Mailing List flyrotary@lancaironline.net Message #13034
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Typical oil pressure
Date: Sun, 21 Nov 2004 08:25:22 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
I've noticed lower oil pressures lately. Between 30 and 40 at 3500 rpm or so when hot. 
I need to double check the calibration, but was wondering what people consider normal.
John Slade 
 
Normal depends on which regulator you have, but it's usually about double what you're reading.  My initial oil pressure check after cranking is about 75 psi, at 2000 rpm.   It's probably less than that when warm, but I can't recall checking it.  I know that my oil pressure low alarm is set at 35, and it never goes off.  I agree about double checking the cal.  That's almost certainly the problem.  
 
Cheers,
Rusty (wife won't let me cook with MMO anymore because it leaves too much residue) 
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