Hey Frank,
  Haven't heard much from you for a while.
Good suggestion about mounting location.  I just found one from Bosch on
Amazon Prime for about $18.
  I think I'll do it, since my cooling system is drained now anyway for an
engine and radiator change.

Larry A.
 Getting cold here finally in W. Mich.

On Fri, Jan 1, 2016 at 2:51 PM, Frank Grunthaner <frankgrun@aol.com> wrote:

> Is use a mechanical boost gauge mounted into the heater cover. Works like
> a charm, showing vacuum overnight and system pressure when underway! Good
> for low coolant diagnosis and cap seal issues.
>
> Frank Grunthaner
>
> Sent from my iPhone
>
> > On Jan 1, 2016, at 10:46 AM, OlRivrRat <OlRivrRat@COMCAST.NET> wrote:
> >
> >                Larry
> >
> >        A Boost Gauge might work ~
> >
> >
> >> On 1 Jan , 2016, at 11:17 AM, Larry Alofs wrote:
> >>
> >> Once, a few years ago, someone on this list said that he had a coolant
> >> pressure gauge on his dash.. I have wanted one ever since, but have not
> run
> >> across a suitable gauge that would read a reasonable amount of both
> >> pressure and vacuum.  I would also need to find or make a suitable
> fitting
> >> to attach to the top of the radiator (banjo bolt?).  Maybe some day...
> >>
> >> Larry A.
>