Mailing List flyrotary@lancaironline.net Message #48457
From: Richard Sohn <res12@fairpoint.net>
Subject: Re: [FlyRotary] Re: Good, bad news...too much oil pressure somewhere
Date: Sat, 3 Oct 2009 07:01:48 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
I like to catch things before they clog up the oil cooler.
 
Richard Sohn
N2071U
----- Original Message -----
Sent: Friday, October 02, 2009 10:35 PM
Subject: [FlyRotary] Re: Good, bad news...too much oil pressure somewhere

Richard,

I think the oil filter is supposed to be the last thing before the engine.  If so, how could a low flowing oil cooler build pressure to blow the filter?  The filter should be after the cooler??

Bill B  

 


From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Richard Sohn
Sent: Friday, October 02, 2009 9:49 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Good, bad news...too much oil pressure somewhere

 

----- Original Message -----

From: Al Gietzen

Sent: Friday, October 02, 2009 8:18 PM

Subject: [FlyRotary] Re: Good, bad news...too much oil pressure somewhere

 

Almost immediatly I noticed one of my heavy duty Aeroquip oil lines had burst.  Hmmmmm, the Oil Pressure reading never went over 75 and was around 35 when idle (as a matter of fact, at idle, it is usualy around 30).  I belive these reading to be in the normal ranges.

This is strange.  What type of hose?  If it is the Teflon/braided SS line it should take several hundreds of psi.  Is there not a pressure relief valve on the outlet side of the pump that limits the pressure to something like 150 psi?

Al G

Forgot about that, Al. I did not have the relieve valve when my oifilter blew the gasket.

Nevertheless, this should not happen under normal condition. After I fixed the oilcooler problem, it never happened again, and I still do not have a relief valve in the ground testing engine.

Richard Sohn
N2071U



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