[s-cars] removing injectors/new seals

[Stott Hare]

Actually, when I had my injectors cleaned/flow matched last spring, they
were returned with new orings... which of course left me with $40 something
in injector orings which I didn't need.  You might check with whoever you
plan on using to see if they replace them.  For reference, I used Marren
Fuel Injection in CT and was very pleased with turn around time and quality
of service.

-Stott

-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com] On Behalf Of Mike Fitton
Sent: Thursday, September 11, 2008 12:40 PM
To: Erik Addy
Cc: s-car-list at audifans.com
Subject: Re: [s-cars] removing injectors/new seals

I just did this two weekends ago...made a world of difference.  The p/n 
for the seals is 035 906 149 A and you'll need 10 of them.

It's a pretty straightforward job.  Unplug the injectors, pop them out 
of the intake manifold, back off the little clips that secure them to 
the rail, and pop them out of the rail.  Note the exact orientation of 
the metal clips as I had some difficulty figuring out exactly how far 
into the rail the injectors should go before the clips go back into the 
right place.  Have rags on hand to soak up any fuel that drips out...I 
didn't go to any effort to evacuate the rail first, but it wasn't all 
that much fuel.  Be careful with the part of the injector that secures 
the o-rings, especially on the number 4 and 5 injectors.  They get 
baked, become brittle, and are prone to damage.  I recommend cutting the 
old o-rings off rather than trying to bring them over the lip intact.  
Installation is reverse of removal.  The new o-rings will be way 
tighter, so I used I few taps with a rubber mallet to seat everything 
before bolting down.  Fire it up (it'll take a few turns to fill the 
rail back up) and check for seepage.  Also, I spent some time in the 
inlet ports with rags, q-tips, and throttle cleaner...never hurts to 
clean something while you're in there.

-Cheers!
Mike

Erik Addy wrote:
> Going on vacation next week and thinking of having my injectors (mit 160k+
on them) out to be cleaned.
>
> Any tricks to removing them?  Anyone know the p/n's I would need for new
seals on reinstallation?
>
> Thanks,
> Erik
>
>
>       
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