Date: Tue, 30 Mar 1999 18:34:55 -0500
From: Lynda Frantz <LFrantz@compuserve.com>
Subject: Crank Case breather
Sender: Lynda Frantz <LFrantz@compuserve.com>
To: "INTERNET:lancair.list@olsusa.com" <lancair.list@olsusa.com>
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Message text written by INTERNET:lancair.list@olsusa.com
>I was thinking about where to anchor the engine breather hose on the 360
and
wonder if there is anything out there that might cut down on the oil that
is
bound to exit this hose (traps of some sort).  I suspect this is a major
source
of the sludge that accumulates on the bottom of airplanes.  Anybody have
any
ideas?<

Most of the grey/brown stuff you see on the bottom of the Lancair 320/360
and IVs  is exhaust soot not oil.  Brent Regan had some good ideas on how
to minimize this problem and his ideas were published in the Lancair
Network News some time ago.

Regarding the engine crank case breather, it is common to install an
air/oil separator in the crankcase breather line.  They are available
through several A/C suppliers but I though they were all too big.  I made
my own.  Quite simply you have an oil breather line in, an oil breather
line out and a quick drain.  The quick drain should be checked for oil at 
every oil change or more often if required.  This approach will assure that
no oil will get on the belly of your beauty from the crank case breather. 
BTW, some folks just let the oil drip on the exhaust pipes.

Jim Frantz
Jim@angleofattack.com