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Re: good plug goes bad??- all the time

To: SPL311RDST@aol.com
Subject: Re: good plug goes bad??- all the time
From: Vicki Burrows <gregnvicki@earthlink.net>
Date: Mon, 13 May 2002 21:00:08 -0700
Last year on the way to Shasta I blew the electrodes out of two Autolite 
plugs...
I mean, blew them out... gone!  The "gap" was almost a quarter inch.  However,
with the Jacobs Pro-street I run, the car ran fine around town... just when I 
got
to freeway speeds it would start overheating and having problems.  Switched to
NGKs and wide-gapped them (for the Jacobs)... no problems!
Greg Burrows

SPL311RDST@aol.com wrote:

> In a message dated 5/12/02 10:24:48 PM US Mountain Standard Time,
> jdg1@ix.netcom.com writes:
>
> > I've never had a problem with NGK nor have I heard of a sparkplug going bad
> > in this fashion. Anyone have a similar experience?
>
>  Yup - happens all the time. The worst culprits were the Autolite plugs -
> seen many of them practically falling apart - right outta the box. They can
> look good on the outside, but be trash on the inside. (Funny - same company
> does Fram oil filters - seen too many of them rattle around inside - right
> outta the box too - QC anyone ???)
>
> Let's do some fun math.....
> If you think about it - it's a wonder they work at all... let's say you're
> running @ 4000RPM - each spark plug would be firing 500 x / min - thats
> roughly 8 x/ sec - in a filthy, high-pressure atmosphere. Add that to the
> fact that most older cars are tuned overly rich and have somewhat worn rings.
>  Lets say you do 10,000 freeway miles per year - thats somewhere in the
> nieghborhood of 5 million precise "sparks" needed between annual plug change.
> Let's see YOU hold up like that !  <G>
>
> Laurie :-)
> 70 SPL311
> AzROC
> Chandler, AZ
>
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