At some point you need to move from speculation and wishful thinking to some
rear diagnoses.

Get an oil pressure gauge to measure it. Does not have to be an installed
gauge.  Can be used almost like a meter.

Leak down/compression test and/or combustion gas in coolant tester.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Ed Duntz
Sent: Friday, October 14, 2011 4:28 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Head gasket, cracked head, or more?

Those bubbles would be one thing, but my worry is the combination of the
bubbles (foam, really), the water in the exhaust, and the delay in the OP
light going out.

Ed

--------------------------------------------------
From: "Ken Lewis" <kdlewis@NORTHSTATE.NET>
Sent: Friday, October 14, 2011 4:16 PM
To: <vanagon@GERRY.VANAGON.COM>
Subject:      Re: Head gasket, cracked head, or more?

> FWIW;
>
> I got a lot of worrisome bubbles in the coolant reservoir after
> installing my rebuilt engine. Evidently it takes quite some time for
> them to all purge out because now it is fine.
>
> Good Luck,
> Ken
>