FW: [V8] plug gap

Thu Sep 23 11:29:20 EDT 2004

 A difference of .005 is significant, especially when you consider that even
at .035 you're beyond spec.
The deposits you see may be because of the additives in gasoline.  When I
moved to Oklahoma, the deposits on my plugs changed completely.
nadj

-----Original Message-----
From: v8-bounces+kraig.nadjkovic=tinker.af.mil at audifans.com
[mailto:v8-bounces+kraig.nadjkovic=tinker.af.mil at audifans.com] On Behalf Of
dsaad at icehouse.net
Sent: Thursday, September 23, 2004 10:06 AM
To: v8 at audifans.com
Subject: [V8] plug gap

I was changing the oil and air filter last night, and decided to have a look
at the plugs. They are the OEM Bosch and have somewhere around 20+K miles on
them.
They are dry but have caked on deposits. They always look this way btw.
The center electrode is a little rounded toward the ground electrode - as
expected from a used plug but more than I would have expected for a plug
that is supposed to last 100K miles.
Normally I don't bother checking the gap because I figure the electronic
ignition does not care too much about small gap differences. The spec is
.032 and I guess they were around .040. I re-gapped to a tight .035 -
because that is the closest size I have available and now I see very
noticable improvement is both smoothness and power.
I am just wondering if anyone else has seen this much sensitivity to plug
gap?
I am going to start checking it more often.

Dave

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