[AT] plug heat?

[charlie hill]

John the heat range is indicate in the part # of most brands.  You can 
probably find the information online.  With AC Delco plugs the second 
numeral indicates the heat range with the hotter plugs having higher 
numbers.  In other words an R44T plug is hotter than an R43T plug.  The 4 
indicates the thread size with 4 meaning 14 mm.  R is for Resistor and T 
means tapered seat.

Here is a link for Autolite 
http://www.autolitesparkplugs.com/glossary.asp?kw=How+do+I+find+a+colder+or+hotter+plug?&manID=5&pt=
if that one doesn't work try this one 
http://www.autolitesparkplugs.com/faqmain.asp?mfid=5

The only thing you have to worry about is getting one that is so long that 
the tip of the plug hits the piston and that usually isn't a problem with 
tractor engines.

The Autolite plug shown for your 8N is AL437 
http://www.8ntractors.com/ford_8n_tractor_spark_plugs_183_ctg.htm

A good parts guy should be able to figure out what the you need.



--------------------------------------------------
From: "Dean VP" <deanvp at att.net>
Sent: Saturday, November 20, 2010 9:46 PM
To: "'Antique tractor email discussion group'" 
<at at lists.antique-tractor.com>
Subject: Re: [AT] plug heat?

>
> John,
>
> I have heard of people using plug anti-foul adapters with some luck to 
> reduce fowling on oil burners. I do not have personal
> experience with them.
>
>
> Dean VP
> Snohomish, WA
>
> Change occurs "when the pain of staying the same becomes greater than the 
> pain of change!"
>
> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com 
> [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of John Wilkens
> Sent: Saturday, November 20, 2010 5:57 PM
> To: at at lists.antique-tractor.com
> Subject: [AT] plug heat?
>
> Anyone know what is the hottest plug available for an 8N.  Have a
> problem with either Champ J12Y or Autolite 216 fouling in my oil burner. 
> John
>
>                    In the wide-open spaces of NE Oregon
>
>
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