Nothing to snicker about Nando. I fought my rough
running 73 for a year before I changed the plugs (that
were only a year old) and solved the problem. No more
AC for me. Had a rough running Che** PU, when I
pulled the AC plugs one electrode was completely
missing. That would seem to explain the loss of
power...
Kerryp
--- Crownking <crownking62@xxxxxxxxx> wrote:
> Hello All:
>
> The incident herein intrigued me and has Imperial
> implications but
> the experience was not wholly Imperial. The long
> and short of
> it--what about a spark plug makes it a wearing part?
>
> My one year old lawnmower cut out while mowing the
> grass the tenth
> time this season. It would start once every hundred
> or so pulls but
> run for only a minute or so and badly at that. I
> cleaned the air
> filter to pristine. I tore the carb apart and
> cleaned it up although
> I was doubting old gas as a contributor since we
> have run the thing
> so much this year. The thing would not even start
> reliably on
> starting fluid. I tried it without the air cleaner
> to no avail. I
> cleaned the spark plug with carb cleaner followed by
> brake cleaner
> after filing the electrode with a teeny file and
> cleaning up the
> other side with fine sandpaper. I did not check the
> gap since I did
> not know what was correct and believed this could
> not be gap related
> since it ran some of the time. Nothing worked. I
> deduced that it
> had to be either a loose ground owing to the silly
> safety cutout or a
> bad magneto which is highly unlikely given its age.
> With Moron's
> assistance a test for spark was devised in which we
> would ground the
> plug and try to start it in a dark garage--if you
> want to amuse
> yourself just try holding a mower still enough to
> check for spark
> while pull starting it. Prior to making that
> drastic and potentially
> dangerous test, I decided to replace the plug and
> learned the correct
> gap in the process. The mower starts first time
> every time.
>
> Here is the question: Isn't a plug nothing more
> than a wire with a
> hole in it through which electrons jump thereby
> causing the necessary
> spark? What can possibly wear out on one? I
> dutifully replace my
> plugs in my cars as recommended but always feel like
> a sucker doing
> it and have never experienced any change in
> performance after having
> done so. This mower experience has opened my eyes
> though-- I wonder
> if there are a few Imperials out there pronounced
> DOA that are
> suffering from nothing more than a sick spark plug
> or two.
> Dick--what the heck should I know here? I hate it
> when the solution
> to a problem is not chemical in nature--most
> solutions are!
>
> Let the snickering begin....
>
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