Date:         Thu, 2 Nov 2000 06:32:34 EST
Reply-To:     kenneth d lewis <kdlewis@JUNO.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         kenneth d lewis <kdlewis@JUNO.COM>
Subject:      Re: Buzzer of Death (2.1)
Comments: To: scholten1@MARSHALL.EDU

Sam;
        It does not sound like an oil pressure problem to me. The oil
should be thicker when it's cold hence improving your oil pressure.

You have two oil pressure sensing switches.
The low pressure switch (4.4) must open between 2.2 and 6.5 psi.
It is located between cylinder 3 and 4
The other switch (13.1) must close between 10.9 and 14.8 psi.
It is in the vicinity of the oil pump.
The flashing LED is associated with the 4.4 sensor.
The flashing LED and the buzzer occur with RPM>2000 and no switch closure
from the 13.1 sensor.

        Both sensors wires end up in the same , two conductor, molex
connector above the engine. A loose/dirty contact in this connector gave
me the LED/Buzzer symptom . A quick fix.

        I do not understand your statement about the dipstick being
useless.




Drive Safely & Good Luck
Ken Lewis    <Kernersville,NC>
86 VW crewcab;60 356B Coupe
--------------------------------------------------

On Tue, 31 Oct 2000 21:23:51 +0000 Sam Scholten <scholten1@MARSHALL.EDU>
writes:
>Got problems...
>
>My '87, which sat for awhile before I bought it, ran well for two
>weeks.
>Then, all of a sudden, one cold morning... bzzzzz! As we all know, the
>dipstick is absolutely worthless, so I put a half-quart in... bzzzzz!
>After the second half-quart, Gus decided he was happy and agreeable to
>carry me to work.
>
>Two cold mornings later... bzzzzz! This time, only a half-quart made
>Gus
>happy. Mind you, on both days, the evening commutes home went without
>a
>hitch.
>
>I was beginning to get worried about keeping too much oil in the
>engine,
>and thought there was still some grime hanging around from before the
>oil change. So, I changed the oil (always with a filter). For two
>weeks,
>Gus was happy.
>
>Yesterday, on a cold morning, I put Gus in reverse to back out of the
>driveway. I released the clutch... bzzzzz!
>
>Figuring that there is still some grime back there, I changed the oil
>yet again last night. Pitch black. Now surely, some fresh oil would
>fix
>this.
>
>This morning, once again cold, backing out... bzzzzz!
>
>I was starting to think that I have bearing trouble, as these
>incidents
>only seemed to happen on cold mornings. I was thinkintg of dipstick
>heaters, trying to squeeze into the garage, and other ways to keep
>going
>without a rebuild. My girlfriend suggested that I test my theory this
>evening, as it was pretty balmy today. Fired Gus up, running well,
>revved the engine before even putting it into gear... bzzzzz!
>
>SO, HERE ARE MY QUESTIONS:
>
>1. Assuming the bearings are fine (the engine is not noisy and doesn't
>smoke, and the buzzer came on in warm weather); how feasible is it to
>replace the oil pump without removing the engine?
>
>2. Could the oil pressure sensor be faulty, and how do I check?
>
>3. What other factors can be at play here?
>
>The engine, even though the bottom of the case-split is a little wet,
>leaves no spots on the ground (which is one reason that I bought the
>bus). The tailpipe isn't oily or slimy. The motor only smoked after I
>tried using Liquid Wrench to help get the old muffler off.
>
>Please help!
>
>Thanks,
>Sam

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