Date:         Wed, 7 Sep 2005 16:01:25 -0400
Reply-To:     Roger Sisler <rogersisler2000@YAHOO.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Roger Sisler <rogersisler2000@YAHOO.COM>
Subject:      Re: overheating issues

Remove the spare tire from the carrier. this will give you better air
circulation around the radiater. The "bubbeling out the over flow tank" has
me uneasy from here. A leaking copper sealing ring can let exhaust into the
cooling system as a frothy foam and allow overheating. This must be
eliminated as a suspect. Remove about 1 qt of coolant in the expansion
tank , to allow room for the foam in this tank,as opposed to the overflow
tank.Now you can have a service station  stick a emissions testing wand
inside the tank and check for carbon monoxide, or you can do this yourself.
Type in carbon monoxide into the archives(7/05) and there is a test there
with a  common household carbon monoxide detector that may let you do this
yourself. If you find exhaust in the cooling system, I think you can
disconect one spark plug wire at a time to see which cylinder is the
culpret.