C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

FUEL RAIL "O" RINGS

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Old Mar 28, 2005 | 01:44 PM
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Default FUEL RAIL "O" RINGS

In years past, I've heard cussing and discussing on this subject from many who have worked on them. Mostly concluding that you should avoid touching them, like the plague.

However, I now have my engine disassembled and my fuel rails are in tact, on the shelf, waiting to go back on the engine.

I am concerned, because when I was dismanteling them from the intake, the small "O" rings on the tips of the fuel rail inlet and outlet tubes, where they attach to the chassis tubing, were in BAAADDDD shape, looking like a couple of dried up fishing worms.

I would feel better if I could change all of them at all the cross tubing connections and all, but the old stores of woe are keeping me from it.

Are these a real problem or could most reasonably compotent mechanics
accomplish the task with minimal difficulty???
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Old Mar 28, 2005 | 02:12 PM
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it's easy, dude... just get a few #110 rubber o-rings, fuel proof, and you are set.
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Old Mar 28, 2005 | 02:27 PM
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Originally Posted by bogus
it's easy, dude... just get a few #110 rubber o-rings, fuel proof, and you are set.
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Old Mar 28, 2005 | 04:21 PM
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Check out this thread....

It will lead you to a GM part nember for the fuel rail o-ring kit.

http://forums.corvetteforum.com/showthread.php?t=963694

Hope this helps.

Chris

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Old Mar 28, 2005 | 04:29 PM
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Use a dab of motor oil on them when reassembling. Makes things go back together without nicking them up which can cause leaks.
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Old Mar 28, 2005 | 06:00 PM
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Wow!! Thanks guys !! I guess it was just one of those Freddy Cruger stories making me afraid to tackel it.

Sounds like my worries were unfounded.

Thanks again.
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Old Mar 28, 2005 | 06:06 PM
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Wow!! Thanks guys !! I guess it was just one of those Freddy Cruger stories making me afraid to tackel it.

Sounds like my worries were unfounded.

Thanks again.
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Old Mar 28, 2005 | 08:09 PM
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The only o-ring that is a pain is the one the goes in the end of the cold
start tube at the end of the fuel rail. The others are no problem.
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Old Mar 28, 2005 | 08:13 PM
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I believe the O-rings that go in the crossover tubes are smaller than the Injector O-rings. GM carries them..
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Old Mar 29, 2005 | 07:53 AM
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Thanks to the info you all provided, I stoped by Autozone last night. To my supprise, they had them. A boxed set of "O"-rings called a fuel rail seal kit. They actually had 3 items called a fuel rail seal kit. one added the word "INNER" and one the Word "OUTTER". After loking them over, I decided the correct one was the one with neither word. The Cost??? $2.99!!!
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