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04-13-2014, 09:43 PM
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Join Date: Mar 2009
Location: Nashville,TN
Posts: 21
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Air oil seperator
Installed the anti splat air oil separator. Before install belly was very oily. Oil consumption was about 1 qt in 6 hrs. Just flew to sun and fun. Total time after installation 11 hours. Belly is now clean except for a few residual streaks from the corners. Oil consumption was 1/2 qt in 10 hours... Wow. Great product
Toby
__________________
RV-6 O-360 CS 750 hrs and counting
RV-4 O-360 CS Bulit and sold
airtoby@tds.net
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04-14-2014, 11:03 AM
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Join Date: Jan 2005
Posts: 3,646
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Quote:
Originally Posted by airtoby
Installed the anti splat air oil separator. Before install belly was very oily. Oil consumption was about 1 qt in 6 hrs. Just flew to sun and fun. Total time after installation 11 hours. Belly is now clean except for a few residual streaks from the corners. Oil consumption was 1/2 qt in 10 hours... Wow. Great product
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Good to hear it worked for you, Toby. Is this just with the separator or also with the vacuum valve and exhaust pipe saddle as well?
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Steve M.
Ellensburg WA
RV-9 Flying, 0-320, Catto
Donation reminder: Jan. 2021
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04-20-2014, 01:40 PM
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Join Date: Feb 2005
Location: Bridgewater, MA - KPYM
Posts: 458
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Just finished the installation of my ASA oil separator and vacuum valve on my RV-8 TMX 0360. I was impressed with the quality of the components.
Installation is pretty straight forward. It took longer than anticipated (isn't this always the way) since there is not much room between the rear of the engine and firewall. I had to remove more items than anticipated so I could have room to work.
Summary of steps: Remove old breather line, remove right mag, remove exhaust pipe, heat muff, scatt tubing, and anything else in the way....... remove plug on the rear accessory case. Install AN fitting, mount separator on firewall, drill oblong hole on exhaust pipe, mount vacuum valve, connect all lines, install and time mag, clean up and secure all lines.
The only glitch I ran into was that I was unable to install the supplied 90 degree AN fitting on the accessory case due to engine mount interference. Fortunately I had a spare 45 degree fitting that worked nicely.
I left the clamp off at the oil separator where the line is connected to the crankcase. In the unlikely event the vacuum valve malfunctions or a blockage occurs, I am hoping the line will blow off the oil separator rather than have the engine blow a seal.
Cleaned the belly, went flying, did some light acro and landed. Belly was still clean. Just in time to send the plane to the paint shop!
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Mike Draper
RV-8 N468RV
First Flight 11/13/2011
TMX0360, Pmags, CS
Bridgewater, MA
KPYM
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05-07-2014, 07:20 AM
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Join Date: Sep 2009
Location: St. Louis, MO
Posts: 1,788
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I have installed the ASA product, including the exhaust valve. After 50+ hours it is working as advertised. My oil consumption is down and my belly is clean of any oil. No more oil leaks in the engine compartment. I do periodically check the one-way NAPA valve by blowing into the oil dipstick tube to verify it is working properly.
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Bill Peyton
RV-10 - 1125 hrs
N37CP
First Flight Oct 2012
Aviation Partners, LLC
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05-26-2014, 03:24 PM
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Join Date: Mar 2009
Location: Sydney, Australia
Posts: 617
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Hi Guys,
Sorry this comes a bit late, but I thought I would share.
I would recommend that you inspect the check valve frequently for function and also blockage.
My check valve failed after 80 hours, the rivet that holds the assembly together broke and allowed the internals to fall and block the exit, there was no immediate increase in oil pressure, however the oil sludge then built up around the components and carbonised causing a complete blockage which blew the crankcase seal out of the front of the engine, what the time period was between failure and complete blockage, I can't exactly be sure, luckily I was close to the airport when I noticed a distinct burning smell.
After landing the sides, bottom and inside of the cowl and firewall of the RV where covered with oil, it was a real mess.
When I topped up the oil it needed 0.5 a quart to bring it back up to 6 quarts which is what I normally keep my oil level at, so I was lucky to not have ejected very much oil or damaged the engine.
I cleaned up the mess, cleaned and reinstalled the seal as per the appropriate lycoming instruction and have had no issues or leaks in over 60 hours, so all good here.
Allan sent me a replacement valve free of charge (their service is fabulous) and commented that they had only had 1 or 2 other failures.
I guess the message is check this component very carefully and more frequently to ensure that it is still functioning, otherwise on a long trip you could be caught out and have a very expensive engine failure.
Regards,
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Eddie Seve
Sydney Australia
First Flight 16th July 2012
RV-7 Phase 2, 30 Oct 2012
1100 hrs Feb 2020
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05-27-2014, 04:39 AM
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Join Date: Feb 2006
Location: Eliot, Maine
Posts: 83
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Whistle Slot?
A whistle slot was sometimes cut in the old style breather tube to bypass a blockage if one did occur. For these ASA oil separator installations should we be cutting a whistle slot in the hose to / from the separator to prevent this type of blow out?
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Claudio Scremin
N221Z RV8A Maine 600+ hrs
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05-27-2014, 10:32 AM
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Join Date: Feb 2005
Location: Bridgewater, MA - KPYM
Posts: 458
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A whistle slot is not recommended on the ASA setup. To help mitigate any damage to the engine seals in the event of a blockage I removed a hose clamp from the hose where it contacts the oil-air separator. I am hoping that the hose will blow off of the oil-air separator before an engine seal blows.
Open to other options. Any other suggestions?
__________________
Mike Draper
RV-8 N468RV
First Flight 11/13/2011
TMX0360, Pmags, CS
Bridgewater, MA
KPYM
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05-28-2014, 04:47 PM
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Join Date: Sep 2009
Location: St. Louis, MO
Posts: 1,788
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Here is a detailed discussion on the subject
__________________
Bill Peyton
RV-10 - 1125 hrs
N37CP
First Flight Oct 2012
Aviation Partners, LLC
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