Yes, my cap has a nice pin hole leak right in the center.  Kind of wish it was one of those hard case blue ones. At first glance I thought it was one of those built in safety measures.  The more I think about that, the less sense that makes.  I'll take it into my FLAPS to see about a replacement.  thanks...given the potential damage, this coolant stuff freaks me out.

 
Steve

82 Diesel 

Weekender Package 

Seattle, WA

________________________________
 From: Scott Ohana <scottdaniel@TURBOVANS.COM>
To: vanagon@GERRY.VANAGON.COM 
Sent: Monday, July 22, 2013 10:58 PM
Subject: Re: Coolant Reservoir Boiling
 

82 Diesel Vanagons don't havethe  blue plastic pressure bottle caps..
they have a very normal conventional pressure cap ....like what American
cars used 'forever' .
Like a Stant Lever-release type cap.

many shops have a tester for those regular type pressure caps, easy to
checka cap with one.
or if it's old and tired looking anyway .....

On 7/22/2013 10:39 PM, Eric Wunrow wrote:
> If it holds temp a while... then suddenly spews out coolant when
> you're convinced it can't be that hot yet... replace the blue
> expansion tank cap.
>
> This very thing happened to me a couple months ago... and, being a
> Newbie, took me days to figure out. Several mechanics told me it was
> head gaskets. My cap wasn't holding pressure anymore, and I've come to
> learn the prior owners (2) of our bus never figured it out, but
> instead made it possible for us to buy it.  :-)
>
> Buy the German cap, Van Cafe sells them for $9.
>
>  EW
>  Eric Wunrow Pictures
>  85 S Union Blvd, #Q123
>  Lakewood, CO 80228
>
>  303. 988. 8717
>  EricWunrow.com (soon!)
>
> 
>
> On Jul 22, 2013, at 9:44 PM, Steve wrote:
>
> Dear List,
>
> It's odd that my temperature gauge wasn't showing signs of
> overheating.  First saw the leak in the back after I pulled in the
> driveway; the coolant reservoir of my 82 1.9l diesel was boiling
> over.  Checked the fuse for the fan, although i can't remember hearing
> it lately, the fuse looked good.  Not sure what the next step is.
>
> I may be looking for a silver lining--the weather in Seattle is
> amazing this time of year, usually don't get to work on this baby
> without the rain.  Feeling fortunate.
>
>
> Seattle
> 82 Diesel
>
> Weekender Package
>
> Seattle, WA
>