If you are informed of unusual signs on your automobile, you are right to be worried, because a car represents a huge annual budget and unpredicted malfunctions don’t lower the expenses. So what if you think that you have a leaking injector on your Mazda Mx5? You most likely figured it out thanks to black/oily drips along your engine, or a troubled idle, or unconventional black smoke. These three manifestations are the main signs of a leaking injector. As this problem can cause more critical engine complications on your car, we made a decision to produce this content to help you verify the failure of a leaking injector and handle it correctly. To accomplish this, we will first of all take a look at the circumstance of gasoline injectors and then at those of diesel injectors Mazda Mx5.
Leaking injector on my petrol Mazda Mx5
It is vital to know that the injectors on petrol and diesel engines are different, in fact, the difference in combustion between these two sort of engines makes the injection different. The key 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 Mazda Mx5: The different leaks
It should be known that injector leaks on a Mazda Mx5 equipped with a petrol engine are rather rare. This is resulting from 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 conceivable that you have a leak from the top of the injector, this is the part that is linked to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
At last, 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 sooner.
Leaking injector on my diesel Mazda Mx5
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 Mazda Mx5: The different leaks
In the circumstance of leaking diesel injectors on your Mazda Mx5, there are three several sort of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform with time, generally the leak will be at the clamping point. - Injector return leakage:
As its name reveals, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Mazda Mx5 will be caused by 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 experience an air noise and a compression loss. - If after examining you have oil leaking but it does not come from your injectors, we advise you to consult this content on the existence of oil leaking on your Mazda Mx5.
Leaking injector on my Mazda Mx5, how to fix the leak
And to finish, we’re going to take a look at how to fix a leaking injector on your car. Very often a leak is associated, as we have seen previously, to a worn seal caused by the pressures suffered. But think that the pressure in the circuit is monumental, specifically on diesel engines. So you will have to take some precautions:
- Lower the pressure before any work is achieved…
- 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 very often be restricted to replacing the seals that have failed:
- Situate the source of the leak
- Dismantle the injector in question
- Replace the corresponding seal kit
- Reassemble the assembly and tighten with a torque wrench in respect with the manufacturer’s standards.
In all situations, these interventions are not necessarily complex, but if you have the slightest doubt in the treatment of your injector that leaks on your Mazda Mx5, we advise you to get closer to your repair shop to avoid any bad manipulation that could critically harm the condition of your Mazda Mx5.
To discover more tips on the Mazda Mx5, take a look at the Mazda Mx5 category.
