RE: [DML] spark plug update

["PJ Grady" <rob@xxxxxxxxxxx>]

Hello everyone, 

I wish to clarify David's remarks. When Bosch Platinum's came out in the
mid-eighty's (I think? I must be getting old!) they were touted as the next
great thing so naturally I tried them as a lower cost alternative to the
tried and true "SILBERS" (check the spelling on the box!). What I found
unfortunately was that almost a third of our subsequent tune-ups would
return within a few hundred miles with an engine miss. We stopped using
these plugs within a few months. If you want a cheaper plug than silvers the
Bosch coppers fill the bill nicely. I haven't tried the Plus Fours yet but
have a set waiting to throw in my green car. I'm just not that comfortable
trying them based on my past experience. BTW I also don't recommend Bosch
ignition wire sets as my "Daily driver" owners never seemed to get more than
a year out of them. Stick with Bougicord wires, Bosch "Silber" or "Super"
coppers, along with a Bosch cap and rotor and you'll have a combination that
has ALMOST NEVER let us down over many hundreds of DeLorean tune-ups (Never
say never:).

Sincerely,

Robert Grady

-----Original Message-----
From: David Teitelbaum [mailto:jtrealty@xxxxxxxxxxx] 
Sent: Thursday, February 12, 2004 10:59 AM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: Re: [DML] spark plug update

I guess any plug can rust. I am starting to lose confidence in Bosch
though. Rob Grady will not recomend the Bosch Platinum plugs anymore.
He said he has seen where they "blow-by" or leak between the procelin
 and the steel shell. Maybe the standard Bosch are OK, just don't let
water get into the wells and rot the plugs? The steel shell is
supposed to be plated to prevent corrosion, maybe it just is not
enough if water lays in the well for a long time. This is just another
reason to change some parts once in a while or every 20 years if you
use the car or not. No car likes to sit and not be used especailly
outdoors.
David Teitelbaum
vin 10757


--- In dmcnews@xxxxxxxxxxxxxxx, jordan rubin <nuttenschleuder@xxxx> wrote:
> the plugs are bosch that come with the car
> 
> Dave Sontos <dsontos@xxxx> wrote:Did you ever tell us the brand of
plugs that broke. I want to make sure I
> don't buy any.
> 
> > **** spark plug update.
> >
> > The final verdict is three plugs broke in the same
> > fashon and three came out. They hve been soaking in a
> > loosening oil for several days. The ones that came
> > out show no signs of chemical welding. The ones that
> > broke had verry little pressure before they snapped.
> > All plugs have some surface rust just below the nut
> > and I believe they fatigued at that point.
> 
> 
> 
> 
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