9th injector-- help
Thread Starter
Le Mans Master
Joined: May 2006
Posts: 7,708
Likes: 266
From: indy indiana
9th injector-- help
replaced the injectors today. have a fuel leak where the 9th screws/bolts to the fuel rail. Seems to be coming from the male/female union AND from where the line passes thru the bolt. Took it back apart and put a rubber o ring on the line, still leaks from where the line passes thru the bolt. Can I simply disconnect the line and cap it off? suggestions? thnks.
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
What I found on my car was that the bore in the fuel rail had a sharp edge on it that was cutting the O-ring. I sanded the edge off and polished the bore so the O-ring would slip into place without being cut. Never had a leak since then.
Race Director
Joined: Sep 2003
Posts: 16,836
Likes: 337
From: Database Error Indiana
I ran mine for a couple years with that unplugged. It started funny but not a problem. I think I cranked a couple seconds, gave it 1/2 throttle for a second and then it started. Once started it was all good. Even in single digit temps.
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
This image might help you see what is supposed to be involved:
There are two O-rings involved, #104 and #107. In my case #107 was getting sliced by the sharp edge on the 45° bevel inside the fuel rail.
There are two O-rings involved, #104 and #107. In my case #107 was getting sliced by the sharp edge on the 45° bevel inside the fuel rail.
Safety Car
Joined: Nov 2009
Posts: 3,971
Likes: 340
From: Adelaide South Australia
I had the same trouble a while ago with my 9th injector, tried 3 different o rings with no success, then tried a piece of fuel rubber tube i found in a box of carby bits, it worked great for the last few years,
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Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
For example, you wouldn't believe how complex the AC system is (working on an upgrade to a Denso compressor -- article to follow). Here's a hint:
http://www.misterpeachy.com/VetteStu..._to_Denso.html