If the pressure cap is OK and the coolant system is tight on the outside
then you have to deal with the cause of combustion gasses getting into the
cooling system.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Greg Potts
Sent: Sunday, July 05, 2009 1:01 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Burps up coolant when parked warm.

Hi Volks,

Ever since I have installed the replacement 1.9 engine in my 87
wolfsburg it's been running great. But...

Once or twice a week, after running 15 minutes or more, I hear a great
deal of gurgling from the engine compartment, usually followed by a gush
of a liter or so of coolant.

What would be causing this? Air in the rad? Bad coolant resevoir cap?

The temp gauge needle consistently sits on the top edge of the LED, and
doesn't move from that spot unless I am stuck in traffic, where it might
rise a needle-width or so before the rad fan comes on.

Another thing I noticed recently... If I am parked in the sun then I
notice that the rad fan will come on at low speed as soon as I start the
ignition. This only happens when the front of the bus is warm though; it
never happens in early morning or at night.

I have a 4-hr trip tomorrow and am hoping for some peace of mind while
traveling.

Greg Potts
1973/74/79 Westfakia "Bob the Tomato"
1987 Wolfsburg Weekender Hardtop
www.busesofthecorn.com
www.pottsfamily.ca