At 10:14 AM 10/1/2002, Ben McCafferty wrote: >OK, Bentley says the low pressure switch (between cyl 3 and 4) is .3 bar, or >4.4 psi. The high pressure switch (near the oil pump) is .9 bar, or 13.1 >psi. This is all on page 17.7. If that's true, my situation of 20 psi at >2000 rpm still satisfies both pressure requirements, either just above or >just below the magic 2000 rpm. I believe there are some 1.8 bar switches out there, and my understanding FWIW is that VW abandoned them because of too many "nuisance alarms" -- or cynically translated out of marketspeak they decided that customer complaints were more important than engine protection in the great scheme of things.
>However, on page 17.9, in the test procedure for the oil pressure switch, >the manual says "at 2000 rpm, pressure should be minimum 2.0 bar (29 psi)". So it should, especially if the alarm is going to go off at 1.8... <g>
>So I still feel like I'm missing something. If the requirement is 29psi, >then my oil pressure switch should be setting off the light/buzzer a LOT >earlier, because it doesn't do anything until 20 psi, and rarely at that. > >If the requirement is 4.4 or 13.1 psi, there's a ghost in the machine, >because the engine never runs below 20 psi at 2000 rpm, and usually higher >than that. Your ghost will no doubt be screwed into a hole near the oil pump. Try replacing it. david
-- David Beierl - Providence, RI http://pws.prserv.net/synergy/Vanagon/ '84 Westy "Dutiful Passage" '85 GL "Poor Relation" |
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Vanagon mail messages have been archived.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.