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Re: [T3] running rough (update)


<x-flowed>You could test the injector to see what the spray pattern looks like. A way 
I found out to do this during my investigations of my engine problems is by 
removing the injector, not the intake manifold just the injector. I did this 
when the engine was cold so that I would not have to worry about gas fumes 
around a hot engine.

I removed the injector and then with the key on, opened the throttle. When 
you open the throttle the throttle switch (black box on the right side of 
the throttle) will cause the injectors to fire. This switch performs the 
"accelerator pump" function, and should cause the injectors to fire a total 
of 20 times from full close to full open. You should be able to hear a 
"click" from each injector as it fires.

>From my investigation on my 72, this does not cause all 4 injectors to fire, 
but only the two that were last set to fire, so if you hear a click coming 
from #1 injector and injector #2 does not fire, then swap the wires on #1 
and #2, then #2 should fire.

This should allow you to see the spray pattern of the injector, which should 
be a fine conical mist.

Drake
72 square FI
searching for a bug
San Jose, Ca


>From: orntar@att.net
>To: type3@vwtype3.org
>Subject: Re: [T3] running rough (update)
>Date: Thu, 04 Apr 2002 15:57:34 +0000
>
>Well i think i have narrowed it down. when i first start
>her up, she runs fine for a few minutes the the number 2
>injector starts to get saturated with fuel and it runs
>into the plug. thats when it starts to lope and loose
>spark to that cylinder, could it be shorting out the
>injector or the spark plug?
>
>if the injector is leaking that much fuel do i need to
>replace it or could i just fix it somehow? new injectors
>at my vw shop runs $75. it appears to be from the little
>hose mounted to the injector its self. I have not done
>the drip test from bently.
>
>nathan 1970 MT fastback
>
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