The proper method is to get a coolant system pressure tester- with a
pump and an adapter. Pump the system up to about 15 psi and then see if
it maintains the pressure. Most leaks will be apparent quickly. If
pressure drops off and a leak is not visible, look at the heater cores
or consider a head leaking internally.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
Of mykarmann
Sent: Tuesday, January 18, 2005 12:36 PM
To: vanagon@GERRY.VANAGON.COM
Subject: coolant system pressure testing

Hello all,  I'm in the process of tracking down coolant leaks.  How many
lbs of pressure should I use?  Is there a risk of over doing it causing
damage to the head gasket?  My plan is to pressurize the system and just
watch it for a few days.  Thanks Marcus
91 carat
86 GL