"The Westy man" <thewestyman@GMAIL.COM> said:

> OK, I will check the pressure then change the switch if I have to.
> 140k on engine, compression is very good, engine quiet, smooth.  And it only
> comes on when I push it up to 2300.

There are two separate oil pressure alarms.  One is triggered by the
sensor on the crankshaft oil journal, on the bottom left side of the
engine.  It illuminates the oil pressure lamp (but not the buzzer) if
the pressure falls below 0.3 bar at any time.

The other circuit flashes the lamp and sounds the buzzer if the pressure
falls below 0.9 bar with the engine above 2000 RPM.  It is located sort
of under the crank pully, kinda tricky to get at.

It's not unheard of for the wrong sensor to be installed.  My van had
the buzzer problem after it warmed up; turned out that there was a 1.8
bar sensor installed instead of the 0.9 bar.

Good luck.

Allan
--
1991 Vanagon GL