Vanagon EuroVan
Previous messageNext messagePrevious in topicNext in topicPrevious by same authorNext by same authorPrevious page (July 2016, week 3)Back to main VANAGON pageJoin or leave VANAGON (or change settings)ReplyPost a new messageSearchProportional fontNon-proportional font
Date:         Thu, 21 Jul 2016 23:00:39 -0400
Reply-To:     Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject:      Re: 1991 Carat - the drama continues
Comments: To: Larry Alofs <lalofs@GMAIL.COM>
In-Reply-To:  <CA+r=JhqRYKpy2Bj8=9gQpG9m0qZM+b+PbLONoS6ffkApXu=_dA@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"

You can also use a voltmeter connected with the actual circuit and test the complete system.

Dennis

-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Larry Alofs Sent: Thursday, July 21, 2016 8:12 PM To: vanagon@GERRY.VANAGON.COM Subject: Re: 1991 Carat - the drama continues

You can test switches like these with an ohmmeter, a bicycle pump, and a pressure gauge.

Larry A.

On Thu, Jul 21, 2016 at 7:55 PM, Dennis Haynes <d23haynes57@hotmail.com> wrote:

> It would be very rare for an oil pressure switch to completely fail > out of the box. I've seen them be way out of tolerance not yet one > that didn’t work at all. It is possible that you really have a wiring > issue and that moving stuff made the system work for now. This is > usually the case when someone thinks they fixed an operating problem > by replacing the temp 2 sensor. Simply wiping the contacts or moving > the wires where crimped in those connector terminals did the fix. > > The connector for the oil pressure switches on the left side of the > engine tends to corrode and make a very high resistance connection > causing false oil pressure alarms. A bad engine ground can also cause > a back feed triggering the system to falsely alarm. Using a meter a > real diagnoses could have been made without simply changing parts and seeing what happens. > Who knows, maybe you have a switch that was operating at the high end > and that engine has an oil pressure problem. > > Dennis > > > -----Original Message----- > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On > Behalf Of John Rodgers > Sent: Thursday, July 21, 2016 9:38 AM > To: vanagon@GERRY.VANAGON.COM > Subject: Re: 1991 Carat - the drama continues > > No, what I'm saying is, a brand new switch failed right out of the > box. I supplied the new switches - and a new thermostat - to the shop.

> They were quite old, having been gifted to me when a local VW shop > closed. I was gifted many genuine VW parts. Though old, but still in > the original boxes, I saw no reason not to use them. That one switch > failed. New out of the box failures are not new to me. I once had a > new piece of avionics navagational gear that cost $5000 fail on the > first flight after installation only 10 minutes from the airport after

> departure. Frustrating to be sure. But an easy fix by exchanging for > another new one. Took a little time to R&R the thing. But other than that, no problem. Same with tne switch. > > John > > On Jul 21, 2016 04:03, "Frank Condelli" <RAlanen@aol.com> wrote: > > > Soooo, what you’re telling us here is that your shop rebuilt > > and installed an engine and did not install NEW $6.95 oil pressure > > switches and make sure the wiring to those two switches are in > > PERFECT > condition. > > Better tell us the shop to avoid ! > > > > > > > On Jul 21, 2016, at 12:00 AM, Automatic digest processor < > > LISTSERV@GERRY.VANAGON.COM> wrote: > > > > > > Finnaly got the new engine installed, tested and everything seemed

> > > to run fine. Water was used for cooling while testing. Drained it > > > out today, dragged out my bong filling devise, and proceeded to > > > fill the system with > > > 50/50 mix of glycol and water. Once filled, I took it out on > > > Interstate > > 20 > > > eat of birmingham for a test run. Couldn't have asked fo better > > > performance. As I rxited the highway at a cloverleave, my heart > > > sank! As the van slowed the oil light came on with the warning horn. > > > What tne > > heck! > > > > > > There was a big grassy area in the cloverleaf, and I coasted to > > > stop out > > in > > > it. I was puzzled. I waited a few minutes, then started again. > > > Goosed the throttle up a bit, and as the rpm dropped the oil light

> > > came on again an the horn sounded. Little bells started ringing. I

> > > thought, lets try this again, but take the rpm to 3000 rpm. I > > > started the engine, held at 3000, and the oil lighT DID NOT come > > > on.as I let off on the gas, and as the > > rpm > > > hit 2200, the alarm sounded and the light came on. Aha, I thought,

> > > I've > > got > > > you now! Dynamic oil pressure fault. Started the engine, held it > > > at idle > > - > > > no light and alarm. Push the rpm to2000 and held, still no alarm > > > an > > light. > > > Increased rpm to 2500, no alarm, no light. Let off on the gas and > > > whenn > > the > > > rpm dropped to 2200 the light came on and the ala3rm sounded. > > > Definitely that dynamic oil pressure system! Drove it back to the > > > shop at 2000 rpm > > and > > > under. No problem, no light, no alarm. > > > > > > Tomorrow it gets a new switch! > > > > > > Hopefully the vehicle will be ready then for the rest of it's > > > restoration > > > > > > John > > > > Cheers, > > > > Frank Condelli > > Almonte, Ontario, Canada > > '87 VW Westy, '00 Kawasaki 250 Sherpa, "98 Ducati 750 Monster & > > Lionel Trains (Collection for sale > > <http://frankcondelli.com/trainsal.htm>) > > Frank Condelli & Associates <http://www.frankcondelli.com/> - > > Vanagon/Vanagon Westfalia Service in the Ottawa Valley BusFusion > > <http://www.busfusion.com/> a VW Camper camping event, Almonte, ON, > > June 02 ~ 05, 2016 > > >


Back to: Top of message | Previous page | Main VANAGON page

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.