Crawford Air-Oil Separator Problem: Lots of Oil in Intake

[conehead]

Originally Posted by Efferalgan

Sounds either like magic or like BS

This is the correct assessment for several of Crawford's products. Best to just avoid them all together.

[chewbacca]

Originally Posted by conehead

This is the correct assessment for several of Crawford's products. Best to just avoid them all together.

If this works for any the better...

Here's what making news and will more likely open eyes ears and the breathing that these fa20 engine needs in order to function correctly that is including natural aspirated.

It'll begin with the yardstick, comparing to a V8 breathing ports. None of these v or in line engines have, like the fa20, a tube on their oil pan connected via an o ring that leads to a cavity with some baffles to help oil separate before it reaches to a PCV valve such as the fa20. Oops too late oil went through the intake.

Therefore it yields to the crankcase ventilation, CCV, section of the fa20 however is more like a V8 typical breathing scenario. So that works specially the crankcase ventilation section that is neighbor to the oil filler cap of the fa20 that it can be very useful to generate A TRUELY GOOD ventilation and/or a spot where it can drain back oil.

On the opposite end there is that PCV valve but that's the tip of the iceberg. Why? It Is the small sissy-cavity that lies underneath the PCV valve of the fa20.

And if it is a an opportunity to explain that it might be able to reverse the use of a p c v so be it.

It will ask, the engine itself to please reverse that pcv over to the front and the crankcase from the rear of the block because the only thing that keeps us from improving the PCV would be the Bubbling.

if we vent the pcv crankcase ventilation, So having high vacuum at the crankcase ventilation on the front of the block the Hindus ventilation coming from the bottom of the oil pan via the pcv route, itll be exactly just like blowing through the straw of a Coca-Cola bottle, but the opposite itll have the oil to move from the straw up the separator making its way past the pcv valve and flooding the intake with oil.

Bubbles in the oil to the point where the pick up tube cavitate that's what is unabling the use the front of the ventilation breather of the fa20? unlessssss The remove those rubber washers between the oil pan and the girddle. Agreed? If no please do provide insight please. And Nah there is no enough force to generate bubbles being disconnected.

So it well could be that oil pan baffle plates may have been created eliminates the rubber washers. i might find it. Lmk which one does. Thank you in advanced. Nahhh the issue is the Tunnel that connects left and right valve cavities in the pcv oil separator behind the block, but would it hurt the engine to eliminate these rubber washers?

Or is it safe to operate this engine with a driled hole on the oil pan pcv oil separator tube aka straw. Acting Just like a craked straw while drinking coca cola. Lets only air through, thus, the gasses for the pcv! Serves the purpose right. It might work i believe so. Anyone?

The drainage now will be able to be free from suction in that part of the oil pan. Sure... there is that much oil coming down from the separators that there aren't actually needed for these rubber washers?

Anywho...

...Making it is difficult for the oil to be sucked up through the Breather called the PCV in this proposed case. So the positive ventilation can truely take place with a lot less oil mist. Logically oriented.

Simply at this point it will be great to have someone here that Homes shops and races/experience enough and all of that good stuff, perhaps if that person could help clarify and confirm this it will be absolutely great.

Furthermore, follow that cavity down until it meets the O-ring ring at the oil pan then the problem goes further down at the very bottom of the oil pan that little hole connects the PCV valve at the top making it a long straw with a stretch in the middle waiting for vacuum to suck up all the oil through the PCV at the same moment where the restricted left and right tunnel fills with the high speed gasses tries to merge into the tiny ass pcv hole, just like a Coca-Cola drink and a straw. As a reason why they have on the STIs PCV cavity so big that is almost twice as big. Well it is also how the breathing tales take place on the sti valve covers, there are two breathers on each side, not one small hole on the back of each valve covers like the fa20 ! And this is a small tunnel that meets in the pcv hole. There are few ideas here..add a couple of breather tubes on those valve covers and or what i came up with its similar.

So in order to create some flow of gases all you need the high pressure and another along with a low pressure one meaning vacuum on vacuum terms. This creates gas movement. Just hold on to this thought.

So let's say that you have accumulated so much oil like it does happen a lot in these catch cans and there is one in particular that is dirtier than the other and that kind of help us understand how is the PCV is acting up that's is burping and in some or many cases oil is being sucked up by adding vacuum generated at the intake or high source of vaccum.
And dont forget, that sucking up vacuum up this straw its or is it not lowering oil level near the pick up tube entrance?

Supposedly the "straw", the tubes of the oil pan, were added to "use the pick up tube suction force to invite the oil down from the pcv straw and the ccv better vented straw. This is an oxymoron. One side is saying hey I'm inviting you to come over oil so I can put you through the oil pump and then the other one says wait a minute I've been sucked up by vacuum I'll be back later. And a cause for oil level to drop, drop in preassure too! I have test driven and seen this at a stop light comig from a 35mph short cruise.

It has the one way check valve keep in mind this for Force induction at the intake sourcing from intake manifold . So guess what's needed what's needed is that huge tank with machined the PCV threads to 3/4 of an inch pipe so you can rest assured that there is no static energy enough to keep the oil together while is being sucked up into the intake or through the vacuum lines. So the s t i a y PCV hose look into it.

Well this case with the fa20 one must have to increase in proportion to the small air oil separator it has and generate that additional volume outside. That way when it burps it burps the oil into a huge volume but the drainage now being 3/4 of an inch pipe thread oil won't have a chance to reach up to the hose that it's connected either to your Inlet or intake manifold.

Yep scratch your heads because the next one will be the crankcase ventilation which I believe that this is the actuall and only ventilation that is engine has and is reliable.

The pcv chamber sees, that i remember and besides the hole in the bottom-oil pan straw, it sees the chamber in the passenger side valve side cavity( it is true its however it is a tunnel from left to the right rear section of said valve cover cavities that meets in the middle or the PCV (3/8bsp small ass hole); and, that is also pen but at the timing cover volume). And then, BOTH bankS ARE Directly connected to the timing cover. So why this small pcv cavity was plaNTEd and designed this way? Gas flow from front to back or back to front?

So if you know both head valve cavities are open to the oil filler cap, then, you know that the crankcase ventilation plate has a hole (suspended in air), therefore it is venting both heads and crank at the same time to include the oil pan surface.

Imagine the ccv pulling gases faster? The rear pcv, being open-free free flow(let air in this way instead-"breath" it would let air in and bubbles in the oil pan generated ? and out the ccv along with the blow by acting as the pcv?. This would be the essence of the ventilation process. Or not?

It only makes sense that if you have an open chamber to the timing cover on both valvetrains then that's your main source for venting gases. On top of that that section is also venting the oil pan area sorry for the redundancy.

Well it seems like there's a change paradigm in terms of ventilating who. It only makes sense sense to eliminate oil from here the intake system so why Plumb that into the intake or use a high vacuum Source 2 put that part of the engine like subaru? Itll be awesome to vent it? Or at least use the inlet or less vacumm source for it?

And so the CCV... use the vacuum to assist the engines need for relief it self. Its cleaner than the burping small-limited-oil vomit-prone-nonsense air/oil separator found under the pcv.

Utilize the STI AY PCV hose as yardstick and expand the idea to the small separator and the tiny holes from each valve coversthe fa20 has and bring that needed volume up and drain back through the same orifice!!! Btw there is an obstacle, its the pcv! Blocking oil from draining back into the chamber.


Sarcastically implying, to relocate the valve in a way that yields to and open for the oil to return back through the "Hororifice", thus a magical large one though. Set the "pc "valve if wanted, up and away, SEE the AY PCV to establish the idea. Simply there is to much vacuum inside the tunnel that connects the valve cover cavities that ends in pulling the oil from the "straw" in the oil pan, pcv side.

This fa20 has an oem engineered oil burning mechanism masked over as a pcv of the fa20. An EPA conflict. This is not a lightly find...

The fa20 pcv connection between the left and right valve covers is tooooooo small even if at its NA configuration.

These two, the ccv and pcv needs to be re evaluated. As the pcv in this thing should be letting fresh air in and the ccv be the pcv sucking or supplying gasses into the manifold. Ensure the fuel trims are done.

One more, why a mechanical vacuum pump that is only for the break booster ? (AT tranny) thinking this pump uses oil wouldn't one logic conclusion that its overwhelming the drainage via the small ass air oil separator? I already know that im being sarcastic and this cavity/pcv is just a top and bottom and a restricted connecting tunnel to the rear of each valve covers. Anyways this pump is present, but i believe that is not necessarily required to operate the AT transmission. Unless you know otherwise. Nope it is not needed.

Second wouldn't do any difference to the AT tranny to just switch the break booster to a normal intake vacuum source?

Third if is ok to leave the pump, would it be usefull for other vacuum needs? Such as fa20 can run super low compresion and seal those rings and run the bejesus out of the turbo 30psi plus?

Nope just toss this vacuum pump away.

Also do a vacuum flow test... Plumb a wet/dry vacuum cleaner into the pcv and try to measure the amount of oil that will come out. And do the same for the ccv, no oil right?. Additionally Pay attention to the effort of the vacuum cleaner on each one. If you can try to measure the vaccum efforts to suck per each of the said sides, one for pcv and the other of the other ccv side.

In another note, the fa20s brother, the ej20 has the exact same deal with its oil pan and the tube found in the ej20 oil pan.

Maybe is not exactly the same because K..B manufacturer fabricates the ej20s oil pan eliminating the direct connection of the oil pan to the rear AOS of the ej20. This IS a good flag for the fa20. As the ej20 engine oil pan AOS to oil pan connection is not mechanicaly needed and serves as yardstick for the fa20.

In conclusion, unless you know otherwise, the fa20 like the ej20 oil sump "draining tubes " are not providing anything to the engines operation. However by having these tubes connected to the AOSs itll increase the risk of filling up with oil the AOS that is linked to the PCV. These must be disconnected from the oil pan to provide a true free of oil ventilation (engine cross ventilation ).



My wish list: Motec, Hollinger paddleshift and an oil cooler and offers welcome.

Cachaho

Take care
out

[chewbacca]

Originally Posted by chewbacca

If this works for any the better...

Here's what making news and will more likely open eyes ears and the breathing that these fa20 engine needs in order to function correctly that is including natural aspirated.

It'll begin with the yardstick, comparing to a V8 breathing ports. None of these v or in line engines have, like the fa20, a tube on their oil pan connected via an o ring that leads to a cavity with some baffles to help oil separate before it reaches to a PCV valve such as the fa20. Oops to late oil went through the intake.

Therefore it yields to the crankcase ventilation, CCV, section of the fa20 however is more like a V8 typical breathing scenario. So that works specially the crankcase ventilation section that is neighbor to the oil filler cap of the fa20 that it can be very useful to generate A TRUELY GOOD ventilation and/or a spot where it can drain back oil.

On the opposite end there is that PCV valve but that's the tip of the iceberg. Why? It Is the small sissy-cavity that lies underneath the PCV valve of the fa20.

And if it is a an opportunity to explain that it might be able to reverse the use of a p c v so be it.

It will ask, the engine itself to please reverse that pcv over to the front and the crankcase from the rear of the block because the only thing that keeps us from improving the PCV would be the Bubbling.

if we vent the pcv crankcase ventilation, So having high vacuum at the crankcase ventilation on the front of the block the Hindus ventilation coming from the bottom of the oil pan via the pcv route, itll be exactly just like blowing through the straw of a Coca-Cola bottle, but the opposite itll have the oil to move from the straw up the separator making its way past the pcv valve and flooding the intake with oil.

Bubbles in the oil to the point where the pick up tube cavitate that's what is unaabling the use the front of the ventilation breather of the fa20? unlessssss The remove those rubber washers between the oil pan and the girddle. Agreed? If no please do provide insight please. And Nah there is no enough force to generate bubbles.

So it well could be that oil pan baffle plates may have been created eliminates the rubber washers. i might find it. Lmk which one does. Thank you in advanced. Nahhh the issue is the Tunnel that connects left and right valve cavities in the pcv oil separator behind the block, but would it hurt the engine to eliminate these rubber washers?

Or is it safe to operate this engine with a driled hole on the oil pan pcv oil separator tube aka straw. Acting Just like a craked straw while drinking coca cola. Lets only air through, thus, the gasses for the pcv! Serves the purpose right. It might work i believe so. Anyone?

The drainage now will be able to be free from suction in that part of the oil pan. Sure... there is that much oil coming down from the separators that there aren't actually needed for these rubber washers?

Anywho...

...Making it is difficult for the oil to be sucked up through the Breather called the PCV in this proposed case. So the positive ventilation can truely take place with a lot less oil mist. Logically oriented.

Simply at this point it will be great to have someone here that Homes shops and races/experience enough and all of that good stuff, perhaps if that person could help clarify and confirm this it will be absolutely great.

Furthermore, follow that cavity down until it meets the O-ring ring at the oil pan then the problem goes further down at the very bottom of the oil pan that little hole connects the PCV valve at the top making it a long straw with a stretch in the middle waiting for vacuum to suck up all the oil through the PCV at the same moment where the restricted left and right tunnel fills with the high speed gasses tries to merge into the tiny ass pcv hole, just like a Coca-Cola drink and a straw. As a reason why they have on the STIs PCV cavity so big that is almost twice as big. Well it is also how the breathing tales take place on the sti valve covers, there are two breathers on each side, not one small hole on the back of each valve covers like the fa20 ! And this is a small tunnel that meets in the pcv hole. There are few ideas here..add a couple of breather tubes on those valve covers and or what i came up with its similar.

So in order to create some flow of gases all you need the high pressure and another along with a low pressure one meaning vacuum on vacuum terms. This creates gas movement. Just hold on to this thought.

So let's say that you have accumulated so much oil like it does happen a lot in these catch cans and there is one in particular that is dirtier than the other and that kind of help us understand how is the PCV is acting up that's is burping and in some or many cases oil is being sucked up by adding vacuum generated at the intake or high source of vaccum.
And dont forget, that sucking up vacuum up this straw its or is it not lowering oil level near the pick up tube entrance?

Supposedly the "straw", the tubes of the oil pan, were added to "use the pick up tube suction force to invite the oil down from the pcv straw and the ccv better vented straw. This is an oxymoron. One side is saying hey I'm inviting you to come over oil so I can put you through the oil pump and then the other one says wait a minute I've been sucked up by vacuum I'll be back later.

It has the one way check valve keep in mind this for Force induction at the intake sourcing from intake manifold . So guess what's needed what's needed is that huge tank with machined the PCV threads to 3/4 of an inch pipe so you can rest assured that there is no static energy enough to keep the oil together while is being sucked up into the intake or through the vacuum lines. So the s t i a y PCV hose look into it.

Well this case with the fa20 one must have to increase in proportion to the small air oil separator it has and generate that additional volume outside. That way when it burps it burps the oil into a huge volume but the drainage now being 3/4 of an inch pipe thread oil won't have a chance to reach up to the hose that it's connected either to your Inlet or intake manifold.

Yep scratch your heads because the next one will be the crankcase ventilation which I believe that this is the actuall and only ventilation that is engine has and is reliable.

The pcv chamber sees, that i remember and besides the hole in the bottom-oil pan straw, it sees the chamber in the passenger side valve side cavity( it is true its however it is a tunnel from left to the right rear section of said valve cover cavities that meets in the middle or the PCV (3/8bsp small ass hole); and, that is also pen but at the timing cover volume). And then, BOTH bankS ARE Directly connected to the timing cover. So why this small pcv cavity was plaNTEd and designed this way? Gas flow from front to back or back to front?

So if you know both head valve cavities are open to the oil filler cap, then, you know that the crankcase ventilation plate has a hole (suspended in air), therefore it is venting both heads and crank at the same time to include the oil pan surface.

Imagine the ccv pulling gases faster? The rear pcv, being open-free free flow(let air in this way instead-"breath" it would let air in and bubbles in the oil pan generated ? and out the ccv along with the blow by acting as the pcv?. This would be the essence of the ventilation process. Or not?

It only makes sense that if you have an open chamber to the timing cover on both valvetrains then that's your main source for venting gases. On top of that that section is also venting the oil pan area sorry for the redundancy.

Well it seems like there's a change paradigm in terms of ventilating who. It only makes sense sense to eliminate oil from here the intake system so why Plumb that into the intake or use a high vacuum Source 2 put that part of the engine like subaru? Itll be awesome to vent it? Or at least use the inlet or less vacumm source for it?

And so the CCV... use the vacuum to assist the engines need for relief it self. Its cleaner than the burping small-limited-oil vomit-prone-nonsense air/oil separator found under the pcv.

Utilize the STI AY PCV hose as yardstick and expand the idea to the small separator and the tiny holes from each valve coversthe fa20 has and bring that needed volume up and drain back through the same orifice!!! Btw there is an obstacle, its the pcv! Blocking oil from draining back into the chamber.


Sarcastically implying, to relocate the valve in a way that yields to and open for the oil to return back through the "Hororifice", thus a magical large one though. Set the "pc "valve if wanted, up and away, SEE the AY PCV to establish the idea. Simply there is to much vacuum inside the tunnel that connects the valve cover cavities that ends in pulling the oil from the "straw" in the oil pan, pcv side.

This fa20 has an oem engineered oil burning mechanism masked over as a pcv of the fa20. An EPA conflict. This is not a lightly find...

The fa20 pcv connection between the left and right valve covers is tooooooo small even if at its NA configuration.

These two, the ccv and pcv needs to be re evaluated. As the pcv in this thing should be letting fresh air in and the ccv be the pcv sucking or supplying gasses into the manifold. Ensure the fuel trims are done.

One more, why a mechanical vacuum pump that is only for the break booster ? (AT tranny) thinking this pump uses oil wouldn't one logic conclusion that its overwhelming the drainage via the small ass air oil separator? I already know that im being sarcastic and this cavity/pcv is just a top and bottom and a restricted connecting tunnel to the rear of each valve covers. Anyways this pump is present, but i believe that is not necessarily required to operate the AT transmission. Unless you know otherwise. Nope it is not needed.

Second wouldn't do any difference to the AT tranny to just switch the break booster to a normal intake vacuum source?

Third if is ok to leave the pump, would it be usefull for other vacuum needs? Such as fa20 can run super low compresion and seal those rings and run the bejesus out of the turbo 30psi plus?

Nope just toss this vacuum pump away.

Also do a vacuum flow test... Plumb a wet/dry vacuum cleaner into the pcv and try to measure the amount of oil that will come out. And do the same for the ccv, no oil right?. Additionally Pay attention to the effort of the vacuum cleaner on each one. If you can try to measure the vaccum efforts to suck per each of the said sides, one for pcv and the other of the other ccv side.

In another note, the fa20s brother, the ej20 has the exact same deal with its oil pan and the tube found in the ej20 oil pan.

Maybe is not exactly the same because K..B manufacturer fabricates the ej20s oil pan eliminating the direct connection of the oil pan to the rear AOS drain tube of the ej20. This IS a good flag for the fa20. As the ej20 engine oil pan AOS to oil pan connection is not mechanicaly needed and serves as yardstick for the fa20.

In conclusion, unless you know otherwise, the fa20 like the ej20 oil sump "draining tubes " are not providing anything to the engines operation. However by having these tubes connected to the AOSs itll increase the risk of filling up with oil the AOS that is linked to the PCV. These must be disconnected from the oil pan to provide a true free of oil ventilation (engine cross ventilation ).



My wish list: Motec, Hollinger paddleshift and an oil cooler and offers welcome.

Cachaho

Take care
out