One item to add:
Do NOT run Platinum Plugs with either a Jacobs or MSD system. Both
companies do not recommend this at all.
- Bernd
----- Original Message -----
From: "Bob Tom" <tigers@bserv.com>
To: <dakota-truck@buffnet.net>
Sent: Tuesday, July 25, 2000 7:46 AM
Subject: Re: DML: Autolite Platnuims & Ping
> Hi, Erika
>
> At 05:07 AM 7/25/00 GMT, you wrote:
> >My truck WAS running really well with the Autolite plugs. Smoothed out
the
> >rough idle, and the truck quit missing going down the road.... They have
> >been in for about 3 - 4 weeks now, and I actually heard the truck start
to
> >ping again. I could barely hear it, and I don't hear it often, but that
damn
> >ping is back. So I guess now I will just try the regular copper plugs and
> >see if that helps.
>
> Try the 3923 reg. copper Autolite plugs and set gap to 0.040" for
starters.
>
> >Anyone have any ideas why just a simple plug might bring back the ping?
> >Think a Jacobson or MSD Ignition would help, or make it worse? When they
> >reflashed my computer, they supposedly retarded the time 4 degrees. But
the
> >truck ran to well, so I have a feeling they did more... but what I don't
> >know.
>
> The heat range of your plugs may be just at the borderline for your motor.
> The 3923s are one range colder (dissipates the heat away from the tips
> thus helps to reduce pinging but, if most of driving is stop and go, the
> tips may begin to foul up ... does not get hot enough to burn off
> deposits ... a couple hard accelerations or driving at hiway
> speeds for a bit should burn off these deposits). If pinging still
persists,
> you could try 3922s (two ranges colder).
>
> Hope this helps.
>
> Bob
>
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