At 11:37 AM -0800 2/12/2000, Dana Morphew wrote: >I bought a cheap, unlit, 0-30psi, 1 1/2" gauge from Princess Auto for >$3. This was for my Rabbit, but it would work for a Vanagon. > >I drilled a hole into my expansion tank above the max. water level and >close enough to the tank cap to be able to fit a washer and a nut onto >the silicon caulked threads of a brass, barbed, fitting with a male >threaded end. I ran a length of hose through the firewall and attached >the ends to the barbed fitting and to the gauge, using clamps. No >coolant and only air in the line (the gauge is 'air only'). > >It shows 7psi when I climb the 1/2 mile long, 9% grade hills around here >and 5psi on the flats at 60mph. The rad. fan comes on at 10psi and >turns off at 8psi, so we are not dealing with large pressures. >-Dana- This is certainly easy enough sounding. I wonder, however, if the pressures you are observing are accurate or not. I say this because air is more easily compressed than liquids and there are 2 different states of matter here. Any chemists or physicists care to comment? Later, Dave C. Williamsburg, VA zzzzzzzzzz__ |E[__] [__]|[_]\\ | _DC&SP | _ || * * * =-( )---------( )--= '85 GL Westy (His) '91 Cabriolet (Hers) |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.