[s-cars] removing injectors/new seals

[Eric Phillips]

Mike, Erik,

I took mine out and sent them to Witchhunter in Belleview, WA.  They
replaced the seals and the caps for $100 plus shipping.  In addition
to Mike's comments, I'll add these:

1.)  If you're going to open up the fuel system, why not replace the
filter?  That's right there, and an easy job.

2.)  Do NOT drop the metal clips.  Then you have to pull the tray,
etc.  Much easier to make sure you have a good grip on them.  As an
aside, I regularly pull the tray each and every time I work in the
engine bay.  I always drop a tool or fastener when I am doing work up
top, so to save myself the headache of having to pull the tray with
the wheels on the floor, I pre-empt myself.  :)

3.)  Lube the o-rings before you insert the injectors into the head.
Witchhunter said to use any petrolum-based lube, but I just used a
very, very small amount of motor oil.  Right off the dipstick,
actually.

HTH,

Eric

> Date: Thu, 11 Sep 2008 12:40:02 -0400
> From: Mike Fitton <rfitton at vt.edu>
> 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?
>>