A couple clarifications for injectors

[Kunz, Bob]

OK, I'm in the middle of trying to get the injectors out of my KZ engine. I have applied lots of force using the special injector tool and various levers and am unable to get any injector to come out. This is on a 23 year old with 160K miles.

I'm assuming that the larger o-ring is so hard that it will not compress enough to allow me to get them out. The injectors spin freely using a wrench; they can be wiggled side to side, but applying force to pull them out simply doesn't work. I am trying to figure out how to soften the original o-ring which I assume is rubber (new are vitron). I have some dimethyl chloride brushed into the area to see if that softens things up. Next is to apply local hair dryer heat to see if that makes a difference.

Anybody got any other ideas?

BTW, the new injectors as others have noted fit easily by hand into the new brass inserts and come out by hand. I'm at a loss as to how to proceed.

--bob

'86 5Ks avant
'02 TTQR
'07 Q7

-----Original Message-----
From: quattro-bounces at audifans.com [mailto:quattro-bounces at audifans.com] On Behalf Of Al Streicher
Sent: Thursday, November 20, 2008 3:26 AM
To: Dave Yentema; quattro at audifans.com
Subject: RE: A couple clarifications for injectors

You may or may not need the CIS injector tool. All of my shroud/injectors
all pulled out very easily. Yours may not, they may break, so go slow and
use the tool if you need. You might put a rag around the injector you are
working on, so little pieces don't fall where they shouldn't be.

Go here for more info
http://www.sjmautotechnik.com/trouble_shooting/injector.html#inject

Huw's site great pics and info
http://www.humanspeakers.com/audi/injectors-90.htm

I had to use a Dremel to cut, lengthwise, the air shrouds off. The injector
would not pull out.
When you remove an injector assy, stuff a clean rag into the opening.

Al

-----Original Message-----
From: quattro-bounces at audifans.com
[mailto:quattro-bounces at audifans.com]On Behalf Of Dave Yentema
Sent: Wednesday, November 19, 2008 3:41 PM
To: quattro at audifans.com
Subject: A couple clarifications for injectors


well, my injector seals and air shrouds came in yesterday, And i'm getting
ready to do this job. I've got the cis injector tool for a little bit of
help pulling what I think are my original injectors. I'm looking for a
little bit of procedures/guidance and maybe some encouragement for not
dropping the shoruds into my head.

Whatdya say?

-Dave
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