I get the exact same numbers on my 90 westy, 2.1L, with 20W50 regular
oil.  Initial pressure when cold is the same as yours as well.

Laurence Smith
Hamilton, ON
90 Westy (fanumbos)

> -----Original Message-----
> From: Vanagon Mailing List
> [mailto:vanagon@GERRY.VANAGON.COM]On Behalf
> Of Ben McCafferty
> Sent: Thursday, September 12, 2002 9:28 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Oil pressure data...need interpretation
>
>
> Hi all,
> Finally got around to installing an oil pressure gauge, as
> I was having the
> oil pressure light/buzzer symptom.
>
> I am running a 90 westy syncro, 2.1L WBX, with 15W50 Mobil
> 1 synthetic.
> When I first start (and the engine is cold), pressure
> hovers around 50-60
> PSI at any speed.
>
> After the engine is warm, I get the following (RPM/PSI):
> Idle 900/8-10
> 2000/25-30
> 3000/40
> 4000/45
> 6000/just kidding
>
> So, now the question is, are these numbers normal?  I
> haven't been able to
> duplicate the symptom with the new dual pressure sender.
> One thing I
> noticed is, the old sender had a hole about the size of a
> wood pencil lead,
> and the new one has a hole the size of a pin.  Leads me to
> wonder if the
> larger hole is more susceptible to slight pressure
> fluctuations in the
> system, leading to false positives?
>
> I'm driving to Hatch, NM tomorrow, and will try to get the
> light/buzzer and
> see what the pressure is.  I'm making a green chile run, so
> if anyone in
> Denver would like some brought back, let me know by tonight.
>
> tx,
> bmc  :)
> "Faith will move mountains, but you'd better bring a shovel...."
>