Cleaning Spark Plugs

[donmathis@lucent.com]

I take my spark plugs out before a long trip and clean them using a
motorized wire brush.  It does a great job.  However, I "feel" like the
cleaned spark plugs eventually don't do as well as new plugs.  Granted, I
can't clean down inside of the plug but is this a problem.  How many times
should you clean the plugs before throwing them away and putting in new
ones.  (I hate it when my Scottish heritage shows)

Don Mathis,Ph.D.
LUCENT TECHNOLOGIES
donmathis@lucent.com
'61 MGA     '37 Bentley