VW vendors sell a VDO gauge for pressure that has a small can like
sender with two electrical 'poles'...one for your existing system...the
warning light..and one to run the aftermarket gauge.

  I don't know about the Waterboxer motor but on my inline VW motor I put it
onto the sender down at the oil filter flange and it works fine.  You will
have to run a wire from back to front and what I did was use some 4-strand
trailer wiring wire...I used one strand to get the pressure sender signal,
one for my Oil temp sender and I have two left over for any other uses that
come later on.

  Don Hanson

On Fri, Apr 8, 2011 at 1:21 PM, courtney hook <courtneyhook@shaw.ca> wrote:

> Mr Squirrel,
> Do yourself a favor and buy a good quality one that is electric, NOT
> mechanical. What a nightmare running the capillary tubing for mechanical
> gauges, not to mention the lag time. I used to run a digital oil pressure
> gauge in my HP 2276cc Bug, which was very accurate and looked good too.
> Nowadays you can get them from just about any big gauge manuf. Just remember
> that the big ticket with these is consistency between readings. It's good to
> know what the gauge reads as an average of what you expect to be normal; not
> necessarily within 2 lbs. of actual pressure. If it varies markedly from
> what you expect to usually see, THEN you know something is up. Mine used to
> blink like crazy if the pressure dropped below 20psi.
> Courtney
>
>
> ----- Original Message -----
> From: Rocket J Squirrel <camping.elliott@GMAIL.COM>
> Date: Friday, April 8, 2011 1:09 pm
> Subject: I guess if I'm putting on a tencentlife oil cooler . . .
> To: vanagon@GERRY.VANAGON.COM
>
> > ...I might as well look into rigging an oil pressure gauge.
> > Anyone got a
> > handy kit or anything?
>