'91 100q 5 injectors replaced - now car wont start

[Christopher Gharibo]

As a follow up:

the car was running before the injectors were replaced.

Spark plugs were never touched. But, there is no spark with cranking!!

The injectors seated in their shrouds and shrouds advanced to their base
without difficulty.

The timing belt and its teeth appear intact. The crankshaft and all other
accessory belts all turn fine.

How did I lose spark in all this? Thank you all for your help!



------ Original Message ------
Received: Tue, 11 Jun 2013 09:59:05 AM EDT
From: Fred Munro <munrof at sympatico.ca>
To: "'Christopher Gharibo'" <cgharibo at usa.net>,	<quattro at audifans.com>
Subject: RE: '91 100q 5 injectors replaced - now car wont start

> Chris;
> 
> If the engine is turning and is spinning as freely as you say, it sounds
> like you have no compression on any cylinders. If some cylinders had
> compression, you would hear the pulse as the engine turned over. Did you
> install the injectors and seals properly? Are the spark plugs installed?
You
> might try a compression test on every cylinder to verify compression or
lack
> thereof. 
> 
> Good luck!
> 
> Fred Munro
> '97 UrS6
> 
> -----Original Message-----
> From: quattro-bounces at audifans.com [mailto:quattro-bounces at audifans.com] On
> Behalf Of Christopher Gharibo
> Sent: Monday, June 10, 2013 10:24 PM
> To: John Larson; quattro at audifans.com
> Subject: Re: '91 100q 5 injectors replaced - now car wont start
> 
> Looked the car over again. The timing belt is intact and the engine
> definitely turns. The engine just turns smoothly and evenly without the
> usual rhythmic sounds. The sounds is one of constant, mono tone crank.
> 
> I am not sure if this is relevant, but I moved the car about 40 feet by
> engaging the started and the car in neutral.
> 
> I will check the fuel delivery some time as well. 
> 
> Thanks for your continuing help.
> 
> ------ Original Message ------
> Received: Mon, 10 Jun 2013 05:42:33 PM EDT
> From: John Larson <viejoloco at comcast.net>
> To: Christopher Gharibo <cgharibo at usa.net>
> Subject: Re: '91 100q 5 injectors replaced - now car wont start
> 
> > On 6/9/2013 4:35 PM, Christopher Gharibo wrote:
> > > I just replaced 5 injectors on my 100q, cleaned what I can and 
> > > plugged everything back in.
> > >
> > > The car now wont start. The fuel pump primes, the starter comes on 
> > > but
> the
> > > card does not make that typical, cycling, cranking sound. The 
> > > starter
> sound is
> > > now this constant spin instead of the rhythmic cranking one hears 
> > > when the
> car
> > > cranks normally. It doesn't seem like anything is firing.
> > >
> > > Any thoughts on what I an missing?
> > >
> > > Thanks.
> > >
> > >
> > I'm not clear on the "spinning" part.  Is the sound just the starter 
> > spinning, or the engine itself?  Is the speed the same as usual or 
> > substantially faster?  If it's just the starter, you have a bad 
> > starter.  If the engine is cranking too fast, or even just smoothly 
> > w/o the usual pulses, you may have a timing belt problem.  The plastic 
> > bits aren't likely to cause a problem, especially on all 5 cylinders 
> > at once.  They pulverize pretty quickly.
> > 
> > John
> 
> 
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