Date:         Tue, 1 Aug 2000 22:12:07 +1300
Reply-To:     Andrew Grebneff <andrew.grebneff@stonebow.otago.ac.nz>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Andrew Grebneff <andrew.grebneff@stonebow.otago.ac.nz>
Subject:      Re: Oil sensor still buzzes
Content-Type: text/plain; charset="us-ascii"

>Interesting thread. My recently purchased '86 Vanagon GL oil pressure sensor
>buzzer and light alarms intermittantly only once the engine temperature
>rises above the midpoint of the temperature gauge (ie when driving in stop
>and go traffic here in the SF Bay area!). If I drive in third gear and drop
>my speed such that the engine's rpm's drop below 3,000 and then attempt to
>accelerate back up, the alarm is actuated. If I downshift and run the rpm's
>back up, the alarm goes off.
>

Sounds possibly like worn bearings or oilpump, producing low oilpressure.
Giving it a rev increases the pressure sufficiently to stop the buzzer. The
oil light in my 69 Kombi comes on at idle when hot, indicating a similar
condition in the van's LETHARGIC Corvair engine.

Andrew