[s-cars] RE: Catastrophic Engine Stoppage

Serge Filanovsky s6serge at verizon.net
Sat Jul 3 15:35:58 EDT 2004

Ouch, sorry to hear that. There seems to be a rash of this phenomenon in the
last few months. I was at 68,xxx on a 95.5 and decided I could go no longer
without doing the T-belt service. I took the car in, lost a coil pack on the
way to the mechanic and he sheared the key on the crank pulley off doing the
T-belt. But my car is officially cursed, and I don't think Ed took the curse
off judging by recent events. Good luck with your situation, hope the short
block is ok.


I may be the first for pistons but I hope not!  I tore the front end out and
found that the crank gear had self-destructed!?!  Apparently, something must
have caused the gear to explode?  So far no piece is greater than one inch.
Also, the belt tensioner was not loose nor was there any damage/wear on the
serpentine belt.  The last belt service was done 3 years and 40K miles ago
and both the timing and serp belt showed no wear.   Of course, the crank
bolt is tight.  Could the damper to crank gear bolts have come loose and
caused this?  I'll have to get a tool to get the damper off and then assess
the damage to the end of the crankshaft, etc.
Anybody in Chicago have one for borrowing this weekend?  Ribs on the Fourth.
I'll probably also yank off the head to see what damage there is.
Interestingly, the head had stopped in a position where turning over the
enginge did not hit pistons.  Moving it's cam position a bit caused it to
then be in interference.  Or maybe whatever would interfere is already bent
over.  Oh well!
In a message dated 7/3/2004 12:23:49 AM Central Daylight Time,
s6serge at verizon.net writes:
There is no easy way to say this, but these are interference fit motors. If
timing between cam and crank is compromised, valves will come into contact
with the pistons almost always resulting in at least a rebuild for the head.
I have not heard of a case where enough damage was done to the piston to
warrant its replacement.

I really hope I am wrong somehow in your case.

Serge Filanovsky

95.5 S6 Avant
95 S6 Avant SOLD

You mean how loose is loose?  Just prying the cam belt cover away I can see
that cam belt can go around the gear without even touching it.  Over the
weekend I'll disassemble the front to get the cover off and hopefully
nothing will be binding but who knows?  When this happened I noticed no
noises or anything binding.


In a message dated 7/2/2004 9:56:12 PM Central Daylight Time,
s6serge at verizon.net writes:
Exactly how loose is totally loose? Like does the timing belt move/skip

Valves and pistons sitting in a tree...?

Serge Filanovsky

95.5 S6 Avant
95 S6 Avant SOLD

> More info:
> Tonight when I was poking around my engine I noticed that my timing belt is
> totally loose.  Tensioner gave out?  Firetruck!  Belt was changed for the PO 3
> years ago by a "fine" Denver repair shop.
> For those that have been there and done that how much is this fun going to
> cost me?  I know how to twist a wrench but I do not have a lot of free time.
> Luckily I have three cars.
> Mark


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