In the event you are alert of unusual symptoms on your vehicle, you are right to be concerned, because a car represents a huge annual budget and surprising breakdowns don’t lower the bill. So what if you think that you have a leaking injector on your Renault Master 3? You almost certainly figured it out thanks to black/oily drips along your engine unit, or a troubled idle, or unusual black smoke. These three symptoms are the main signs of a leaking injector. As this troubles can bring about more critical engine concerns on your car, we made a decision to prepare this article to help you ensure the failure of a leaking injector and deal with it correctly. To achieve this, we will first check out the circumstance of gasoline injectors and then at those of diesel injectors Renault Master 3.
Leaking injector on my petrol Renault Master 3
It is vital to know that the injectors on petrol and diesel engines are different, the reality is, the difference in combustion between these two kind 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 Renault Master 3: The different leaks
It should be mentioned that injector leaks on a Renault Master 3 equipped with a petrol engine are rather rare. This is caused by 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 component that is linked to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
Finally, you may encounter 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 Renault Master 3
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure 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 Renault Master 3: The different leaks
In the circumstance of leaking diesel injectors on your Renault Master 3, there are three different kind of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform over time, generally the leak will be at the clamping point. - Injector return leakage:
As its name reveals, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Renault Master 3 will be a consequence of 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 verifying you have oil leaking but it does not come from your injectors, we encourage you to consult this article on the existence of oil leaking on your Renault Master 3.
Leaking injector on my Renault Master 3, how to fix the leak
And finally, we’re going to check out how to fix a leaking injector on your car. Regularly a leak is connected, 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 monumental, especially on diesel engines. So you will have to take some precautions:
- Lower the pressure before any work is carried out…
- Masking 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 frequently be restricted to swapping the seals that have failed:
- Find 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 situations, these interventions are not inevitably complicated, but if you have the smallest hesitation in the treatment of your injector that leaks on your Renault Master 3, we encourage you to get closer to your repair shop to avoid any bad manipulation that could seriously harm the condition of your Renault Master 3.
To discover more tips on the Renault Master 3, take a look at the Renault Master 3 category.
