Fuel injectors?

[Backlash2032]

Well. Its a sort of noobish question. Ever since my engine rebuild I've had trouble with the injectors sealing. First I used the o ring kit on drift motion (7m GTE BTW) and I got a leak on the number two injector. Replaced that o ring and I was good for awhile. Then number 5 started leaking. Now I said screw it and bought a set of fel pro o rings from rock auto. Installed them last night and jumped fp and b+, gushing fuel from the number 6 injector.

The first and second install i just pushed them into the rail. Now on the third time I dipped them in fuel and pushed and turned at the same time.. is there something I'm doing wrong or is this kind of stuff just hit and miss?

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[IanC]

Did the spacers get installed correctly during the rebuild?

 

[Backlash2032]

Where the rail bolts to the head? I believe I have them in there correctly.. I have it so the actual spacer is towards the head, and then the black part is towards the rail.

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[IanC]

The TSRM us pretty detailed on the proper installation of the injectors and spacers. Might check it.

 

[Backlash2032]

I checked it last night and all it said was twist and push.

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[AbsoluteSpeed]

Did you dab a bit of gas on the o-ring like the TSRM suggests? I've had to replace two injectors this summer and haven’t had an issue.

 

[Poodles]

I'd be looking to see if there's damage in the rail or on the injector that would tear the o-rings.

 

[Backlash2032]

The thing is, it happens on different injectors every time..

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[7M4EVR]

What kind of injectors are these?

 

[Backlash2032]

Factory 440ccs

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[supraguy@aol]

I ALWAYS dab petroleum jelly on the opening of the fuel rail, rather than the injector O-ring.
I've never once had an injector leak. Check for sharp edges around those openings, as Poodles suggests.

 

[Backlash2032]

Okay. Well I was trying to do it with the rail on the car, so that's probably a majority of the problem. Gonna grab a bite to eat then take the rail off, dab some petroleum jelly on the rail and try again.

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[tonyphip]

def use lube and twist on the install i had the same problem

 

[Backlash2032]

So far so good! hopefully they hold out this time. Thanks for the vaseline trick.