M20 Air/Oil separator

I did, too. It's slightly OT, but has anyone tried their remote
oil-filter?
The idea looks promising (and our hangar floor would benefit from
"hassel-free" oil-filter change ;-)

We installed one on our O-540 during the rebuild two years ago, and love it.
It makes changing the oil MUCH easier, especially on an O-540, where the
filter was mounted horizontally on the top/back of the engine. When you
unscrewed it, the filter would literally back up into the firewall (which
was dented from all the years of doing this), and you could just barely get
it out.

Meanwhile, of course, you were dumping the entire quart of oil all over the
engine...

Now, it's ALMOST a clean job. I still seem to manage to get oil everywhere,
but that's probably just me!

;-)
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

"Jay Honeck" wrote in message
news:CyfTc.304529$XM6.124022@attbi_s53...
Atlas just got his oil/air separator installed today. (For those who may
not know, Atlas is our '74 Cherokee Pathfinder, so-named because he can
lift
literally anything we can fit inside!)

We picked this new accessory up at OSH '04, after much debate. (It's a
helluva lot of money for what looks like a welded tin can.) The clincher
(besides the nice clean belly) is that I'll be able to run a full 12
quarts
of oil in our Lycoming O-540, rather than the 8.5 quarts we could hold
before. (Atlas would puke out the four extra quarts, if added.)

It seems logical to assume that more oil in the engine equals cleaner oil
to
all engine parts, at all times. This seems like a very good thing,
indeed.

Anyone else got one of these things? Are there any "gotchas" to watch out
for, or are they as bullet-proof as they seem?


I installed one on my TR-182 which had an incredibly messy belly. It did a
great job, almost completely getting rid of the mess.

I have no idea about the volume argument, but empirically it did not happen
on my plane. The TIO-540 has an 8 qt capacity. Anything over 6.5 quarts gets
blown out, before and after the M-20 went in.

Michael

I have no idea about the volume argument, but empirically it did not
happen
on my plane. The TIO-540 has an 8 qt capacity. Anything over 6.5 quarts
gets
blown out, before and after the M-20 went in.

This doesn't make sense to me.

A) Why would your TIO-540 blow everything except 6.5 quarts, while my O-540
would settle at 8?

B) Why would any oil "blow over" at all with the air/oil separator
installed?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

"Jay Honeck" wrote in message
news:2IFYc.3300$_g7.2378@attbi_s52...
I have no idea about the volume argument, but empirically it did not
happen
on my plane. The TIO-540 has an 8 qt capacity. Anything over 6.5 quarts
gets
blown out, before and after the M-20 went in.

This doesn't make sense to me.

A) Why would your TIO-540 blow everything except 6.5 quarts, while my
O-540
would settle at 8?

My engine only holds 8. I believe yours holds quite a bit more.



B) Why would any oil "blow over" at all with the air/oil separator
installed?

I can't explain this one. I know oil/air seperator's clain to stop blow by,
but at least in my plane, the level stays at 6.5. Just empiracal data.



--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

A) Why would your TIO-540 blow everything except 6.5 quarts, while my
O-540
would settle at 8?

My engine only holds 8. I believe yours holds quite a bit more.

What??? A turbo-charged O-540 holds only 8 quarts of oil?

I thought a turbo-charged engine ran hotter, and therefore needed more oil
for lubrication and cooling? My normally aspirated, cool-running O-540
holds 13 quarts!

B) Why would any oil "blow over" at all with the air/oil separator
installed?

I can't explain this one. I know oil/air seperator's clain to stop blow
by,
but at least in my plane, the level stays at 6.5. Just empiracal data.

What the heck is the point of having an air/oil separator if it's still
blowing the oil overboard?

I'd have the installation checked, cuz something sure sounds amiss...
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

Didn't we go through this already. More sump capacity doesn't provide "more
lubrication and cooling". You noted this yourself when you installed the
separator and the oil temp was unchanged.

Mike
MU-2


"Jay Honeck" wrote in message
news:QXcZc.80369$9d6.21156@attbi_s54...
A) Why would your TIO-540 blow everything except 6.5 quarts, while my
O-540
would settle at 8?

My engine only holds 8. I believe yours holds quite a bit more.

What??? A turbo-charged O-540 holds only 8 quarts of oil?

I thought a turbo-charged engine ran hotter, and therefore needed more oil
for lubrication and cooling? My normally aspirated, cool-running O-540
holds 13 quarts!

B) Why would any oil "blow over" at all with the air/oil separator
installed?

I can't explain this one. I know oil/air seperator's clain to stop blow
by,
but at least in my plane, the level stays at 6.5. Just empiracal data.

What the heck is the point of having an air/oil separator if it's still
blowing the oil overboard?

I'd have the installation checked, cuz something sure sounds amiss...
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"