXSTER
It is fundamental to know that the injectors on petrol and diesel engines are different, actually, the difference in combustion between these two kind of engines makes the injection different. The main 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 PORSCHE BOXSTER: The different leaks
It should be mentioned that injector leaks on a PORSCHE BOXSTER equipped with a petrol engine are rather infrequent. This is as a result of the much lower pressure in the petrol intake systems. Even so, there are two kind 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 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 occur from the junction with the engine and not with the rail as seen before.
Leaking injector on my diesel PORSCHE BOXSTER
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure generates 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 PORSCHE BOXSTER: The different leaks
In the circumstance of leaking diesel injectors on your PORSCHE BOXSTER, there are three different kind of leaks:
- Leakage from the injector inlet:
In this instance, 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 suggests, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your PORSCHE BOXSTER will be caused 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 experience 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 existence of oil leaking on your PORSCHE BOXSTER.
Leaking injector on my PORSCHE BOXSTER, how to fix the leak
And at last, we’re going to check out how to fix a leaking injector on your car. Very often a leak is linked, as we have seen sooner, to a worn seal caused by the pressures suffered. But think that the pressure in the circuit is monumental, especially on diesel engines. So you will have to take some measures:
- Lower the pressure before any work is conducted…
- 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 replacing the seals that have failed:
- Find the source of the leak
- Dismantle the injector in question
- Replace 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 specifically complex, but if you have the tiniest doubt in the treatment of your injector that leaks on your PORSCHE BOXSTER, we encourage you to get closer to your mechanic to avoid any bad manipulation that could significantly harm the condition of your PORSCHE BOXSTER.
If you want more guides on the PORSCHE BOXSTER, go to our PORSCHE BOXSTER category.
