I would return it. The only way to get bad parts off the market is to make
the suppliers eat them. Without feedback they have no need to change. 

Dennis
 

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
WILLIAM WITZ
Sent: Friday, September 27, 2013 12:06 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Expansion Tank Defect

The threads on the tank will not pull down the cap it feels like� they are
rolling when tighten them I got the same result with another new cap when I
tried to secure it. I know that it seals on the top gasket but the
mechanical action is not allowing it to pull it down without the Teflon
tape.
Bill Witz 84 Westy