All the common methods of detecting gasses in the cooling system do not work until things are bad the combustion process is compromised. 

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Neil N
Sent: Monday, July 11, 2016 5:14 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Cooling system over pressurizing?

hopefully I can find a "block tester" and see if in coolant PH has changed.

Neil.

On Monday, July 11, 2016, Neil N <musomuso@gmail.com> wrote:

>
>
> I think there is a leak between a cylinder and head and that a 
> compression or exhaust stroke is over pressurizing my cooling system.
>

--
Neil n

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