|
Re: Oil Separator
Jeff Barnes
I have an anti-splat, drains the oil-scum back into case, gunk into exhaust via a check valve which does the sucking on the case. Clean the check valve every 50 (oil change), sometimes less. Get better performance from negative pressure in crank and never pushed the crank seal out since the install. Yeah, before the anti-splat on a cool summer afternoon the relief tube froze up and blew the seal out of the crank. Kinda messy. I strongly recommend an anti-splat air-oil separator. Regards; Jeff Barnes RV6 Race 411 N790DW
On Friday, June 18, 2021, 09:16:50 PM CDT, Marc J. Zeitlin <marc.j.zeitlin@...> wrote:
Greg Norman wrote:
Busch. I don't remember his being negative on the idea of an air/oil separator - do you have a link?
|
|
|
|
Re: Oil Separator
cozygirrrl
A properly designed oil separator will do its job quite well but only if used properly. For one, if you only fly around the patch to stay current and to lubricate your engine then it is the worst thing you can add to your engine, it will do a great job of returning the oil , condensation, acids etc back to your engine.
toggle quoted messageShow quoted text
If on the other hand you fly long enough for the entire engine and oil to get up to temperature plus maybe an hour then the things that are not oil will become vapor and get separated and blown out while almost all the oil is returned to the sump. It works very well if you give it the opportunity to do its job.
On Jun 18, 2021, at 10:43 PM, cozygirrrl via groups.io <cozygirrrl@...> wrote:
|
|
|
|
Re: Oil Separator
cozygirrrl
A clone of the oil miser we produced ten years ago.
toggle quoted messageShow quoted text
On Jun 18, 2021, at 9:16 PM, Marc J. Zeitlin <marc.j.zeitlin@...> wrote:
|
|
|
|
Re: COZY: Re: [c-a] Oil Separator
Marc J. Zeitlin
DONALD BERLIN wrote: Why we don't recommend air-oil separators... Excellent - thanks for the pointer, Don. So Mike's assumption is that if you use one, you're going to dump the effluent back into the sump, and he proposes that that's a bad idea. I won't (and can't) disagree, given that he has vast experience in this area, and I don't. BUT, if you DON'T dump the effluent back into the sump - if you collect it, as Vance indicated, and as I do (and others) or if you put the residue into the exhaust pipe to be burned, then the argument for not using them is eliminated, and as long as you're willing to either empty the container on occasion (I empty mine at my CI, once/year with about 100 hours of operation/year), or de-coke the exhaust valve if you put the effluent into an exhaust pipe (and that needs to be done every 50 - 100 hours or so). Thanks again for the pointer - after you posted it, I recalled having seen that in the past.
|
|
|
|
Re: COZY: Re: [c-a] Oil Separator
 On Jun 18, 2021, at 7:31 PM, khalid Shuwayhat <khalid.shuwayhat@...> wrote:
|
|
|
|
Re: Oil Separator
Marc J. Zeitlin
Greg Norman wrote:
Busch. I don't remember his being negative on the idea of an air/oil separator - do you have a link?
|
|
|
|
Re: Oil Separator
Greg Norman
I hear good and bad things about the oil seperator. Mike Bushe speaks against it.
On Tue, Jun 15, 2021, 6:03 PM Keith Spreuer <kspreuer@...> wrote:
|
|
|
|
Re: Oil Separator
berkut13
I put this unit on Thirteen and it works amazingly well.
https://antisplataero.com/products/the-asa-oil-separator
They also have a pre-built oil return tube for easy connection back to the sump. I have that installed, but I am not using that option just yet as I wanted to measure the amount of oil captured and just have it draining into a small Nalgene bottle. It’s not much but it sure was a mess. Now…nada from the breather tube.
https://antisplataero.com/products/oil-drain-back-line
Good mod.
-James Berkut/Race 13
From: canard-aviators@canardzone.groups.io [mailto:canard-aviators@canardzone.groups.io] On Behalf Of Keith Spreuer
Sent: Tuesday, June 15, 2021 5:04 PM To: Cozy Builders; Canard Aviators Subject: [c-a] Oil Separator
I think a big part of the oil mess on my prop is mist from the vent tube with no separator. I'd like recommendations for a separator. One with no return to the sump. Keith
|
|
|
|
Re: Oil Separator
Bill Allen
Many years ago, in a Galaxy far, far away (Olde England) I fitted an ACS separator to my 0-320 LongEz, with a fitting on the accessory case to take the oil return. The engine was a zero-timed unit, and I expected the oil consumption to be high until the rings bedded in etc etc. But the engine continued to have higher oil consumption than I would have liked. Experts blamed it on changing from “straight” oil to AD oil too soon. Wasn't bad enough to cause major concern, but wasn’t what I was expecting. One day, as I was replacing the LSE Hall effect unit which had gone faulty, I had cause to remove the separator which was mounted high on the firewall. As I disconnected it from the hose which drained it into the accessory case fitting, I noticed that the drain hose was full of oil. It turned out that the location I had chosen was backfeeding up into the separator, which was the cause of my high oil consumption. I blanked it, and fitted a catch bottle to the separator drain, and my oil consumption improved. Just another “tales from Lake Wobegon hangar” FYI Bill Allen LE160 FD51
On Wed, 16 Jun 2021 at 00:12, skovbjerg <skovbjerg@...> wrote:
--
|
|
|
|
Re: COZY: Oil Separator
Tim Andres
I had Blackstone labs do before and after tests on my oil with that specific question, if they saw any difference after the separator install, and they saw nothing to report. Hardly conclusive but FWIW. My thought on the gunk noted by catch can users is these type of installs are nothing less than a still. You are taking some of the blown-by gasses and condensing them in the cold plumbing and can. Because of the delta P between the crankcase and the ambient-vented can, lots of gasses flow thru the drain line in addition to separated oil. With the oil return system there is no delta P (between the separator and crankcase) The same gasses and gunk you see distilled in the can have been blown overboard. To each his own, I certainly understand how convincing the goo in the can is. I just don't believe that same condensate occurs on return systems. Tim Andres
On Jun 15, 2021, at 10:35 PM, Paul Saccani <saccani@...> wrote:
|
|
|
|
Re: COZY: Oil Separator
Vance Atkinson
On 6/16/2021 12:24 AM, skovbjerg wrote:
I'm talking about the DRAIN line not the large Vent line... In any case every once in a while I found this captured in the bottle... This is the only pic I took of it, and did not have it analyzed. 30% of the bottle is full. And a third of that was white gunk. I didn't see this every time I changed the oil at 25 hours, only occasionally would it show up. But no matter, I didn't want it going back into the engine. With this set up I had virtually NO oil or soot on the prop. On long flights ( 4 or more hrs) I did get a very, very ultra thin coating of something that looked like a rainbow where the exhaust impinged on the prop area. Oil is cheap compared to engine parts so I didn't want acidic, and contaminated oil going back into the engine... Vance Atkinson 
|
|
|
|
Re: COZY: Oil Separator
skovbjerg
Routing the oil return line into a collector bottle compromises the functional concept of the oil separator. The separator must have crank case pressure on the oil return line for it to be able to push water vapors with whatever acidic components they may hold out the vent line. Routing the return line to a collector bottle (without crank case pressure) allow some of the vapors to go into the bottle and make a mess of everything in the bottle. :-) Jay
On Jun 15, 2021, at 17:20, Marc J. Zeitlin <marc.j.zeitlin@...> wrote:
vance atkinson wrote:
I have theirs as well - probably their beta unit :-).
I do the same - I've got a collection bottle that I empty maybe once/year or so. However, I have a hard time believing that routing the stuff the unit collects back into the sump is a problem - it just came OUT of the sump, so it's already been in there. No? I just had no handy place to dump it back in, and I didn't feel like modifying the oil filler, or a return line, or the exhaust pipe - the collection bottle was just the easiest solution. I'd be interested in seeing some objective data indicating that running the separator residue back into the sump is a bad idea, and why...
|
|
|
|
Re: COZY: Oil Separator
saccani@y7mail.com
I don’t think there is much chance of data supporting it. Those who object to sump return are in the main concerned with the return of acids to the sump. In principle, I suppose that acid vapours may be cooled and condense and be returned in some circumstances. I think it unlikely to be a significant issue, given that aircraft engines usually spend long periods with the oil more than hot enough to evaporate acids from blow-by - at worst, it will take a little longer.
toggle quoted messageShow quoted text
Crankcase ventilation in piston engined aircraft is generally, well, if not antiquated, certainly old fashioned. A modern crankcase ventilation system, deliberately introducing filtered air into the crankcase and ventilating by a combined PCV valve/oil separator, returning the residue to the sump is vastly superior in reducing acid in the oil - even if vented into the induction system instead of directly overboard. The PCV/Separator in suitable sizes can be obtained as a BMW spare part for their larger petrol engines. Whistle slots and slits in case of icing still need consideration. Cheers, Paul Saccani
On 16 Jun 2021, at 08:22, Marc J. Zeitlin <marc_zeitlin@...> wrote:
|
|
|
|
Re: COZY: Oil Separator
Marc J. Zeitlin
vance atkinson wrote:
I have theirs as well - probably their beta unit :-).
I do the same - I've got a collection bottle that I empty maybe once/year or so. However, I have a hard time believing that routing the stuff the unit collects back into the sump is a problem - it just came OUT of the sump, so it's already been in there. No? I just had no handy place to dump it back in, and I didn't feel like modifying the oil filler, or a return line, or the exhaust pipe - the collection bottle was just the easiest solution. I'd be interested in seeing some objective data indicating that running the separator residue back into the sump is a bad idea, and why...
|
|
|
|
Re: COZY: Oil Separator
Vance Atkinson
Try the Cozy Girrls... they make a really nice one. Put one on my
Cozy about 25 years ago...In the second picture.... I would NOT
plumb it so the oil goes back into the sump. That is some nasty
stuff. Instead I took one of my wife's Revlon bottles and plumbed
the return into it.
toggle quoted messageShow quoted text
Vance Atkinson Cozy N43CZ 2500 hrs TT  
|
|
|
|
Re: COZY: Oil Separator
gary stull
I used Airflow systems separator. A little pricey, but you just install it in the breather line. It worked well for me. No return to the oil pan
toggle quoted messageShow quoted text
On Jun 15, 2021, at 6:26 PM, Kevin R. Walsh <krwalsh@...> wrote:
|
|
|
|
Re: COZY: Oil Separator
Kevin R. Walsh
I have this one: With the exhaust entrainment vacuum port as well. You need to service it every 50 hours to make sure it does not get coked up. I drain mine back to the sump, but you are free to drain it to a catch bottle.
On Tue, Jun 15, 2021 at 3:03 PM Keith Spreuer <kspreuer@...> wrote:
--
Kevin
|
|
|
|
Re: Oil Separator
skovbjerg
I am using this one With return to the sump, but it is your call where to drain the oil to :-) Jay
On Jun 15, 2021, at 15:05, Keith Spreuer <kspreuer@...> wrote:
|
|
|
|
Oil Separator
I think a big part of the oil mess on my prop is mist from the vent tube with no separator. I'd like recommendations for a separator. One with no return to the sump. Keith
|
|
|
|
Re: For Sale: Light Speed Plasma III Ignition w/Hall Effect Module
Andy Amendala
Sorry that was meant to be off-list. Ryszard - Please reply direct. Oops. Thanks, Andy
On Mon, Jun 14, 2021 at 11:51 AM Andy Amendala <ezwinglet@...> wrote:
|
|
|