Should be accurate for that point in the system The oil filter is close to
the pump and oil pressure there is before the filter so it will read a bit
higher. This is a good place to monitor oil temperature as you are getting
the oil that is actually flowing. For best oil pressure gauge reading it is
best to use the port between the pushrods on the left side of the engine.
This is the lowest pressure in the system as it is at the end after
everything. What temperature is the oil running at with this very low
pressure? What viscosity are you using? This oil pressure is very low.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Don Dahl
Sent: Tuesday, August 30, 2016 11:48 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Oil preasure 1990 westy

Hi
just installed an oil pressure and temp gauge in a sandwich between cooler
and oil filter . How accurate is this placement compared to directly in the
block? I'm getting a reading of 15lbs at 3000 rpm . Don Sent from my iPad