It sure appears to be a microscopic crack in the head. I've watched it 
closely using a mirror to view the underside of the bolt area. I see 
coolant weeping out of the head while the bolt area appears to be dry. I 
did a BarsLeak treatment and that slowed the leak quite a bit but did not 
completely stop it. I just took a 600 mile trip and didn't lose enough 
coolant to make a difference. I'm going to try to nurse it through another 
20k miles--then I'll rebuild the heads.

To replace a head bolt, do you have to remove the head and do them all? Or 
can you fix one without removing the head?

-Mark McCulley

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>From: 	DHaynes57@aol.com[SMTP:DHaynes57@aol.com]
Sent: 	Saturday, March 23, 1996 9:18 AM

=========================================================================
Date:         
Sender:       Vanagon Mailing List <vanagon@vanagon.com>
From:         
Subject:      Re: 87: follow up on leaking head

Are you shure the head has a crack?  It is some what common for leaks to
develop under the bolt heads.  Thes can be decieving.  They can also be
easily fixed fixed by purchasing new bolts, using sealant, and installing 
to
specs.  Fel-pro "Bolt=Prep" is great for this application.  It acts as both 
a
sealant and lubricant for the threads.
Dennis.