[s-cars] Gack! No compression, no start,

[Szarka Strubachincoscow]

TB is intact and turning.  It is time to replace, but right now it's ok.

Thanks.


On Thu, 4 Nov 2004 23:00:32 -0700, calvinlc at earthlink.net
<calvinlc at earthlink.net> wrote:
> Is the timimng belt intact?  The valves could be not closing because the camshaft isn't turning.  I would think this would cause more problems than what you are seeing, i.e. contact with valves, but just a thought.
> 
> --Calvin
> 
> 
> 
> 
> -----Original Message-----
> From: s-car-list-bounces at audifans.com
> [mailto:s-car-list-bounces at audifans.com]On Behalf Of Szarka
> Strubachincoscow
> Sent: Thursday, November 04, 2004 4:34 PM
> To: s-car-list at audifans.com
> Subject: [s-cars] Gack! No compression, no start,
> 
> Really weird situation here…some of you may recall my post from last
> month talking about my non-starting 1993 S4 with only 90k miles.
> Well, it STILL won't start.  Drove car on 600-mile trip, parked for
> one day then tried to start—no go. On attempted start engine turns
> over, belts turn, have spark, have fuel, no ECU codes showing except
> 2112—which is because the engine is not running.  All sensors and
> injectors pass the "click" test when ECU is put into test mode.
> 
> It sounds like it has no compression when turning over.  Today, my
> mech confirmed that it *doesn't* have ANY compression in ANY cylinder!
> He pulled the valve cover and discovered that everything is
> completely sludged up.  He pulled the oil drain plug and just a
> trickle came out, even though it is only about a quart low.  It sounds
> like a car that hasn't had an oil change in 30,000 miles, but it
> isn't.  I've always run Mobil 1 15-50.  It was overdue for a
> change—about 6000 miles since last oil change--but this seems nuts!
> The mech says he's never seen anything like it—neither have I.  He is
> theorizing that the valve lifters are so clogged with sludge that all
> the valves are remaining open, hence the 0 compression.  Anyone have a
> better theory, or seen anything like this before?
> 
> Since we can't start it I don't know of any way to clean out the
> sludge.  If it was running I could put some light oil/ATF in the
> system and run at idle for a while to try to flush things out, but
> with no pressure how can I flush it?  8-[  Is Mobil 1 the culprit
> here?
> 
> Any BTDT or suggestions greatly appreciated.
> 
> Thanks,
> 
> --Sz
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