I have gotten by nicely without using gasket sealer. I would recommend
carefully scraping and cleaning the gasket channel on the cover (careful
not to score it) first.
Re: Vanagon...it's a combination of van and station wagon.

Good luck.

Mick Owens
Space Vacuum Epitaxy Center
Office: (713)743-3626   Fax: (713)747-7724
E-mail: owens@uh.edu or svec13@jetson.uh.edu