WITH the picture this time.. :-)
Rusty
 
 
-----Original Message-----
From: Russell Duffy [mailto:rusty@radrotary.com] Sent: Sunday, April 06, 2008 7:33 PM
To: 'Rotary motors in aircraft'
Subject: RE: [FlyRotary] What comes first; the chicken or the egg?



The Mazda manual shows the oil being cooled via the oil cooler before it is
filtered.  One would assume that you would want the oil filtered before you
ran it through anything.  Why did they design it this way?  What are most
doing?  Are you cooling the oil before filtering or are you filtering the
oil before cooling?

The passages in the oil cooler are huge by comparison to bearings in the
engine, so it makes better sense to filter the oil just before it gets to
the oil passages in the engine.     If one was to stick to the original design and utilize the original oil
pressure outlet as the oil supply feed to the re-drive, it would appear that
this oil supply to the re-drive is un-filtered oil although the oil is
cooled.  I would assume that we would want filtered oil to the re-drive.  I
am not sure how to tackle this problem.  Any and all input into this subject
is greatly appreciated.  Many of these oil filter adapters that have recently been pictures have
threaded outlets for pressure and/or temp sensors that are after the filter.
These can be used for the redrive supply.  The 13B has a port on the top,
plug side of the front iron housing, that can be used.  I'm not familiar
with the Renesis, but I'm sure it's got something that can be used.  I don't think this will be your biggest problem :-)

Cheers,

Rusty