<VV> Anti seize on spark plugs

[Robert K. Henry]

Are we talking about a product like Champion 2612, which is intended for
spark plugs? Or a product like Permatex 133K, which I used to assemble the
Corvair engine, among other things. While I've found they work well in these
applications, I'm not sure how well they would substitute for each other.
The Champion product contains graphite, which is why you're advised to avoid
getting it on the electrodes, and I understand it also contains mica to help
heat transfer. I'm not sure what's in the Permatex. I think I read someplace
that it had lead it or something. It seems to cling tenaciously and inhibit
corrosion, so I sometimes use it to assemble things that I hope to
eventually disassemble without a cold chisel, in addition to its use on
bolts in delicate aluminum castings.

However, I've avoided the 2612 on the Corvair since the Chevy manual says to
not use anti-seize. Maybe they were thinking of something like 133K instead
of 2612?

Robert Henry
Knoxville, TN
'65 Corsa Convertible Turbo

-----Original Message-----
From: virtualvairs-bounces at corvair.org
[mailto:virtualvairs-bounces at corvair.org] On Behalf Of Mark Durham
Sent: Monday, March 18, 2013 2:32 PM
To: Clark Hartzel; Virtual Vairs
Subject: Re: <VV> Anti seize on spark plugs

Or, if you have problems with this, just change the heat range.
Personally, being an aircraft mechanic who hates putting thread inserts in
air cooled engine cylinders, I have used anti-seize since 1973 and never
have had a dead spark plug and never had indication of needing to change
heat ranges from its use. Used sparingly, it does its job and transfers heat
just fine.
Mark Durham

Sent from my Windows Phone
From: Clark Hartzel
Sent: 3/18/2013 4:54
To: Virtual Vairs
Subject: <VV> Anti seize on spark plugs
Everyone is missing the real reason for not using anti seize.  The plug
transfers heat thru the threads to the cylinder head.  that's why you have
different heat ranges on spark plugs.  The heat range is the ability to
transfer heat from the red hot plug to the head which is cooled.  You
shouldn't use anti seize as it gums up the metal to metal contact.
Clark Hartzel