There temaparture disks. They melt and deform if the engine is
overheated.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf
Of Ty Takashima
Sent: Friday, February 28, 2003 3:44 PM
To: vanagon@GERRY.VANAGON.COM
Subject: funny disc?

Hi
I have a question for the list, I just received a
longblock from AVP and it has these discs on each head
about the size of a dime (one also on the case) and
says "warrantee void if removed" the center is gray
and
is glued on does anyone know what the heck these are
thanks Ty
90 westy with head leaking