Date: Thu, 12 May 2016 22:20:03 -0400
Reply-To: Larry Alofs <lalofs@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Larry Alofs <lalofs@GMAIL.COM>
Subject: Re: Filling the coolant reservoir...
In-Reply-To: <1177330388.1688500.1463100080007.JavaMail.yahoo@mail.yahoo.com>
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Yes, I believe it does, tho I ususauly forget to check. Because the cap
lets the coolant come back in rather easily the vacuum is not very large
and it only shows up after the system is cooled down well.
Larry A.
"You may ask yourself, 'How do I work this?' "
On Thu, May 12, 2016 at 8:41 PM, Michael Magnani <mfmagnani@sbcglobal.net>
wrote:
> Hi Larry,
> Does your vacuum/boost gauge read negative pressure when you shut down and
> the engine is cooling off?
> Mike M
>
>
> On Thursday, May 12, 2016 4:49 AM, Larry Alofs <lalofs@GMAIL.COM> wrote:
>
>
> Some years ago I read a post from Frank Guntheimer (sp?) that mentioned
> that he had a coolant pressure gauge on his rig. I kept my eyes open for
> an inexpensive gauge that would tell me both pressure and vacuum. Recently
> someone suggested a "boost gauge".
>
> I found something on Amazon for a reasonable price and installed it about
> 2 months ago while I had the cooling system open for some other revisions
> anyway. (This is a '91 GL with a Subie EJ22 conversion. Cooling/heater
> system revisions are frequent)
>
> This gauge is not electrical; a small diameter nylon tube transmitts the
> info. I cut a heater hose up above the spare tire and inserted a brass
> hose coupler that I had drilled and tapped from the side to accept the
> fitting that came with the gauge kit. Using a hole saw and some careful
> Dremel work, I squeezed the gauge into the center of the cover that goes
> over the heater outlets just forward of the shift lever.
>
> It has been interesting to watch this gauge and get used to the normal
> behavior. At first the maximum pressure seemed to be about 10 or 12 psig.,
> but there may have been a little air left in the system. Now when the
> temp reaches its maximum the pressure is steady at 15 or 16.
>
> What fun,
> Larry A.
>
>
> On Thu, May 12, 2016 at 4:21 AM, Neil N <musomuso@gmail.com> wrote:
>
> > This thread is a an excellent "read" !
> >
> > Neil.
> >
> >
> >
> > --
> > Neil n
> >
> > Blog: Vanagons, Westfalia, general <http://tubaneil.blogspot.ca>
> >
> > 1988 Westy Images <https://picasaweb.google.com/musomuso/New1988Westy>
> >
> > 1981 Westfalia "Jaco" Images, technical <
> http://tubaneil.googlepages.com/>
> >
> > Vanagon-Bus VAG Gas Engine Swap Group <http://tinyurl.com/khalbay>
> >
>
>
>
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