The way I read the original question posted, I thought he was looking for a
way to test the CAP.
  For this I use an old patched-up expansion tank, with the necessary plugs
and hoses to attach a bicycle pump and pressure gauge.

Larry A.

On Wed, Feb 27, 2008 at 8:24 AM, B Monk <wmonk@snet.net> wrote:

> NAPA sells and adapter for the vw for about 20.00 if I recall. Mighty
> Might also makes
>  a universal tester that is a rubber expansion plug that hooks up to the
> universal on the
>  pressure tester. I may have a couple of these still new in the box I
> bought last year in
>  a autopart buyout. Zoltan pmail me if you want one.
>
>  Bill
>
> Ken Wilford <kenwilfy@COMCAST.NET> wrote:
>  Zoltan, I have a Sears coolant system pressure tester that I bought
> several years ago as an open box for around $35. Even though it came
> with several different adapters for all kinds of bottles and radiators I
> had to make an adapter for it to work on a Vanagon. The tester is
> basically a hand air pump with a gauge hooked up to a hose that you then
> attach to the adapter to pressurize the system. You can make your own
> that would be just as good with a bike pump from Walmart. Use the
> adapter that comes with it that is like a funnel and hook this up to a
> piece of 7mm hose. Push the hose onto the nipple of the pressure cap on
> the expansion tank. Voila! Instant coolant system pressure tester that
> can also be used as a bike pump, pump up your kids footballs, etc. That
> is what I would do if I had to buy another one in the future.
>
> Just my opinion,
> Ken Wilford
> John 3:16
> www.vanagain.com
>
> PS I mentioned doing this in a recent newsletter I sent out. Several
> guys on that list already have made their own testers. Maybe you should
> join the list and get in on some of this inside info :-)
> You can check it out here:
> http://www.vanagain.com/newsletter.htm
>
> Zoltan Kuthy wrote:
> > Hi guys,
> > I would like to buy a pressure tester with an attachment to testing the
> cap. Anyone knows the best one and could direct me to it?
> > Zoltan
> >
> >
> >
>