Re: Another Question Regarding Spark Plugs

[LSelz@aol.com]

Bob -

I think that cleaning spark plugs kind of went along with repairing TV sets 
and knurling pistons.  At the cost of a piston today, who in the world would 
ever take the trouble to "knurl" one and put it back in an engine in that 
condition?, but it used to be common practice.  

Labor used to be cheap compared to the cost to manufacture, when it was ALL 
done by hand.  Now that manufacturing is mostly automated, but repair labor 
is done by hand still, it's hardly worthwhile to repair ANYTHING anymore....

                                   Lannis