injector's tip

[Ameer Antar]

Some injectors have the shrouds, some do not. I doubt that the motor would work properly if some of them fell off into the intake port above the valve. It would probably rattle around in there. My guess is that someone maybe replaced a few of the injectors with non-shroud type, since they're cheaper. I'm not sure if you can separate the shrouds and have it work properly after, but I doubt it. You may be able to clean the tips using some solvent and a soft cloth...although my mechanic says the seals are sensitive to certain solvents and can dry out and crack.

I don't know how long you want the car to run, but I'd really recommend replacing the whole set. You might be able to work out a deal with Rod at TPC to buy them cheaper as a set. The injectors can be tested by jumpering the fuel pump and lifting the airflow plate. I compared the spray pattern between new ones and originals on a 150k car and the difference was notable. Although the old injectors still sprayed a full cone pattern, the spray was less volume, so that would account for a gradual leaning out of the mixture as the car aged, and the need to adjust the mixture.

-Ameer

----Original Message----
Date: Thu, 09 Dec 2004 17:00:38 -0500
From: Konstantine Bogach <kbogach at comcast.net>
Subject: injector's tip
To: quattro at audifans.com
Message-ID: <41B8CB06.30401 at comcast.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Hi.
My injectors are off my 200tqa '89.   Tips are dirty.  I am thinking 
maybe I shoud  clean the tips as they have tiny holes (jets?) in them 
and I dont know if they are clogged up.  Are this tips removable?  I 
remember, when I changed injectors coulple years ago,  the old ones came 
out without tips as tips stuck in the inserts?   It seems to me that in 
my another 200tq '89 I had remove recently replaced injectors and one 
also came out without tip and I just put it back when re-installed 
injector.   But I don't remember for sure.  Besides cleaning,  it would 
be much easier to put on new viton o-rings.  After putting on 3 rings I 
feel like my fingers need a week of rehabilitation.

Thanks in advance.
Kontantin.


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