Date: Thu, 12 Jul 2001 21:36:38 -0500
Reply-To: clerkin <clerkin@STUDENTS.UIUC.EDU>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: clerkin <clerkin@STUDENTS.UIUC.EDU>
Subject: Re: 86 vanagon Oil Pressure Switch
Content-Type: text/plain; charset="ISO-8859-1"
OK well now I'm really stumped. The light flickers all of the time still
until it warms up. What happens is that the high pressure switch no longer
grounds at low rpm's when it is warmed up because of the lower pressure, but
as soon as I go over 1500 it starts flashing again. The light flashes when
the switch is grounded, but not when it isn't. I think this is the opposite
of how it is supposed to work? From looking in the Bentley manual, it looks
as if the low pressure switch is open over .3 bar and the high pressure switch
is grounded over .9 bar. Which is what appears to be happening on my vanagon.
Any ideas? The only thing I can think of is that I might have fried the pc
board somehow when installing the switch.
-Patrick
>===== Original Message From Karl Wolz <wolzphoto@WORLDNET.ATT.NET> =====
>Is it possible that the wire is grounded somewhere else along its path?
>They're notorious for being singed by the exhaust.
>
>Karl Wolz
>
>----- Original Message -----
>From: "clerkin" <clerkin@students.uiuc.edu>
>To: "Karl Wolz" <wolzphoto@WORLDNET.ATT.NET>; "vanagon"
><vanagon@GERRY.VANAGON.COM>
>Sent: Thursday, July 12, 2001 5:58 PM
>Subject: RE: 86 vanagon Oil Pressure Switch
>
>
>> OK, well I put the switch in, but now the light just blinks at me. No
>buzzer
>> or anything. It blinks at me all the time. It does the same thing when I
>> take the wire to the sensor and ground it. Isn't that what the switch is
>> supposed to do, ground at .9 bar? Does it sound like now the other switch
>is
>> bad?
>>
>> Thanks,
>> Patrick
>>
>> >===== Original Message From Karl Wolz <wolzphoto@WORLDNET.ATT.NET> =====
>> >Yeah. Once you've done it three times n a week, it's real easy!
>> >
>> >Grab yourself a 13mm wrench and take of the water pump pulley. If you do
>> >this, you've got pretty easy access to the sender. The job is about
>8000%
>> >easier if you use the correct tool, which is a deep well 24mm socket.
>> >Easiest is to put the socket on the sender and then put the wrench on the
>> >socket. Due to space limitations, you're better off using a breaker bar
>> >instead of a ratchet.
>> >
>> >Once you've loosened it a bit, it should only be finger tight and an easy
>> >turn off. Some say you need to use a screwdriver to push the sheet metal
>> >out of the way, but I didn't really need to do that.
>> >
>> >Karl
>> >
>> >----- Original Message -----
>> >From: "clerkin" <clerkin@STUDENTS.UIUC.EDU>
>> >To: <vanagon@GERRY.VANAGON.COM>
>> >Sent: Thursday, July 12, 2001 12:28 PM
>> >Subject: Re: 86 vanagon Oil Pressure Switch
>> >
>> >
>> >> Well I got the right switch (the gray one) but I can't seem to figure
>out
>> >> where it goes. Do you access it from above or below? There seems to
>be
>> >some
>> >> sheet metal that I cannot get out of the way to get to the switch. Any
>> >ideas?
>> >>
>> >> Thanks,
>> >> Patrick
>> >>
>> >> >===== Original Message From Karl Wolz <wolzphoto@WORLDNET.ATT.NET>
>=====
>> >> >Hi Patrick,
>> >> >
>> >> >You're dealing with two different animals here.
>> >> >
>> >> >The gauge sending unit screws into the low pressure outlet (.3bar).
>The
>> >> >1.8/.9 bar switch screws into the high pressure outlet, which is
>located
>> >to
>> >> >the left of the main pulley and under the water pump. Installing the
>> >gauge
>> >> >unit will not make your buzzer stop. You need to pick up a .9bar
>sender
>> >and
>> >> >replace the 1.8 bar with it.
>> >> >
>> >> >Karl Wolz
>> >> >
>> >> >----- Original Message -----
>> >> >From: "clerkin" <clerkin@STUDENTS.UIUC.EDU>
>> >> >To: <vanagon@GERRY.VANAGON.COM>
>> >> >Sent: Monday, July 09, 2001 4:34 PM
>> >> >Subject: 86 vanagon Oil Pressure Switch
>> >> >
>> >> >
>> >> >> I have a 1986 vanagon with an oil pressure light and buzzer which
>comes
>> >on
>> >> >> when the vehicle is warmed up and is above 2000 rpm. It will also
>go
>> >out
>> >> >> around 3500 rpm. The engine was rebuilt about 30k ago and the light
>> >came
>> >> >on
>> >> >> immediately. When the mechanic was called about the problem, he
>said
>> >that
>> >> >he
>> >> >> must have put the wrong oil pressure switch in. It has been run
>like
>> >this
>> >> >for
>> >> >> 30k without any problems, but I want to fix the problem (better late
>> >than
>> >> >> never.) I decided to upgrade to a VDO guage and sender from the Bus
>> >> >Depot,
>> >> >> but the guy I talked to on the phone didn't seem like he had any
>idea
>> >what
>> >> >was
>> >> >> going on. He told me that they did not sell the stock switch, and
>that
>> >> >the
>> >> >> only thing they had was the VDO switch and guage. He also told me
>that
>> >> >their
>> >> >> VDO guage is not the dual guage (allowing both the idiot light and
>> >guage
>> >> >to
>> >> >> operate) which is in contradiction to their website. In checking
>their
>> >> >> website I have found both of these statements to be false, but in
>their
>> >> >> defense, the man said Ron was gone and would return in a few days.
>He
>> >> >said I
>> >> >> should call him about any specific questions. Since I am still
>unable
>> >to
>> >> >get
>> >> >> any answers at the Bus Depot I thought I would try the list.
>> >> >>
>> >> >> 1. Is the dual VDO guage set at .9 or 1.8 bar?
>> >> >> 2. Is it normal for an engine with the improper switch to flash
>it's
>> >> >idiot
>> >> >> light?
>> >> >>
>> >> >>
>> >> >> Thanks,
>> >> >> Patrick
>> >> >>
>>
>>
>>
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