[s-cars] Spark Plugs

[Toborg Michael (AC-SM/ESC3) *]

I just put new plugs in a few weeks ago (Bosch) and the old -most likely
original ~95k miles had some of this rust color around where the ceramic
meets the SS. There was also some strange deposit on the center
electrode where it was arcing to the ground side of the plug. Kind of
like how breaker points will get a deposit on one side...Car was and is
still running well.
MT

-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com] On Behalf Of Robert Rossato
Sent: Wednesday, September 14, 2005 10:26 AM
To: tony.curran at sympatico.ca; 'Bill Clancy'; 'matt ludwig'; '//Scar
//Scar list'
Subject: Re: [s-cars] Spark Plugs

I'll have to check again tonight when I get home, but I didn't see any
rust like discoloration on the ceramic that I recall.  Though I was
mainly looking at the electrode end.

BR

 -------------- Original message ----------------------
From: <tony.curran at sympatico.ca>
> Hey BR,
> 
> Is there any discolouration (looks like rust) on the ceramic just
above the SS 
> body? If yes, then this is the result of blow thru (plugs leaking).
> 
> There has been discussion in the past about aging plugs bring down
coils and 
> POS'.
> 
> Tony
> 96 S6
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