Hey,

Water or coolant stop flowing for a few reason... 1 is a bad rad, 2nd a bad
pump or maiting surface of this one, thermostat is another one.

And, yes, bad head gasket (inner one), HOT engine compression is leaking
into the cooling system and of course, air in = bubble = air pocket =
cavitation = too much pressure = boiling coolant = leaking cap = a lot of
problem.

So, that said, people here forgot how to test that system:
http://www.benplace.com/pressure_test.htm

So bring that sheet/page to a mechanic and have it done!!!

The bubble trick into the EX tank is good but NOt that precise!

How is your coolant consomption?

Maybe the piston wile going down is suking coolant back in???

Check the plug, that could tell you a lot also... a wet cylinder is... wet!!!

I'm just woking on a Syncro with a similar problem, i was sure the rad WAS
the problem... nop, the rad is out and was fine.

Anyway, i stoped, this guy is getting a Subaru/Vanaru anyway in a few weeks...

Cheers, Ben
http://www.benplace.com/vw2.htm

On Mon, 17 Sep 2007 09:11:37 -0700, Ed <fasteddy64@YAHOO.COM> wrote:

>I had more overheating on my 84 auto today.
>bled a bunch of air out of it again and got the temp to come down, not sure
why it is getting air in it or how.
>also the heater hoses to the rear heater core are so hot you cant touch
them and the ones to the front are cold.
>What next?
>
>Ed Maikranz
>Abilene, Texas
>84 Vanagon Auto
>1972 Riviera
>
>
>---------------------------------
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