You wrote
"> Jim
I had the sme issues with the Vanagon I bought off a used truck lot in
Little Rock.   The buzzer went off and the oil light went on and I got
him to knock off like $3000 of the price.  Turned out it was old oil, and a cheap ass filter that didn't have the anti drainback valve in it.
I'd heed Dennis' words more than mine, as my situation may have been totally different."

The oil pressure switch for the buzzer is located between the oil pump and the filter. The filter change didn't help with the buzzer unless the flow was restricted even more causing a higher pressure drop which would actually result in less flow the bearings. 

Dennis
 

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Max Wellhouse
Sent: Tuesday, August 20, 2013 7:13 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Oil pressure question 2.1

On 8/20/2013 6:01 PM, Dennis Haynes wrote:
> Engine is running hot.
> Wrong oil.
> It is overfilled.
> Engine is tired.
> Wear limit 28 psi @ 4000 rpm.
>
> Dennis,
>  From my phone.
> ________________________________
> From: Jim Felder<mailto:jim.felder@GMAIL.COM>
> Sent: ‎8/‎20/‎2013 6:38 PM
> To: vanagon@GERRY.VANAGON.COM<mailto:vanagon@GERRY.VANAGON.COM>
> Subject: Oil pressure question 2.1
>
> I am considering a craigslist vanagon in the next state, a bit of a 
> drive for me. The owner says he is getting 22 pounds of oil pressure 
> on the gauge at 70 miles an hour. This seems about half what it should 
> be. He also said he has had problem with the oil buzzer going off, and 
> I believe that pressure this low would account for that.
>
> Anyone want to comment?
>
> Jim
I had the sme issues with the Vanagon I bought off a used truck lot in
Little Rock.   The buzzer went off and the oil light went on and I got
him to knock off like $3000 of the price.  Turned out it was old oil, and a cheap ass filter that didn't have the anti drainback valve in it.
I'd heed Dennis' words more than mine, as my situation may have been totally different.

YMMV

DM&FS