[alfa] Hot and cold running sparkplugs

["Jay Mackro" <jmackro@xxxxxxxxxxxx>]

A prior submission had noted:

> It all started with a burnt valve, which according to
> the mechanic (alfa mechanic) was probably caused
> by the previous owner(s) use of HOT spark plugs.

Well, that's nothing - I ran COLD spark plugs in my car once,
and the air conditioner - which hadn't worked in years - started
blowing air so cold I durn near froze my butt off.

But seriously, I don't think that running the wrong heat range
sparkplugs would result in a burned valve - I think this results
from an incorrect mixture and/or improper valve seating.  The
heat range of plugs just has to do with how hot the plug
electrode runs, which controls how effectively the plug burns
off deposits.

Jay Mackro
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