Oil Vapor Separator Horror Show Pt 1 - Page 13 - Alfa Romeo Bulletin Board & Forums
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post #181 of 200 (permalink) Old 01-31-2011, 08:07 PM
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never mix your 'personal' photos , with car photos( still learning about my digital camera).. i am now making a page in my p.c. for ' alfa romeo' photos... sorry agian

anyone can buy a Porsche, only Drivers drive a Alfa Romeo
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post #182 of 200 (permalink) Old 06-13-2013, 07:52 AM
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Hi
I've been reading this discussion for a while and have never went to the end, sorry.
On the web there are plenty of papers about cyclonic separators which are widely used in the industry.
I think it's interesting to look at the following product description, under the name:
Oil Mist Separator X-CYCLONE® 2.1 – english - Reven-usa.com
On page 7 there is explanation how they create micro-cyclones to separate oil from air.

Here is the link, not sure it will work, you can search for the name above:

http://www.google.fr/url?sa=t&rct=j&...PqtwLw&cad=rja

The next link points at a helical separator, the idea being to help the mixture to flow around the center line:

http://www.google.fr/url?sa=t&rct=j&...ri6FMA&cad=rja

So would not we just use a metal tube shaped in a cyclone that spirals down inside a can ?

Last edited by alpa; 06-13-2013 at 09:37 AM.
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post #183 of 200 (permalink) Old 08-18-2013, 04:04 PM
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Bumping this again. Noticed Centerline now has replacements for sale (though on back order) In all these pages never saw - WHAT THE HECK IS EVERYONE USING FOR HOSE? :-)

David Griszkauskas

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Aš nesuprantu
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post #184 of 200 (permalink) Old 08-18-2013, 04:51 PM
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.. at least it's not a british car.. lights go like this.. dimm, flikker, off..
Which explains why Brits drink their beer warm; Lucas also made refrigerators......

Marc
1980 Spider, 1997 Fiat Coupe 20VT, 1965 Giulia TI, 1971 Spider 1300 Junior
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post #185 of 200 (permalink) Old 05-08-2014, 09:40 AM
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OVS Element

Is there a source for a replacement OVS Element? If not, what are the specs for the steel wool substitute?

1982 Spider
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post #186 of 200 (permalink) Old 05-08-2014, 02:28 PM
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My 02cents is that if the OVS has oil to catch there is to much blow by and there is a ring problem. With a healthy motor the oil should be measured in drops. If there is much more than that especially after highway runs above 4000 there will be more than even a healthy OVS can catch.

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post #187 of 200 (permalink) Old 05-08-2014, 02:59 PM
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The OVS is part of the PCV system and if either the dipstick seal or the oil filler cap gasket are bad it will create an air leak into the crankcase which will result in a higher flow rate of vapor to the canister. The idea of the system is to maintain a lower pressure in the OVS than in the crankcase so that there is positive ventilation at all times but properly sealed there isn't going to be a great amount of flow and therefore only a very small amount of oil vapor for the OVS to deal with. The priming of the drain-back line is also a part of that dynamic seal.

Paul - 1972 Spider - (2)1991 164S's - 1983 308 - 2001 Discovery - 1997 F350
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post #188 of 200 (permalink) Old 05-09-2014, 04:42 PM
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Quote:
Originally Posted by Vic View Post
Is there a source for a replacement OVS Element? If not, what are the specs for the steel wool substitute?
I used stainless steel pot scrubber from a restaurant supply store. The idea is to have lots of surface area, but large enough ribbons of material that wont get sucked through vacuum lines into a cylinder. As coarse of steel wool as you can find, and stainless is important to keep rust away.

It works well in my homemade ovs. I have 64 or so k miles on my motor, other replies are correct, amount of oil caught and returned is minimal. I clean mine out every couple years.

Phil in FL

84 Spider
08 Tundra
92 Nighthawk 750

Last edited by 84FLVeloce; 05-09-2014 at 04:44 PM.
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post #189 of 200 (permalink) Old 08-24-2014, 08:38 AM
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I just started working on my 87 Spider,I've been going through all the components under the hood. I got to the oil separator. Clogged and not designed to be opened, as all you Alfa people know. Your solution made my day thank you so much, now back to work.
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post #190 of 200 (permalink) Old 08-24-2014, 09:24 AM
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I just started working on my 87 Spider,I've been going through all the components under the hood. I got to the oil separator. Clogged and not designed to be opened, as all you Alfa people know. Your solution made my day thank you so much, now back to work.
Great! Everyone here luvs happy endings, almost as much a pictures!

That's what the Forum is all about!

Now fill in your signature line and you will become an official member, in good standing. :-)

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post #191 of 200 (permalink) Old 12-11-2016, 07:37 AM
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Question for Alfanuts.

You soaked the OSV in paint thinner and cleaned a while back. Have you checked it lately? Was cleaning as you described effective?

Just bought a '77 spieder with 23k original miles. Have not delved into this beyond the bottom hose which had some black crud in it. Figured I would do as you did and clean all of this system.
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post #192 of 200 (permalink) Old 12-11-2016, 11:40 AM
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Quote:
Originally Posted by dhayes5 View Post
Question for Alfanuts.

You soaked the OSV in paint thinner and cleaned a while back. Have you checked it lately? Was cleaning as you described effective?

Just bought a '77 spieder with 23k original miles. Have not delved into this beyond the bottom hose which had some black crud in it. Figured I would do as you did and clean all of this system.
you can bet your bottom dollar, it hasn't been cleaned in 23k miles

yes. I do it every year (max every two)
Pretty clean now.
Alfa recommended cleaning it every few thousand miles (read this somewhere, but can't find it again, might even be in my WSM or a TSB maybe)

edit: oops sorry, question was for alfanuts.......

Dom - Alfa Spider 1990 S4 - formerly: Alfa 101 Sprint, 2600 Sprint, Montreal - family classics: Jensen Interceptor II, '58 Hooper RR Silver Cloud I, Shadow II, '60 Corvette.

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post #193 of 200 (permalink) Old 12-11-2016, 04:16 PM
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Quote:
Originally Posted by gigem75 View Post
My 02cents is that if the OVS has oil to catch there is to much blow by and there is a ring problem. With a healthy motor the oil should be measured in drops. If there is much more than that especially after highway runs above 4000 there will be more than even a healthy OVS can catch.
I've run several Euro carb'd cars where the breather heads straight to the "banana style" air cleaner, no OVS, no oil return, and I have never found any oil stain on the air filter element. Seems like this oil return line and need is overblown.

shayes5 - I R&R'd it a 2nd time a few years later and it was pretty clean. It's been a few years now and due again, but not many miles put on annually.

Last edited by Anfanuts; 12-12-2016 at 05:49 AM.
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post #194 of 200 (permalink) Old 12-12-2016, 02:59 AM
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Thanks for the reply - into the paint thinner it goes this week. Gives me something to work on while the TA is with Wes Ingram getting rebuilt.
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post #195 of 200 (permalink) Old 12-12-2016, 07:24 AM
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If you go back to the 5/9/2012 topic of new OV separator there is a link to someone who was making them. I bought and installed one and it is working fine. Others did the same.

Michael Squeo
87 Graduate
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