I recently installed new injectors on my car. replaced my 780 with 1450. But i have a very small fuel leak now :/ its leaking at the bottom of the injector by the oring that seats in the manifold. but its not leaking around the outside of the oring between the oring and the manifold. it is seated completely. but it is leaking around the o ring and the actual injector its self??? the bolts that tighten the fuel rail down (which is what im guessing only thing that pushs/keeps the injectors in) are tight ive taken it apart ounce switched the oring with different injector thinking maybe it was the oring but no the same injector is still leaking. its the one on the far left hand side. i dono if maybe it just hasnt settled yet?? i havnt hit boost yet so maybe that will seal it? its not a big leak at all dont even think its enough to catch fire just enough to make it shiny but havnt boosted yet so really hasnt been under alot of fuel pressure. but i would like not to have any leaks preferably haha has anyone had this problem?? or maybe something i could try to fix this that i havnt thought of?? thanks for any advice!!

 

Take some oil and lube up the o rings

 

Fuel leaks are not something to mess around with, even the smallest leak can cause an engine fire. The best thing to do would be replace the seals and make sure all the sealing surfaces are clean and free of debris. The more you boost the larger the leak will become since pressures will increase.

 

?? how would this stop a leak?

 

there brand new orings? i took it out and made sure everything was clean and seated properly. maybe ill just use the orings on my old injectors? just doesnt make sense to me that its leaking from where its leaking?

 

Maybe you ripped it slightly when installing the injectors? Did you oil the injectors when you installed them? Lubricating them with a little oil helps in seating them in while reducing the risk of having a possible tear or crack etc...

It could be many issues. I'd probably start by replacing the o-ring and lubricating it before installing. What injector brands are they?

 

There FIC's. well the oring that sits into the intake manifold isnt hard to put in i dont think oil is necessary when instaling them they fit so perfect? i dono how i could of tore it from where its leaking when the orings are already on the injectors never took them off besides when i switched the oring out with another and still had the same leak so it wasnt the oring. (leaking around the injector its self then there is the oring then the manifold where its not leaking if that makes sense wish i could take a pic to describe but dont think it would help the oring that goes to the fuel rail wich is the harder one to put in isnt leaking i used a lil water on them because thought oil would dmg the rubber oring over time?

 

Is that injector feel as snug as the other injectors? (twisting slightly motion to check)

Also try to switching that leaking injector with one from another cylinder. If it leaks again, then there is something wrong with the injector itself and might need to be sent back.

 

Yeah they seem to all feel the same maybe I'll swap it with another one and change the oring with an old one. I'll let you know if it works. If not maybe I'll just send that injector back.