[s-cars] welcome to my nitemare

[QSHIPQ at aol.com]

This is pretty common in S cars, actually in 5000/200's before them...  The
problem appears to be the locking compound on those threads really makes the
bolt stubborn coming out.  So much so that many times the locking tool will
sheer the cast keyway.  A close inspection of the keyway is in order when the
timing belt service is done.  I'm not sure this is a replace every time part if
it's inspected.  If you want to go that route, I'd suggest changing the 4 allen
bolts and torquing them to spec as well.   The problem appears to be looking
at the back of the pully.  From what I read below, I'd guess that the last TB
already sheered or deformed that key, and that the installer just lined up the
hash mark on the front cover without inspection.  This usually manifests
itself with a spin sometime down the road, especially if the crank bolt was reused
and stretched a bit...  BTST.

The part that I WOULD routinely replace is the crank bolt.  Audi specifies
this, and for good reason, it definitely stretches on install.  I have one in my
shop that failed, luckily I felt it getting weak and when it let go, it still
had enough attached to the sheer to back it out.  The bolt is 12USD and is
available at the parts counter.

HTH

Scott Justusson
QSHIPQ Performance Tuning
In a message dated 10/7/2003 7:30:01 AM Central Daylight Time,
strangconst at rogers.com writes:
Just did my timing belt on the 93' CAD S4.
Part of the procedure was to replace this pulley and the cranks seal while
we where in there.
The parts aren't that much, at not compared to the cost of head work, for
the car that is !!!

Mark S
----- Original Message -----
From: "Bjørn Ødegård" <beernuts at online.no>
To: "* S List" <s-car-list at audifans.com>
Sent: Tuesday, October 07, 2003 1:53 AM
Subject: Re: [s-cars] welcome to my nitemare


Or just glued the pulley back on, since the woodruff key was missing? My
pulley was about 5deg. off due to this condition, and i thank the gods
(anyone..) that the pulley hadn't moved ! Well, even if it was glued on,
it was a piece of cake removing it, and thanks to Joern, (Thanks
again!!) I got a new toothed pulley so I could replace it while I was in
there. It should really be on the partslist for the job, because the key
is pretty brittle and will be worn or shot on most cars.

Bjorn :o)
'92 S4

----- Original Message -----
From: "Russ Panneton" <russ at s-cars.org>
To: <MILAMBERB at aol.com>
Cc: "* S List" <s-car-list at audifans.com>
Sent: Saturday, October 04, 2003 8:31 PM
Subject: Re: [s-cars] welcome to my nitemare


> I wonder if whoever replaced the timing belt last used the crank
locking
> tool when they R&R-ed the crank pulley bolt...
>
> Russ
> 95.5 S6
>
> MILAMBERB at aol.com wrote:
>
> >Had a major problem this week. I was following a sh*tty driver doing
about 20
> >in a 45. They pulled of and I got on it through 2nd and 3rd. All of a
sudden
> >the car bucks and the check engine light. Five seconds later all the
lights
> >come on and the car shuts off at speed. Luckily I was able to coast
to the
> >firehouse were I am a member (GLVFC). Let the car sit then come out
to start it.
> >Wissss. Hum it sounds like the starter is free spinning. Timing belt
is on and
> >tight (only has 20k on it) so what is the problem.........the crank
pully spun
> >on the shaft. What a nitemare. I'm thinking between 2-8 bent valves.
The funny
> >thing is was that I ran the codes only 4411 injector #1 came up. So
glad I
> >already sold my beater cars and left myself with only the ZX7R.
> >