leaking injector???

Hi my car is leaking fuel from the top of the injector ,can anyone explain how or why???

 

Side feed injectors have two O rings.



Because they pass through the fuel rail the need to seal at the top and bottom of the rail.



Heat, pressure and time can eventually cause the O ring's to fail with disastrous consequences if not fixed.

 

thanks mate is obvious bryan at brytech didnt do a plenum pull and has ripped me off all up 2grand

 

Not completely. Very easy to damage a o-ring when putting the injectors back in.

 

When things are tight, lube is your friend.

 

If the injectors are not put in right and/ or they have damaged O-Rings in the top or bottom - they will sit to one side visibly, indicating they need to be removed and pressed back in properly until they sit flush all the way around the injector body. (if the o - ring is not too damaged that is)

Whilst it is easy, to make a mistake and to not seat them properly (even with lubricant) , it is easy to detect by the eye that they are not seated properly as well.

Whilst they can be visbly seen to be off centre with the naked eye, a micrometer actually makes a good confirmation test they are spot on and seated properly by measuring all the way around and confirming they are even

Cheers

 

While a injector with a pinched o-ring *may* sit to the side, its not always guaranteed.

A micrometer is most definitely not a good way of ensuring they are correctly seated. Best off installing properly, the pressure testing with air or similar.

I've never had troubles with installing injectors other than Mike's stupid Sards.

 

is it a good idea to run injection cleaner with premium unleaded now and again???what brand do u recommened?

 

I don't like that crap. Get your injectors properly cleaned and change your fuel filter at proper intervals and all will be good.

 

You dont have to pull the injectors to do a plenum pull. Did you pay to get the injectors cleaned?

 

what lube would you recommend?

i replaced my injectors on the weekend and the top O-Ring on one of the injectors didn't seal properly, i didn't use lube when installing, maybe i should have???

 

just have my car in a garage at the moment havent payed yet or be quoted feel free to call me 0416348654 Emmanuel

 

Good old sex lube is good

waterbased and slippery :zlove:

 

lol

 

Am I right in saying sex lube like KY won't degrade the rubber like oil or silicon?

 

I use petroleum jelly.

Why would we want to ring you for? We gave you the answer.

 

If its good enough to put on your privates its good enough for orings

And yes waterbased lube is better for rubbers than oil based :rofl:

 

There is nothing wrong with applying a small amount of engine oil to the o-rings for lube either. You realise what's in petrol don't you?

 

hi mate can u contact me as i need a injector for my 300zx na Emmanuel 0416348654

 

No doubt you have a leak, seems you've been sniffing too much petrol!