Low pressure 401

[Nick ALFANO <71amx@xxxxxxxxxxxxx>]

Jesse,

Sure sounds like a bearing problem to me.  The oil is
thick when it is cold taking up more of the clearance
in the bearing.  Once it heats up and thins out your
clearance increases and your oil pressure decreases. 
Does the oil pressue go up a bit when you increase the
RPMs?

Nick

Message-ID:
<20050617052010.33373.qmail@xxxxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 16 Jun 2005 22:20:09 -0700 (PDT)
From: Jesse <j2sax@xxxxxxxxx>
Subject: Low pressure 401?
To: mail@xxxxxxxxxxxx

SO, the freshly rebuilt 401 has great oil pressure
when it's started, and when it's got some RPM going.  
Once warmed up and at idle it has Zero pressure.  The
only thing this fellow did not do himself was the cam
bearings and that was my first thought.  

He swapped the timing cover with a known good engine
timing cover with the same result, so it's not the
pump or cover.  Any other ideas?

Do well, 

Jesse