[s-cars] Pulling the head on an AAN any BTDT??

[Kurt]

I don't think so, because the timing belt is now back in the correct
postion and she is still running really rough with a considerable
amount of smoke about 5 minutes after initial cold start.  Drove the
car about 8 miles yesterday just to see if the valve might somehow
"break loose" but no such luck.  Looks like I will have to pull the
head and see what's going on.

Thanks to all for the valuable suggestions.

--K

On 10/8/05, calvinlc at earthlink.net <calvinlc at earthlink.net> wrote:
> No compression in #5.....I am wondering if the lack of compression is being
> caused by the timing belt being a few teeth off.  If the valves are hanging
> open on the compression stroke because of the bad valve timing then it's
> possible that it could show no compression with no actual physical damage.
> Probably unlikely if it is the only cylinder with a compression problem,
> though.  I would definitely check that.
> --Calvin
>
>
> -----Original Message-----
> From: s-car-list-bounces at audifans.com
> [mailto:s-car-list-bounces at audifans.com]On Behalf Of Kurt
> Sent: Thursday, October 06, 2005 10:39 AM
> To: s-car-list at audifans.com
> Subject: [s-cars] Pulling the head on an AAN any BTDT??
>
>
> Hello all...long time lurker here.
>
> I wonder if those of you who have done it can give me an idea how long
> it would/should take to pull the head on a 1993 AAN engine.  Any
> gotchas or stuff to beware of?  Anyone ever done a write up on such a
> procedure?  Car is '93 S4 with 101k miles.
>
> My mech (not a stealer)is saying that there is no compression in #5,
> apparently a stuck valve.  He estimates 11 hours and a total of
> $3000.00 USD parts/labor to fix (?)  This seems nuts to me.  Thinking
> of doing it myself.  Just had all the lifters replaced and new head
> gasket last December and now this.  I think we have a bigger problem
> here.
>
> Car was in a no start condition and determined that TB had jumped 3
> teeth.  Fixed that and car will now run but rough.  Seems the top
> tension roller is too loose, too.  It had lateral play and may have
> caused the TB to jump.  Also prior to all this had *a lot* of white
> smoke on cold starts which would go away after warm up. Car uses no
> oil, but oil, Mobil 1 15-50 is already getting sludgey after only 10
> months of new head, oil pump, etc.
>
> Suggestions welcome.
>
> Thanks,
>
> --Kurt
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