[s-cars] I got the dreaded call from the wife yesterday

[Tom Mullane]

$2-4k sounds like a lot of money for some gaskets and valves.  Figure $1k.

When the belt breaks, the cam stops, and whatever valves are open take
a beating, but when the belt jumps, the cam continues turning with the
crank, just a little late.  A little late means that the exhaust
valves are still open when the piston gets to the top of the exhaust
stroke.

Tom

On Mon, Aug 17, 2009 at 7:15 PM, Rich Dauenhauer<rdauenhauer at yahoo.com> wrote:
> Tom nailed it. How it got behind the cam belt cover ??? but that is exactly
> what happened I found once tearing down the front end. O compression in all
> holes! :(
> Tom what makes you think EX valves are also bent? Past experience? She still
> claims this was low speed. so now the dilemma ...to fix or not. 2-4K when
> all done approaches the value of the car. at this point wouldn't  I be
> better of with a replacement motor?
>
> --- On Mon, 8/17/09, Tom Mullane <tmullane at gmail.com> wrote:
>
> From: Tom Mullane <tmullane at gmail.com>
> Subject: RE: I got the dreaded call from the wife yesterday
> To: rdauenhauer at yahoo.com
> Cc: s-car-list at audifans.com
> Date: Monday, August 17, 2009, 1:45 PM
>
> As much as I hate to throw a wet blanket on this, I suspect that at
> least some of the exhaust valves are bent.
>
> When the serp belt shreads, it can get twisted behind the crank pulley
> and displace the belt.  I'm pretty sure that is why the car stopped.
> I'd use the tool, but I'd just toss a belt only on the car and do a
> leak down test.  I doubt that a simple timing belt is going to fix
> this one.
>
> Tom
>
>
>
>
> Message: 1
> Date: Sat, 15 Aug 2009 17:42:59 -0700 (PDT)
> From: Rich Dauenhauer <rdauenhauer at yahoo.com>
> Subject: Re: [s-cars] S-CAR-List Digest, Vol 70, Issue 28
> To: s-car-list at audifans.com
> Message-ID: <128951.39844.qm at web112515.mail.gq1.yahoo.com>
> Content-Type: text/plain; charset=iso-8859-1
>
> Greetings all well I got the dreaded call from the wife yesterday: "
> The car started making this funny noise then just quit".? Further
> protracted inquiry revealed that she heard a plastic scraping noise
> for a MILE or TWO beforehand. Worst fears were confirmed when she
> described belt material tangled around the front shroud and fan area.
> Knowing the car (95.5 S6 Avant) is an interference motor? I started
> drinking immediately and instructed her to call AAA and get it back to
> the house.
> On my way home I picked up a Timing belt anticipating at least a
> leakdown to determine if valve/piston smackage was going to put damper
> on the WE and severe dent in my wallet.
>
> This morn I started tearing into it and first off the Serp. belt had let go
> ..
> Pulling the upper Cam gear cvr I expected to find the wort but was
> relieved to find the timing belt intact....barely! It was chewed to
> sh*t but looks to have survived??
>
> So the question: Can I do the belt replacements w/o the special tools
> outlined in the Bentley? How?
>
> Thanks
> Rich ?
>
>