The test that I have been more interested in is the ability for the
cap to release pressure.  Not holding pressure is the least explosive
of possible outcomes.  I guess you can test the cap that way by
pushing it past 14 psi and see if it goes back to 14?  Or is this
risky to your cooling system?

Tom

On Sat, Sep 8, 2012 at 3:36 AM, kenneth wilford (Van-Again)
<kenwilfy@comcast.net> wrote:
> You can easily and cheaply make your own.  Just buy a hand bicycle pump
> from Walmart with a gauge on it.  Be sure it has the adapter needed to blow
> up air mattresses.  Now use this adapter with a short piece of hose to the
> nipple on your pressure cap.  Pump up the coolant system to 14 psi for the
> test.  The cap has a check valve in it that should allow you to pump up the
> pressure.  If it won't hold any pressure then replace the cap with a new
> "blau" brand one.  Other brands are junk even when new.  Now you have a
> pressure tester for probably $10 or less.  Have fun.
>
> Ken Wilford
> John 3:16
> www.vanagain.com
> On Sep 7, 2012 2:35 PM, "Travis Newhouse" <travisnewhouse@gmail.com> wrote:
>
>> Hi.  Does anyone in the San Diego area have a coolant pressure tank or
>> pressure cap adapters to use with a pressure tester?  I'd be happy to
>> rent them from someone for a couple days.  Please let me know.
>>
>> Thanks,
>> Travis Newhouse
>> Encinitas, CA
>>