[s-cars] Spark Plugs

[Robert Rossato]

I noted the same deposits on the center electrode of my plugs - sort of micro globulets of metal - but no different than what I've seen on plugs with fairly low mileage.

Bob

 -------------- Original message ----------------------
From: "Toborg Michael (AC-SM/ESC3) *" <Michael.Toborg at us.bosch.com>
> 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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> 
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