Mailing List flyrotary@lancaironline.net Message #30603
From: James Brewer <alpha@concordnc.com>
Subject: Ed's O ring
Date: Thu, 9 Mar 2006 19:47:51 -0500
To: <flyrotary@lancaironline.net>
Guys,
Ed said: I had a fuel leak on the primary injectors.  
> The place it was leaking from was where the hose fitting connected  
> to the fuel rail.  Well, first I tighten things a bit, no good.  
> Then I replaced the AN fitting screwed into the fuel rail thinking  
> it has gotten scratched or warped - no good.  Then I ended up  
> replacing the hose side - STILL no good.  Turns out one of the top  
> O rings on one of the primary injectors was leaking, running down  
> the rail and dripping off the fittings. Aghhhh!   Two days and  
> several fittings later, replacing the O ring solved the problem.


I just had the same problem in my 87 RX7.  The O-ring in the secondary injector
was leaking just like Ed's.  When I pulled it out a piece of the O-ring was missing.
I went everywhere I could think of in this small town to find a suitable replacement
to no avail.  I ended up using one off an ebay spare fuel rail I had.   I had a box
of SAE O-rings but there wasn't one that would fit.  Word to the wise, make sure you replace
all of the injector O-rings when rebuilding.  Make sure you put some suitable lube on the
rings before installing.  I would recommend keeping a spare set in case yours leaks.  Having
to remove the intake to replace the little bugger was no fun!  Ed and I could have had a fire
due to the leak---so could you!  Be careful out there, you hear?

Jim Brewer
Albemarle, NC

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