Whenever you are aware of irregular signs on your vehicle, you are right to be worried, because a car represents a massive annual budget and unforeseen malfunctions don’t lower the costs. So what if you find that you have a leaking injector on your Peugeot 607? You most likely figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or unconventional black smoke. These three signs of illness are the main indicators of a leaking injector. As this troubles can bring on more significant engine problems on your car, we thought we would prepare this article to help you verify the failure of a leaking injector and treat it correctly. To achieve this, we will first of all look at the circumstance of gasoline injectors and then at those of diesel injectors Peugeot 607.
Leaking injector on my petrol Peugeot 607
It is important to know that the injectors on petrol and diesel engines are distinct, actually, the difference in combustion between these two sort of engines makes the injection distinct. The essential 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 Peugeot 607: The different leaks
It should be known that injector leaks on a Peugeot 607 equipped with a petrol engine are rather infrequent. This is because of 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 component that is connected 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 occur from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel Peugeot 607
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 Peugeot 607: The different leaks
In the circumstance of leaking diesel injectors on your Peugeot 607, there are three different sort of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform after a while, 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 Peugeot 607 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 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 checking you have oil leaking but it does not come from your injectors, we advise you to consult this article on the existence of oil leaking on your Peugeot 607.
Leaking injector on my Peugeot 607, how to fix the leak
And finally, we’re going to look at how to fix a leaking injector on your car. Oftentimes a leak is linked, as we have seen prior to this, to a worn seal because of 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…
- 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 regularly be restricted to swapping the seals that have failed:
- Find out 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 automatically very hard, but if you have the tiniest hesitation in the treatment of your injector that leaks on your Peugeot 607, we advise you to get closer to your repair shop to avoid any bad manipulation that could seriously harm the condition of your Peugeot 607.
If you have any additional questions about the Peugeot 607, do not hesitate to consult our Peugeot 607 category.
