Mailing List flyrotary@lancaironline.net Message #45273
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: RE: [FlyRotary] First start
Date: Thu, 26 Feb 2009 08:28:16 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>

I know of at least two instances where the “goesa inna” and “goesa Outta” hose fitting to a remote oil filter were reversed.  In one case, the oil pressure apparently burst the rubber diaphragm and the engine eventually got oil flow.

 

  In my case, when I first cranked my old  86 13B on a test stand that was a mockup of my firewall (including remote mounted filter) I had no oil pressure.  When I checked there was no oil on the downside of the filter.   I discovered I had  reversed the oil routes into/out of the remote filter.  I had thought the oil went into the center of the oil filter and out through the sides, but discovered it was just the opposite as shown in the drawing below.  It was pretty easy to check, removed the hose going to the filter and plenty of oil came out – but none past the filter – ergo – swap “goesa inna and goesa outta” hoses and problem was cured.

 

OFc3r.bmp (926826 bytes)

.

 

Ed

 

 

 


From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of The Mallorys
Sent: Wednesday, February 25, 2009 11:00 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] First start

 

She’s alive!

 

I had my first start today.  She sounded good, but the oil stayed at 3-4 PSI, so I shut her down.  I opened the line from the oil cooler to filter to see if I was pumping anything.  There was a little oil there, it didn’t gush out, but it was there. 

 

So now I have to figure out why I don’t have pressure.  I’m open to any ideas or suggestions.

 

Chris



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