Thread it and use a 3/8" pipe plug.

http://tinyurl.com/kvtoxok

Jim

-----Original Message-----
From: Greg Potts
Sent: Wednesday, January 08, 2014 11:32 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: [VANAGON] Ironic Vanagon sighting in Frozen Tundra

In a similar vein, my Dad's 1985 Westy blew out a cam gallery plug on
Friday, it was stupid cold out and he was running 20W50. He warmed it up
idling for 10 minutes before driving, but once it was revved up it
developed enough pressure to pop its cork.

Is there a recommended replacement for these plugs? Apparently Dad's
mechanic says they are NLA from VW.