[AJD] sparkplugs- problem - failures - maintenance - new technology

[chester win]

Good Morning all.

The only comment I could add to the excellent job Duane has done in 
answer to your questions is:

I find plugs will often not fire if engines are not run for extended 
periods of time (6 mos. or more).  I speculate the high humidity in my 
NE climate is the cause.  Dampness seems to penetrate the insulators 
and possibly short them out.  Longer term may even cause internal 
rusting.  Often a good cleaning and drying will bring these plugs back 
to life.

Charlie V.  Afterthought:  Spark plugs are like men.  Not enough work 
is harmful to their health. (grin)



----Original Message----
From: astroguy at nas.com
Date: 11/16/2006 18:52 
To: <antique-johndeere at lists.antique-tractor.com>
Subj: [AJD] sparkplugs- problem - failures - maintenance - new 
technology

Seems like a lot of problems with JD tractors, comes from troublesome
sparkplugs.

So my questions are:  

1)     Why do spark plugs go bad?

2)     Why do spark plugs go bad so fast in JD tractors?

3)     Is there a way to do some kind of preventive maintenance for 
plugs?

4)     Are there new technology sparkplugs that eliminate the need to
purchaseng new plugs ever year? Bosche now produces Platinum Ir Fusion
plugs made up of platinum and Iridium.  Reading the literature, sounds 
like
a great spark plug.  

Any thoughts??

Thanks, Kreig



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