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

Fri Jul 5 18:21:44 PDT 2013

I don't like using starting fluid- it is obviously highly explosive, but
there is such a thing as being too volatile. I've had several long time
mechanics recommend gum cutter instead- works just fine in everything I've
tried it on, and not as hazardous.

Good luck- there are a bunch of us cheering you on from the cheap seats ;-)

Steve

On Fri, Jul 5, 2013 at 7:54 PM, Christopher Gharibo <cgharibo at usa.net>wrote:

> The oil has clearly thinned, probably from fuel. I misspoke. I am
> beginning think cylinder walls being washed down w fuel is the culprit.
>
> The engine is now making closer-to-normal sounds as opposed to free
> spinning.
>
> I will buy starting fluid. Exactly how much oil should I put down each
> plug hole. I don't know how to recognize fouled plugs. I am considering
> replacing the plugs as well.
>
> Thank you for the help.
>
> On Jul 5, 2013, at 7:38 PM, Grant Lenahan <glenahan at vfemail.net> wrote:
>
> > Agre with everything here.  Thinning of oil from cranking is so
> impossible!
> >
> > Oil thins from heat and you have almost none
> >
> > Grant
> > On Jul 5, 2013, at 7:06 PM, Cody Forbes wrote:
> >
> >> Normally I would approach this much more carefully, but since you
> already cranked it quite a lot if damage were to be done it already would
> have happened. Since it sputtered and now sounds like its pumping I'm still
> sucking with dry cylinder walls. Maybe the mechanic lied about testing with
> some oil or maybe he didn't use enough, who knows. This is the thing that
> makes the most sense by far on an engine that ran fine, then sat for a
> while, and suddenly has low compression.
> >>
> >> I say charge the battery and try starting again. Do give the starter a
> rest between attempts so it can cool off. Some ether/starting fluid may be
> a good idea to get it to fire up long enough to build oil pressure.
> >>
> >> Oil won't "thin out" from lots of cranking. If the engine is dumping
> tons of fuel in that would thin it out, but if it sputtered that is
> unlikely to have occurred because the plugs would be fouled long before the
> oil thinned. Change the oil after you get it running.
> >>
> >> -Cody Forbes (mobile)
> >>
> >> On Jul 5, 2013, at 5:04 PM, "Christopher Gharibo" <cgharibo at usa.net>
> wrote:
> >>
> >>> The distributor rotor is turning with the engine. There are sparks in
> the
> >>> distributor cap while the engine is turning.
> >>>
> >>> I put the distributor cap back and proceeded to perform extended
> cranking.
> >>> After about a minute or two the engine started to catch and crank semi
> normal
> >>> but did not start. The engine literally started to make pumping
> sounds. By
> >>> this time, the battery was almost dead and is now recharging.
> >>>
> >>> The oil level is fine but I think it has thinned quite a bit from all
> the
> >>> cranking. What should I do now? Will the thinned oil be a problem?
> Should I
> >>> put thick oil in there?
> >>>
> >>> I am excited. Thanks.
> >>>
> >>> ------ Original Message ------
> >>> Received: Fri, 05 Jul 2013 03:15:46 PM EDT
> >>> From: "John Lagnese" <jlagnese at massed.net>
> >>> To: "'Christopher Gharibo'" <cgharibo at usa.net>,    <
> quattro at audifans.com>
> >>> Subject: RE: '91 100q 5 injectors replaced - now car wont start
> >>>
> >>>> Check the rotor first, then do a compression check.
> >>>>
> >>>> -----Original Message-----
> >>>> From: quattro-bounces at audifans.com [mailto:
> quattro-bounces at audifans.com] On
> >>>> Behalf Of Christopher Gharibo
> >>>> Sent: Friday, July 05, 2013 10:39 AM
> >>>> To: quattro at audifans.com
> >>>> Subject: Re: '91 100q 5 injectors replaced - now car wont start
> >>>>
> >>>> I just got the 100q towed back to me. This is my opportunity to learn
> the
> >>>> inner-workings of the engine.
> >>>>
> >>>> It's upsetting that local repair shops do not take my '91 audis (CQ &
> 100q)
> >>>> seriously. They're in great shape. I hope doctors don't behave this
> way to
> >>>> their older patients.
> >>>>
> >>>> I will report back and thanks to everyone.
> >>>>
> >>>> ------ Original Message ------
> >>>> Received: Wed, 03 Jul 2013 09:25:10 AM EDT
> >>>> From: Joshua Van Tol <josh at spiny.com>
> >>>> To: Christopher Gharibo <cgharibo at usa.net>Cc: Quattro List
> >>>> <quattro at audifans.com>
> >>>> Subject: Re: '91 100q 5 injectors replaced - now car wont start
> >>>>
> >>>>> Christopher,
> >>>>>
> >>>>> Something that happened to me a long time ago is nagging at my
> memory.
> >>>>> Since others have pointed out that this is a non-interference
> engine, the
> >>>>> problem basically has to be one of these things:
> >>>>>
> >>>>> 1.) The cam/crank timing is off. This could be caused by a broken
> keyway
> >>>> on
> >>>>> the crank gear. This isn't likely, but possible.
> >>>>> 2.) You have debris from the injector shrouds caught in several
> intake
> >>>>> valves. This should eventually clear with extended cranking as the
> bits
> >>>> and
> >>>>> pieces get mashed up.
> >>>>> 3.) Last but not least (this is the one that happened to me) the
> >>> hydraulic
> >>>>> lifters could have bled down. This will result in the valves not
> opening..
> >>>>> When this happened to me, the car sat for a month with the nose up.
> >>>>> Something about this allowed the lifters to bleed down. I had to
> crank it
> >>>>> forever to get it to start, before it started, and for several
> minutes of
> >>>>> cranking it had no compression. Compression gradually returned, it
> fired
> >>>> on
> >>>>> a few cylinders, and then ran, with lots of lifter noise. It took 20
> >>>>> minutes or more to get the lifters re-primed. On that note, the car
> does
> >>>>> have oil in it right? Because if you drained it and forgot to
> replace it,
> >>>>> then there would be no oil to be pumped into the lifters to re-prime
> >>> them.
> >>>>>
> >>>>> My suggestion: Check the oil, make sure the battery is fully
> charged, and
> >>>>> crank the heck out of it, you should probably pull the fuel pump
> relay so
> >>>>> you don't foul the plugs. See if anything changes. If that doesn't
> work,
> >>>>> pull the valve cover, and see if the lifters are mushy, and report
> back
> >>> to
> >>>>> the list.
> >>>>>
> >>>>> I hope this is helpful to you. I really think this is a simple fix,
> as
> >>>>> others have opined.
> >>>>>
> >>>>>
> >>>>> On Wed, Jul 3, 2013 at 5:24 AM, Christopher Gharibo
> >>>> <cgharibo at usa.net>wrote:
> >>>>>
> >>>>>> Huw,
> >>>>>>
> >>>>>> My mechanic wants the car to go away. No doubt.
> >>>>>>
> >>>>>> I am getting the car towed back to me and haven't given up. This
> was a
> >>>>>> great no-worry car for errands.
> >>>>>>
> >>>>>> I lack knowledge and experience re many of the suggestions.
> >>>> Nevertheless,
> >>>>>> I will go through many of the suggestions and report back with
> >>> hopefully
> >>>>>> the culprit and the good news.
> >>>>>>
> >>>>>>
> >>>>>> Begin forwarded message:
> >>>>>>
> >>>>>>> From: quattro-request at audifans.com
> >>>>>>> Date: July 3, 2013, 12:03:56 AM EDT
> >>>>>>> To: quattro at audifans.com
> >>>>>>> Subject: quattro Digest, Vol 117, Issue 6
> >>>>>>> Reply-To: quattro at audifans.com
> >>>>>>>
> >>>>>>> Message: 5
> >>>>>>> Date: Tue, 02 Jul 2013 22:03:25 -0400
> >>>>>>> From: Huw Powell <audi at humanspeakers.com>
> >>>>>>> To: quattro at audifans.com
> >>>>>>> Subject: Re: '91 100q 5 injectors replaced - now car wont start
> >>>>>>> Message-ID: <51D3866D.4060003 at humanspeakers.com>
> >>>>>>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>> On 7/2/2013 8:16 PM, Christopher Gharibo wrote:
> >>>>>>>> I am thinking about going through the injector installation and
> the
> >>>>>>>> suggestions again. This car was running little rough, stalling at
> >>>> idle,
> >>>>>> but
> >>>>>>>> otherwise running fine before it underwent the injector
> replacement.
> >>>>>>>>
> >>>>>>>> Can a poor seal between the injector-shroud or the shroud-engine
> >>>> cause
> >>>>>> loss of
> >>>>>>>> compression on a particular cylinder and loss of cranking cycle?
> >>>>>>>
> >>>>>>> No.
> >>>>>>>
> >>>>>>> Your mechanic is either incompetent or simply wants this car to go
> >>>> away.
> >>>>>> _______________________________________________
> >>>>>> quattro mailing list
> >>>>>> http://www.audifans.com/mailman/listinfo/quattro
> >>>>>> http://www.audifans.com/kb/List_information
> >>>>
> >>>>
> >>>> _______________________________________________
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> >>>
> >>>
> >>>
> >>>
> >>> _______________________________________________
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