This is for all of you who cannot understand an explanation but would rather focus on this so called REAL OCC LOL th-cam.com/video/rMzFMcHrAyU/w-d-xo.html
@@marvincalumpit1107 mukhang wala brod. Eto yung patunay na mag kaiba yung marunong mag basa sa marunong umintindi kung ano yung binasa. Malamang bagsak to sa reading comprehension. Hahahaha
If you are destroying your engine with a oil catch can then none of you are doing your catch can correctly. The air slows down not cause of the line or anything like that. The air slows down cause of the large volume of the can and then is sucked right back out at the same speed. A water separator is not the same as a oil catch can. A oil catch can is having air pushed in one side and sucked out the other side. A water separator is only forcing air through. So again if your engine is damaged from a catch can, then you installed it wrong.
Exactly, the thing is to have as small hose length as possible, and I use just stainless dishwasher ball, these are letting the flow to pass, and still sepaeate the oil. In 3000km it collected about 300g of pure oil.
@@2WheelDerness why would the can catch oil and let air with gas pass? Wouldn't gas cause problems just like oil does? And if so, why don't we just cancel the whole thing and let the engine sucks fresh air instead?
@@ajsh3000 well, main issue is that this oil with air from engine case (needs to eject the expansion gas) is injected back to the intake and in combination with the carbon from egr makes a paste which close the intake and build on the valves, piston and rings. By getting rid of oil, the exhaust carbon dus have no adhesion substance and will just get to combustion chamber than ejected. Just blocking the vent will create lots of gaskets issue. Leaving the hose in open air will work but create fumes that polute, and also some of them will get back to the car interior and is bad to inhale them.
@@ajsh3000the pcv and occ are not only about separation. On modern cars the gases also enrich the air when it is recycled back into the mix lowering temps and increasing mpg. What the poster does not realize is most modern day cars have a restriction inline with this. With a catch can you are suppose to remove the pcv valve to have free flow and use correct lines that allow short distances with no compromises to the flow. Most modern cars mainly turbo charged do this
i actually tried this on my hilux diesel engine d4d, i had a provent occ installed, when i lifted the dipstick a lot of smoke was coming out and a little oil, when i remove the occ and put the stock hose back on there was no more smoke. i also tried it on my suzuki celerio gas with an occ the same with the one you use on the other video, it doesnt have a brass filter inside, there was no oil/smoke coming out as a lifted the dipstick during idle but when i ask someone to rev the engine oil begun to come out, i tried it without occ and oil did not come out anymore idle or rev. i think its true that the occ really hinders the flow of blowby out the engine. good thing i just had it installed less than a month, i will cut my losses and just put the stock hoses back on. thank you very much for an informative video.
Provent 200, they are designed for diesel engines, very low restriction, and they can return oil to the sump. Your example of the pneumatic air/water separator is naturally far more restrictive and it operates at times near 100 psi. The crankcase pressure/vacuum is general only a few psi or less.
Great presentation! But I disagree with one minor detail. The OCC works great if used properly by not using the bronze filter. The filter is a micron filter and easily clogs with oil passing through thus restricting air flow. My remedy was to install steel wool with a down draft tube at the bottom. stainless steel scrubber flows alot more air while still maintaining the "catch" effect.
That bronze filter clogged up on mine too and caused my valve cover and Vanos gasket to start leaking. I was suspicious about that filter the day I purchased it
The primary and sole reason the oil catch can is there catch oil and debris from build up in the manifold. It is a preventative measure over the course of the engines life to keep the valves and combustion chamber cleaner. When installed correctly, they do not harm or cause any improper stress on the motor. They are designed to work efficiently with direct injected motors. The catch part of the catch can is there to catch oil droplets and oil droplets containing contaminants. You do not want oil vapor leaving the crank and getting into the manifold. This process helps keep the air clean and economy of the motor. When bought and installed correctly they have been proven through motor cycling tests to help reduce buildup and improve motor performance.
Great info. It settled the decision for me and tied a couple things together. When oil is blowing up a dipstick, it is a likely clue that your PCV valve is becoming clogged. A dipstick that blows off its seat is a sign that there’s an extremely restricted flow like a stuck closed or near fully clogged PCV valve.
The problem is he used a small “catch can”. When you use a properly sized and designed one you wont have these issues. And if what he is saying is true then why not put the port to the crank case instead of the valve cover where there is a restriction to the crank case. He most likely created this video just to get views and not to be accurate. Scotty Kilmer is another one to be careful with. Hes got millions of subscriber but no acknowledgment in the car community.
@@pazsion NO they don't. Diesels have NO intake vacuum operate to a PCV valve. Diesels have CDR valves or nothing at all... You clearly have NO CLUE what you are talking about..
Ohhh this made me convinced more. This is the explanation why it will just affect much engine life. Didnt read any comments explains why.. thanks much sir. Appreciated much.
Good video, I expanded it. In the BMW N55, even more oil got into the system, pressure builds up in the engine and entrains additional oil. I even increased the line from the engine to the turbo a bit, but brought it back to the original length and lo and behold, everything is dry...I hope for a lower flow rate due to the thicker connection so that it can draw even less liquid from the engine...
Two things, you have diesel engine and second the bronze filter is known to cause issues. I say on direct injection naturally aspirated engine the catch can is must.
Try it with an OCC that’s made for the vehicle, not one that’s made for High Pressure Air. If you use one that is set up for proper air flow and pressure, you won’t have any issues. If you get a cheap one that’s just using basic media, then it’s probably not going to work and do as you described above.
Thanks for that information. I had an occ, but experienced a flat spot in acceleration. It recently unwound the pot due to vibration and I lost it on the highway. To prevent oil spitting on my exhaust and unfiltered air being sucked into my intake, I bypassed what was left of the occ. The flat spot is gone and my engine feels more responsive. After seeing this video, I’m not replacing the occ! Thanks heaps 😄👍🏼
Very interesting. Great demonstration to prove the point. At a surface level, one would think the air intake would be enough and it should be able to vent without a return, but your video shows exactly what you are saying.
Hi! Great educational video. But how about if we bypass the breather hose (free outflow)? Is there any effect to the engine? Reason people do this is, for turbo engine it will re-route to intercooler thru turbo compressor. Later it will make it clog with oil. Thanks.
Haha I knew I wasn’t crazy !! I have too one of these replica mishimoto oil catch cans that contain the broNze filter which didn’t take long to clog. I started to notice a lot of leaking around my can and also leaking around my valve cover and Vanos gasket. Glad I noticed it quickly and remove the bronze filter and now the oil leaking around my valve cover has stopped. I’m considering just venting to atmosphere using a differnt can
There are versions of the same oil catch can you had on the paper, without that bronze filter. Air restriction is not required to collect the vapours and make them droplets. It just needs baffles. Use stainless steel sponges or so. They deflect the vapours, cool them and also let the crankcase breathe as easy as it needs. I ask for your opinion too on my theory
@@gheorghinacov6008 it doesnt have an output or hose going to the intake manifold. a bigger custom alluminum tank with a big filter (not those cute round filters, it'll just restrict the flow of oil and vapor mix) a big filter wil do the job of separating the oil and vapor. oil remains in the tank and vapor just evaporate.
and yes i have a clean throttle, so is inside my intake manifold, no oil vapors sticking in the intake walls which gathers dust and dirt. yes i do always have oils on the OCC, especially whenever i rev highs
Unfortunately this video is a sham!!! The air water separator the person uses is designed to be used for a high pressure compressor! To compare it with a catch can is a farce! If he would use a catch can (Not a air water separator designed to be used for very high PSI) the oil spattering from the dip stick would never happen. I have an oil catch can and performed the same test with and without an oil catch can. The results are shocking!!!! No oil spatter at all for either one!
Good day Sir. As always, thank you for the very informative video. May I ask Sir, what will happen if the occ has big enough cavities that will not hinder the flow of blow by gases?
I agree with you he had the wrong type of filter,you can use stainless dish cleaner sort of like wire wool ,much better flow,dont think his truck was turboed either,more blow by on older engines
Thanks for the video. I had tried OCC and air separator on my diesel MB and GDI Hyundai. They both are different on air flow restrictions. The air separator shall not use on car engine. Blows gaskets! Using a quality with big flow OCC works for my diesel and GDI.
It is true for a diesel engine, but I find it very useful for a gasoline engine, especially one that works on direct injection of gasoline. I noticed after installing an oil catch that the black color disappeared in the exhaust, but before installing it, there was a permanent black color in the exhaust. I think installing an oil catch is important for the engine that works on direct injection for gasoline.
@@NASER725 thanks! I think the same of you, every GDI Engine need this. In my case, I have some bad emissions in the Exhaust and I think a OCC will work because the Engine Will has a extra gases filter.
Yes this is possibly true, i have tried the same and there i have found that there are engine oil leaks coming from the lower crankcase as well as blowby gases coming out from the oil dipstick when i installed OCC in my 4JJ1 Diesel Engine turbo
What about ones like racing lines catch can for a golf 7r with just a baffle plate but no filter media restriction like your seeing in that typical oil catch can. Would you not get the best of both worlds then?
how about occ during harsh winters? i live in canada and i mostly park outside the driveway. ive read and seen videos where occ freezes and the pressure goes to the dipstick causing oil splashes.
I have a ram 2500 with a Cummins 6.7 engine. It has a crank case vent filter that filters the crank case exhaust. Doesn’t that slow the venting the same as a catch can ?
What an Interesting video. I'm assuming that the car you used in your illustration is a diesel. What interested .e was when you attached that one way valve and got blow out through the dip stick tube. A faulty/blocked PCV can also cause blow out through the dip stick tube. I know this through person experience. However what about a V6 petrol vehicle like the Lexus is250? What is your view about fitting an OCC to one of these cars?
Never had a problem I run one on my silverado for 2 years now. I took the intake off cleaned it and also cleaned the valves that was disgusting. Installed a 30$ can took it apart few weeks ago and it was pretty clean still. I never let the can over fill and I clean the brass filter with carb cleaned every oil change.
Thank you for the video. I have one question. It is about the breather port on the valve cover that is directed into the air intake hose. I have seen some car owners modify it by installing a small air filter on the breather port and it stops there, not connected to the air intake hose in this case. What do you think about this?
I actually done that to my car, I disconnected the breather port hose from the valve cover down the ground and install small air filter on the intake hose, works fine with me less hassle cleaning throttle body all the time.
I’m dealing with a 2.4 eco tech where the PCV system is fed by a tiny metering hole in the intake which clogs constantly since it’s directly below the throttle body which is directly below the port on the airbox, so crud drips down almost in a straight line from the PCV exhaust right into the PCV intake port….. so you sort of have to choose the cause of your blow by, extra tubes and filters or clogged PCV intake.
Great explanation, thank you so much. I bought a ssangyong musso 2006 turbo diesel 2.9L a year ago , the inlet manifold was found full of black paste. the engine ventilation from the rocker cover is connected to after air filter and before the turbo. what do I need to do to prevent the build up of carbon and oil at the inlet manifold again please? thanks in advance
I had Provent 200 installed on my 2016 Everest 3.2L on year 2018, never had problem ever since. But, recently I have encountered the strange loud humming sound during low speed acceleration, sounds like a modified exhaust pipe blowing, or the subwoofer playing the 40Hz tone, the whole cabin can feel the vibration. The issue was intermittent, my initial thought was the EGR system, dirty or EGR value malfunction... Ran the Forscan, no any code found and everything was fine. So I went to clean the EGR, Intake Manifold, Throttle, thanks to the OCC, the EGR system had little carbon, but it was dry. After assemble the everything back, I expect the loud humming sound would be gone, unfortunately, the noise was still there. I suddenly recall that I had OCC installed and I might as well to check if the oil can is full, or the filter is blocking the blowby gas, becoz the filter is almost 5 years old. The next day, I removed the OCC filter and decided to give it a try, Vola~ the engine humming sound was gone, everything sounded normal again. This video explanation make sense, OCC can alter engine performance, or do damage to the engine, especially with those cheaper OCC. For me, I will just bypass OCC for now, since the new filter is too expensive, I would rather clean EGR system once a year.
In addition to Provent it has bigger tubes which is 25mm compare to other OCC in the market that is why is does not have restriction when it comes to blow by gases
Hi, I love your videos and I'm certainly learning a lot. Can you also share your thoughts regarding Diesel Pre-Filter Kit? Thanks a lot! Looking forward to more of your videos!
You should watch reputable mechanic vloggers not this uneducated frustrated mechanic/engineer 😂 watch Scotty KILMER and other respectable mechanic vloggers instead of watching this wanna be. 😂
good day sir, how about suv with turbos? like my case, an isuzu 4jg2 with excessive blowby from the breather. it always carry oil, does an occ help to lessen it? will it be more beneficial?
I have tried a mishimoto occ on two of my gasoline engined cars and Ive noticed that when i rev my cars hard , the catch can does catch a lot of oil but it also causes a leak at my oil filter gasket. I figured that the blow by gases arent venting out as efficiently and its pressurizing the crankcase . Thanks for the eye opener , shall un- install the catch cans from my cars
I'm thinking about buying a Catch Can for my Camaro ZL1. I'm going with Mighty Mouse since they have what they call a mesh which I'm assuming is the same thing as steel wool. I hear elite engineering is also a great Can but a lot camaro owners seem to go more with Mighty Mouse. Let me know what you guys think about it.
Thanks. Interesting. However the dipstick pipe is underneath the oil level. So it does not affect the spray out. But with to much restriction or orfice as your air dryer, it restrict to much the blow buy on the dipstick pipe. 😊
Thank you for that video! Very well explained :) Had to experience this issue first hand. Oil spilled out my engine under boost pressure, now I know why. Gonna throw out my OCC immediatly
You forgot to mention that on a diesel there is no vacuum in the intake. I have not seen any butterfly flaps on that intake system. And most diesels have no PCV valve. they just have a tube out of the headcover. It's always at atmospheric pressure so the catch can setup needs to be changed. The OCC setup with baffles and the filter inside is used on most gas cars that have Vacuum in the intake and it works great there cause it's being drawn out. Most diesel engines have no vacuum in the intake and use the OCC setup with baffels, ehich then is usually vented to open atmosphere through an outside open filter or intake without internal filter cause it is being pushed out with a positive pressure in the crank case. For a diesel we usually use a bigger catch can or larger diameter path ways so the air slows down but the volume is the same
What about a MAP based gasoline engine where the pcv is removed and all that's left is two identical air filters as breathers, venting to atmosphere? A lot of turbo gasoline high horsepower enthusiasts remove the pcv - and I always wondered if that caused more harm than good. I do know that at high psi there is a lof of crank case pressure, thus they have to remove it quickly with no pcv in place
I've built, tuned a great number of performance engines over the years and I've made and learned from a ton of mistakes, lol. Removing the PCV without running another form of crankcase evac is a bad idea. Those element breathers atop valve covers do absolutely nothing for venting the crankcase under load. You absolutely need suction on one side and a breather on the other. Unfortunately MAP and vacuum based efi systems, and some performance carb metering circuits see the PCV circuit as a vacuum leak and have a hard time controlling the IAC at idle. This isn't a problem at off idle RPMs as far as I can tell so far. Fortunately a company called M/E Wagner makes a dual flow, fully adjustable PCV valve that is a great solution. It has two ranges (roughly 0-5"Hg / 5+" Hg) so you can cut down or cut out the PCV flow at lower signal ( like 0 - 3" Hg) and open up the flow at the higher revs ( like 5-10" Hg) and still reap the benefits of PCV vacuum evacuation under load and cruise where most of your blowby occurs anyways. Also, run a catch can. I've never seen a healthy motor act like it did in the above video just from a catch can install. Thats gotta be a pretty worn out set of rings.
you are correct in your case as the flow is slowed a lot via your line having a small drier. if you have a larger air drier you have more surface area you will haved much much much more flow. same applies to OCC. and ditch the bronze filter. OCC cans, not necessary. Id suggest a can style occ that uses swirl and not filter. Very little to no loss of flow and velocity. A high output direct injection turbo engine really needs a OCC to evacuate blow by and crank case vapors as to prolong valve cleanliness. My experience in high output performance. They work as intended with no rising crank case pressure or loss of flow as ive installed and tested, they did not have bronze filtration as well.
Could you please do a video on exhaust crank case ventilation systems you do such great video and information. I'd like to see pros an cons to exhaust evacuation systems on engines where instead of intake it uses exhaust manifold with check valves
This is why you don't run a cheap catch can with one of those silly bronze filter things. Proper catch cans use baffles, or centrifugal force, to force oil droplets to collect on surfaces inside the catch can without impeding the airflow that much. Also, that engine has a lot of blowby...
I did install OCC in my 4d56 but I did removed the filter element so that pressure will exit quickly, maybe? Yeah, it is doing its job it collects a little oil but I learned a lot about OCC on this video tnx.
Hi, If my OCC get filled up all the way to the top and it never get empty, even freezes up on winter. can this cause damage to the engine. I am just trying to see if this is what cause my timing to jump on my Jeep Grand Cherokee. please I would appreciate your answer..
In any improvement you do there are always tradeoffs. Increase oil crank pressure is the negative of OCC, but it can be negated by keeping the screen clean and draining everytime you do an oil change. Toyota has managed very well with oil seperators that not just take out the oil but then have the extra pressure of putting it back into the pressured crank. Drag and circle track racers often use vacuum pumps on chevy v8's to reduce oil crank pressure, because they can gain a few more horsepower with negative pressure. The benefits to not putting the oil vapor gunk back into the engine through the intake are huge and are more than carbon buildup on the back of the valves (which is really bad in its self). Other benefits are increase octane, cleaner engine all through the intake, valve body, longer life of the catalytic converter, etc.
How about just venting pvc to atmosphere and plugging the hole to the intake. Would it damage the engine? I font care if its illegal just dont want to damage engine
Yeah but this works for boosted engines. I have a 2005 Pontiac GTO LSA suoer chargered and I have a catch can. The blow by oil goes into the catch can and I drain it once every 2 months .. or depending on how much I drive it. This OVC may not work for OEM applications but they are necessary for boosted engines
What a logical explanation. Please do one explaining Water-Meth Injection in a Diesel engine. I hear people claiming 20% more power and up to 5 MPG more wilst cleaning your engine.
Huli ko na to na panood. Masyado rin akong nag paniwala sa iba, na dala rin ako don sa oil na nacocollect kala ko i kakabuti sa makina, nung ni install ko last year occ ko walang talsik sa dipstick nung wala pa occ, ngayon meron na kahit, kahit binalik ko na sa dating hose may talsik na.
So I have just added an OCC to my mustang. I put around a 100 miles on it and I can tell that there is a residual of oil within the can and stinks like oil vapors, but no liquid forming at the bottom of the can yet. I was simply checking to see if there was anything in it at the 100 miles after install. I didn't think there would be, but my reason in checking it also, was my car seems to be running poorly to a degree. I noticeable hitch when I get on it. I'm in the process changing out the pcv as it looks old and for a short time the pcv hose was not connected as we just put a supercharger on it, and we had to run the passenger side pcv hose to cc and the out from the air intake tube to the cc. From the drivers side valve cover, we ran a hose to the air intake tube just after the maf. I'm just worried I'm not getting good crank case pressure relief with this install, or maybe this has nothing to do with it and I'm running really rich. I'm in the process of checking that out as well. Any thoughts would be appreciated Thanks
@@leishi1950it just so happened to be chilly the day I checked the reservoir. good results finally when it warmed up and put some miles on it. It was breathing just fine through the pcv.
@@alfenner3309 that is great to hear which occ do you put in. I'm in the same place. Worries about the built up pressure in the crankcase and also worries about the hose cannot handle vacuum maybe clapsed
My catch can came with a tiny cone shaped air filter that can be placed on top. Im guessing this is intended for a vent to air system? So i could simply plug the pcv hole on the intake and just let it vent to air through the cone shaped filter 🤔
Filter inside OCC will increase the resistance and slowing down the breather airflow, i recommend you to instal 2 small OCC so it can match the airflow speed.
Hello brother can you tell me why I see white smoke coming from oil cap in the morning and the engine is cold in first start and that white smoke same when the engine is hot
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This is for all of you who cannot understand an explanation but would rather focus on this so called REAL OCC LOL th-cam.com/video/rMzFMcHrAyU/w-d-xo.html
Di mo ata ni click yung link kaya pinagtatawanan ka lol@@techtipsbuddy
@@techtipsbuddy ni click mo ba yung link?😅
@@marvincalumpit1107 mukhang wala brod. Eto yung patunay na mag kaiba yung marunong mag basa sa marunong umintindi kung ano yung binasa. Malamang bagsak to sa reading comprehension. Hahahaha
If you are destroying your engine with a oil catch can then none of you are doing your catch can correctly. The air slows down not cause of the line or anything like that. The air slows down cause of the large volume of the can and then is sucked right back out at the same speed. A water separator is not the same as a oil catch can. A oil catch can is having air pushed in one side and sucked out the other side. A water separator is only forcing air through. So again if your engine is damaged from a catch can, then you installed it wrong.
Exactly, the thing is to have as small hose length as possible, and I use just stainless dishwasher ball, these are letting the flow to pass, and still sepaeate the oil. In 3000km it collected about 300g of pure oil.
@@2WheelDerness why would the can catch oil and let air with gas pass? Wouldn't gas cause problems just like oil does? And if so, why don't we just cancel the whole thing and let the engine sucks fresh air instead?
@@ajsh3000 well, main issue is that this oil with air from engine case (needs to eject the expansion gas) is injected back to the intake and in combination with the carbon from egr makes a paste which close the intake and build on the valves, piston and rings. By getting rid of oil, the exhaust carbon dus have no adhesion substance and will just get to combustion chamber than ejected. Just blocking the vent will create lots of gaskets issue. Leaving the hose in open air will work but create fumes that polute, and also some of them will get back to the car interior and is bad to inhale them.
@@ajsh3000the pcv and occ are not only about separation. On modern cars the gases also enrich the air when it is recycled back into the mix lowering temps and increasing mpg. What the poster does not realize is most modern day cars have a restriction inline with this. With a catch can you are suppose to remove the pcv valve to have free flow and use correct lines that allow short distances with no compromises to the flow. Most modern cars mainly turbo charged do this
The good of the catch can is that the motor will not eat the own shit again and again
I've been using occ in my vehicle for 5 yrs, 100 k miles, till now engine runs smooth as silk
i actually tried this on my hilux diesel engine d4d, i had a provent occ installed, when i lifted the dipstick a lot of smoke was coming out and a little oil, when i remove the occ and put the stock hose back on there was no more smoke. i also tried it on my suzuki celerio gas with an occ the same with the one you use on the other video, it doesnt have a brass filter inside, there was no oil/smoke coming out as a lifted the dipstick during idle but when i ask someone to rev the engine oil begun to come out, i tried it without occ and oil did not come out anymore idle or rev. i think its true that the occ really hinders the flow of blowby out the engine. good thing i just had it installed less than a month, i will cut my losses and just put the stock hoses back on. thank you very much for an informative video.
Provent 200, they are designed for diesel engines, very low restriction, and they can return oil to the sump. Your example of the pneumatic air/water separator is naturally far more restrictive and it operates at times near 100 psi. The crankcase pressure/vacuum is general only a few psi or less.
Great presentation! But I disagree with one minor detail. The OCC works great if used properly by not using the bronze filter. The filter is a micron filter and easily clogs with oil passing through thus restricting air flow. My remedy was to install steel wool with a down draft tube at the bottom. stainless steel scrubber flows alot more air while still maintaining the "catch" effect.
Agree the bronze increases pressure. There are some with relief valves. Spend a bit of money on a good one.
So which one should I buy?
@@stevijay2953 process west SEPR8R. Thats what i have.
The bronze filte hev to be the output not the input
That bronze filter clogged up on mine too and caused my valve cover and Vanos gasket to start leaking. I was suspicious about that filter the day I purchased it
The primary and sole reason the oil catch can is there catch oil and debris from build up in the manifold. It is a preventative measure over the course of the engines life to keep the valves and combustion chamber cleaner. When installed correctly, they do not harm or cause any improper stress on the motor. They are designed to work efficiently with direct injected motors. The catch part of the catch can is there to catch oil droplets and oil droplets containing contaminants. You do not want oil vapor leaving the crank and getting into the manifold. This process helps keep the air clean and economy of the motor. When bought and installed correctly they have been proven through motor cycling tests to help reduce buildup and improve motor performance.
Its all the explanation i needed to convice me just to clean the valves and the intake system rather than having a OCC. Thanks.
Great info. It settled the decision for me and tied a couple things together. When oil is blowing up a dipstick, it is a likely clue that your PCV valve is becoming clogged. A dipstick that blows off its seat is a sign that there’s an extremely restricted flow like a stuck closed or near fully clogged PCV valve.
It's a diesel , diesels do NOT have PCV valves,
Yes they do
The problem is he used a small “catch can”. When you use a properly sized and designed one you wont have these issues. And if what he is saying is true then why not put the port to the crank case instead of the valve cover where there is a restriction to the crank case. He most likely created this video just to get views and not to be accurate. Scotty Kilmer is another one to be careful with. Hes got millions of subscriber but no acknowledgment in the car community.
@@pazsion NO they don't. Diesels have NO intake vacuum operate to a PCV valve. Diesels have CDR valves or nothing at all... You clearly have NO CLUE what you are talking about..
@@TheFARM2019 Diesels have ZERO need for a catch can. It has no benefit on a diesel.
Ohhh this made me convinced more. This is the explanation why it will just affect much engine life. Didnt read any comments explains why.. thanks much sir. Appreciated much.
Good video, I expanded it. In the BMW N55, even more oil got into the system, pressure builds up in the engine and entrains additional oil. I even increased the line from the engine to the turbo a bit, but brought it back to the original length and lo and behold, everything is dry...I hope for a lower flow rate due to the thicker connection so that it can draw even less liquid from the engine...
Two things, you have diesel engine and second the bronze filter is known to cause issues.
I say on direct injection naturally aspirated engine the catch can is must.
Try it with an OCC that’s made for the vehicle, not one that’s made for High Pressure Air. If you use one that is set up for proper air flow and pressure, you won’t have any issues. If you get a cheap one that’s just using basic media, then it’s probably not going to work and do as you described above.
lol whatever floats your boat.
@@MrDIYerHe brings up a great point, if you are going to show an OCC causes those issues, then show those issues occurring with an actual OCC.
Thanks for that information. I had an occ, but experienced a flat spot in acceleration. It recently unwound the pot due to vibration and I lost it on the highway. To prevent oil spitting on my exhaust and unfiltered air being sucked into my intake, I bypassed what was left of the occ. The flat spot is gone and my engine feels more responsive. After seeing this video, I’m not replacing the occ! Thanks heaps 😄👍🏼
Big agree Sir, palaging nanood about tutorials mo sir. GODBLESS
Why i dont install an OCC using REAL OCC part2 lol
th-cam.com/video/rMzFMcHrAyU/w-d-xo.html
Thank you for sharing your knowledge on this matter your explanation is perfect.
Excellent presentation with theoretical and practical evidence. I’ll leave the catch can and delete the EGR instead on my Pajero. 👍🏻
Very interesting. Great demonstration to prove the point.
At a surface level, one would think the air intake would be enough and it should be able to vent without a return, but your video shows exactly what you are saying.
Hi! Great educational video. But how about if we bypass the breather hose (free outflow)? Is there any effect to the engine? Reason people do this is, for turbo engine it will re-route to intercooler thru turbo compressor. Later it will make it clog with oil. Thanks.
Haha I knew I wasn’t crazy !! I have too one of these replica mishimoto oil catch cans that contain the broNze filter which didn’t take long to clog. I started to notice a lot of leaking around my can and also leaking around my valve cover and Vanos gasket. Glad I noticed it quickly and remove the bronze filter and now the oil leaking around my valve cover has stopped. I’m considering just venting to atmosphere using a differnt can
There are versions of the same oil catch can you had on the paper, without that bronze filter. Air restriction is not required to collect the vapours and make them droplets. It just needs baffles. Use stainless steel sponges or so. They deflect the vapours, cool them and also let the crankcase breathe as easy as it needs. I ask for your opinion too on my theory
best comment so far, i too have a custom OCC, and i think i just designed it properly thats why i dont uave d same issue with the dipstick test
@@stockSOHC
Aside from the fact that yours is safe for the crankcase, is it effective too? I mean how is the output hose? Clean? Oily?
@@gheorghinacov6008 it doesnt have an output or hose going to the intake manifold. a bigger custom alluminum tank with a big filter (not those cute round filters, it'll just restrict the flow of oil and vapor mix) a big filter wil do the job of separating the oil and vapor. oil remains in the tank and vapor just evaporate.
and yes i have a clean throttle, so is inside my intake manifold, no oil vapors sticking in the intake walls which gathers dust and dirt. yes i do always have oils on the OCC, especially whenever i rev highs
Unfortunately this video is a sham!!! The air water separator the person uses is designed to be used for a high pressure compressor! To compare it with a catch can is a farce! If he would use a catch can (Not a air water separator designed to be used for very high PSI) the oil spattering from the dip stick would never happen. I have an oil catch can and performed the same test with and without an oil catch can. The results are shocking!!!! No oil spatter at all for either one!
Nice brother!
I am gonna be running both but it’s a Sbc 2 valve covers etc…
A vacuum pump is even better 👍🏻👍🏻👍🏻
Wow, you have completely rocked my world. I’m so confused what to do!
Good day Sir. As always, thank you for the very informative video. May I ask Sir, what will happen if the occ has big enough cavities that will not hinder the flow of blow by gases?
I agree with you he had the wrong type of filter,you can use stainless dish cleaner sort of like wire wool ,much better flow,dont think his truck was turboed either,more blow by on older engines
Very informative explanation. Tyvm sir.
Thanks for the video. I had tried OCC and air separator on my diesel MB and GDI Hyundai. They both are different on air flow restrictions. The air separator shall not use on car engine. Blows gaskets! Using a quality with big flow OCC works for my diesel and GDI.
It is true for a diesel engine, but I find it very useful for a gasoline engine, especially one that works on direct injection of gasoline. I noticed after installing an oil catch that the black color disappeared in the exhaust, but before installing it, there was a permanent black color in the exhaust. I think installing an oil catch is important for the engine that works on direct injection for gasoline.
What brand of OCC did you use? I have a Santa Fe 2017 GDI 2.4
@@javiergimenez5953
speedwow oil catch can
@@NASER725 thanks! I think the same of you, every GDI Engine need this. In my case, I have some bad emissions in the Exhaust and I think a OCC will work because the Engine Will has a extra gases filter.
Yes this is possibly true, i have tried the same and there i have found that there are engine oil leaks coming from the lower crankcase as well as blowby gases coming out from the oil dipstick when i installed OCC in my 4JJ1 Diesel Engine turbo
Well explained and shown!!!!
Thank you so much for the explanation. No occ for my truck.👍
What about ones like racing lines catch can for a golf 7r with just a baffle plate but no filter media restriction like your seeing in that typical oil catch can. Would you not get the best of both worlds then?
WHAT IS THE POSITIVE IN PCV OR POSITIVE CRANKCASE VENTILATION? th-cam.com/video/N5TCxmJPFuU/w-d-xo.html
OCC whit breathener will do it`s job, and it will not pull out oil. that`s about it
how about occ during harsh winters? i live in canada and i mostly park outside the driveway. ive read and seen videos where occ freezes and the pressure goes to the dipstick causing oil splashes.
Sir.,ive got a diesel land cruiser prado with 1kd engine., my car was blowing oil coming out from dipstick. Is it be cause of excessive blowby?
I have a ram 2500 with a Cummins 6.7 engine. It has a crank case vent filter that filters the crank case exhaust. Doesn’t that slow the venting the same as a catch can ?
Absolutely amazing explanation! Now I need to evaluate do I want to install a OCC‼
Do you even have diesel engine?
What an Interesting video. I'm assuming that the car you used in your illustration is a diesel. What interested .e was when you attached that one way valve and got blow out through the dip stick tube. A faulty/blocked PCV can also cause blow out through the dip stick tube. I know this through person experience.
However what about a V6 petrol vehicle like the Lexus is250? What is your view about fitting an OCC to one of these cars?
Makes sense I’m just going to purchase one without the bronze filter and mount it cose to the intake. Thanks for the video
Never had a problem I run one on my silverado for 2 years now. I took the intake off cleaned it and also cleaned the valves that was disgusting. Installed a 30$ can took it apart few weeks ago and it was pretty clean still. I never let the can over fill and I clean the brass filter with carb cleaned every oil change.
Wow! Thank you for this video!
Very interesting!!!! My unmodified petrol engine is pushing out the oilstick. This video helped me understand the phenomenon
Thank you for the video. I have one question. It is about the breather port on the valve cover that is directed into the air intake hose. I have seen some car owners modify it by installing a small air filter on the breather port and it stops there, not connected to the air intake hose in this case. What do you think about this?
I actually done that to my car, I disconnected the breather port hose from the valve cover down the ground and install small air filter on the intake hose, works fine with me less hassle cleaning throttle body all the time.
buen video m interesa tu informacion me motor es nuevo entonces no es recomendable el recuperador de aceite verdad ?
I’m dealing with a 2.4 eco tech where the PCV system is fed by a tiny metering hole in the intake which clogs constantly since it’s directly below the throttle body which is directly below the port on the airbox, so crud drips down almost in a straight line from the PCV exhaust right into the PCV intake port….. so you sort of have to choose the cause of your blow by, extra tubes and filters or clogged PCV intake.
And even with the filters gotta regularly take off the intake and clean it out…. Don’t buy an eco tech….
Great explanation, thank you so much.
I bought a ssangyong musso 2006 turbo diesel 2.9L a year ago , the inlet manifold was found full of black paste. the engine ventilation from the rocker cover is connected to after air filter and before the turbo. what do I need to do to prevent the build up of carbon and oil at the inlet manifold again please? thanks in advance
I had Provent 200 installed on my 2016 Everest 3.2L on year 2018, never had problem ever since. But, recently I have encountered the strange loud humming sound during low speed acceleration, sounds like a modified exhaust pipe blowing, or the subwoofer playing the 40Hz tone, the whole cabin can feel the vibration. The issue was intermittent, my initial thought was the EGR system, dirty or EGR value malfunction... Ran the Forscan, no any code found and everything was fine. So I went to clean the EGR, Intake Manifold, Throttle, thanks to the OCC, the EGR system had little carbon, but it was dry. After assemble the everything back, I expect the loud humming sound would be gone, unfortunately, the noise was still there. I suddenly recall that I had OCC installed and I might as well to check if the oil can is full, or the filter is blocking the blowby gas, becoz the filter is almost 5 years old. The next day, I removed the OCC filter and decided to give it a try, Vola~ the engine humming sound was gone, everything sounded normal again. This video explanation make sense, OCC can alter engine performance, or do damage to the engine, especially with those cheaper OCC. For me, I will just bypass OCC for now, since the new filter is too expensive, I would rather clean EGR system once a year.
Maintenance is key
In addition to Provent it has bigger tubes which is 25mm compare to other OCC in the market that is why is does not have restriction when it comes to blow by gases
Korek
Hi, I love your videos and I'm certainly learning a lot. Can you also share your thoughts regarding Diesel Pre-Filter Kit? Thanks a lot!
Looking forward to more of your videos!
I almost have OCC installed on my Montero but neglected having bought one after viewing your video. thanks
You should watch reputable mechanic vloggers not this uneducated frustrated mechanic/engineer 😂 watch Scotty KILMER and other respectable mechanic vloggers instead of watching this wanna be. 😂
Very informative 👍👍👍
good day sir, how about suv with turbos? like my case, an isuzu 4jg2 with excessive blowby from the breather. it always carry oil, does an occ help to lessen it? will it be more beneficial?
Salamat po sa napaka gandang paliwanag.👍
in your opinion, the provent 200 model can give the same problem?
A proper occ shouldn’t cause any restriction in air flow. Mine certainly doesn’t.
Lol ok
Great explanation and presentation!
I’ve been a gearhead for 60-years and I’ve never heard the abbreviation OCC. AnyWho, good video, so thanks for posting .
But would the OCC have the same negative effect on a gasoline engine instead of a diesel like yours?
Very clear SIR..
Thank you for sharing Sir
I have tried a mishimoto occ on two of my gasoline engined cars and Ive noticed that when i rev my cars hard , the catch can does catch a lot of oil but it also causes a leak at my oil filter gasket. I figured that the blow by gases arent venting out as efficiently and its pressurizing the crankcase .
Thanks for the eye opener , shall un- install the catch cans from my cars
WHAT IS BLOWBY? th-cam.com/video/aRIYtYpV5Hc/w-d-xo.html
Great explanation sir, naintindihan ko tlga kahit d ako automotive expert hehehe.
I'm thinking about buying a Catch Can for my Camaro ZL1. I'm going with Mighty Mouse since they have what they call a mesh which I'm assuming is the same thing as steel wool. I hear elite engineering is also a great Can but a lot camaro owners seem to go more with Mighty Mouse. Let me know what you guys think about it.
Thanks. Interesting. However the dipstick pipe is underneath the oil level. So it does not affect the spray out. But with to much restriction or orfice as your air dryer, it restrict to much the blow buy on the dipstick pipe. 😊
What about for turbo diesel engines?
The oil catch can I installed on my 3.5 Ecoboost works just fine. My oil dipstick does not squirt out oil while idling.
replace the occ with the stock breather hose and it will do the same thing.
Thank you for that video! Very well explained :) Had to experience this issue first hand. Oil spilled out my engine under boost pressure, now I know why. Gonna throw out my OCC immediatly
No you need a check valve
You forgot to mention that on a diesel there is no vacuum in the intake. I have not seen any butterfly flaps on that intake system. And most diesels have no PCV valve. they just have a tube out of the headcover. It's always at atmospheric pressure so the catch can setup needs to be changed. The OCC setup with baffles and the filter inside is used on most gas cars that have Vacuum in the intake and it works great there cause it's being drawn out.
Most diesel engines have no vacuum in the intake and use the OCC setup with baffels, ehich then is usually vented to open atmosphere through an outside open filter or intake without internal filter cause it is being pushed out with a positive pressure in the crank case. For a diesel we usually use a bigger catch can or larger diameter path ways so the air slows down but the volume is the same
I have a occ breather tank it doesnt have a bronze filter will it still do this high pressure thing
Please 🙏 give me a solution to stop the oil coming in my air intake with out catch can
What about a MAP based gasoline engine where the pcv is removed and all that's left is two identical air filters as breathers, venting to atmosphere? A lot of turbo gasoline high horsepower enthusiasts remove the pcv - and I always wondered if that caused more harm than good. I do know that at high psi there is a lof of crank case pressure, thus they have to remove it quickly with no pcv in place
I've built, tuned a great number of performance engines over the years and I've made and learned from a ton of mistakes, lol. Removing the PCV without running another form of crankcase evac is a bad idea. Those element breathers atop valve covers do absolutely nothing for venting the crankcase under load. You absolutely need suction on one side and a breather on the other. Unfortunately MAP and vacuum based efi systems, and some performance carb metering circuits see the PCV circuit as a vacuum leak and have a hard time controlling the IAC at idle. This isn't a problem at off idle RPMs as far as I can tell so far. Fortunately a company called M/E Wagner makes a dual flow, fully adjustable PCV valve that is a great solution. It has two ranges (roughly 0-5"Hg / 5+" Hg) so you can cut down or cut out the PCV flow at lower signal ( like 0 - 3" Hg) and open up the flow at the higher revs ( like 5-10" Hg) and still reap the benefits of PCV vacuum evacuation under load and cruise where most of your blowby occurs anyways. Also, run a catch can. I've never seen a healthy motor act like it did in the above video just from a catch can install. Thats gotta be a pretty worn out set of rings.
keep doing helpful videos sir, keep it up God bless
you are correct in your case as the flow is slowed a lot via your line having a small drier. if you have a larger air drier you have more surface area you will haved much much much more flow. same applies to OCC. and ditch the bronze filter. OCC cans, not necessary. Id suggest a can style occ that uses swirl and not filter. Very little to no loss of flow and velocity. A high output direct injection turbo engine really needs a OCC to evacuate blow by and crank case vapors as to prolong valve cleanliness. My experience in high output performance. They work as intended with no rising crank case pressure or loss of flow as ive installed and tested, they did not have bronze filtration as well.
Could you please do a video on exhaust crank case ventilation systems you do such great video and information. I'd like to see pros an cons to exhaust evacuation systems on engines where instead of intake it uses exhaust manifold with check valves
2006 Subaru sti. Thinking about installing one
Excellent video and explanation . thank you sir .
This is why you don't run a cheap catch can with one of those silly bronze filter things. Proper catch cans use baffles, or centrifugal force, to force oil droplets to collect on surfaces inside the catch can without impeding the airflow that much. Also, that engine has a lot of blowby...
I did install OCC in my 4d56 but I did removed the filter element so that pressure will exit quickly, maybe? Yeah, it is doing its job it collects a little oil but I learned a lot about OCC on this video tnx.
@@acc1tester398 No. The brass stuff.th-cam.com/video/T-B4VRxAtbw/w-d-xo.html
Thank you for this awesome video because after watching I'm not going to fit a OCC in my engine.
A very logical explanation, OCC will increase the workload on the piston and crank components...
Hi, If my OCC get filled up all the way to the top and it never get empty, even freezes up on winter. can this cause damage to the engine. I am just trying to see if this is what cause my timing to jump on my Jeep Grand Cherokee. please I would appreciate your answer..
In any improvement you do there are always tradeoffs. Increase oil crank pressure is the negative of OCC, but it can be negated by keeping the screen clean and draining everytime you do an oil change. Toyota has managed very well with oil seperators that not just take out the oil but then have the extra pressure of putting it back into the pressured crank. Drag and circle track racers often use vacuum pumps on chevy v8's to reduce oil crank pressure, because they can gain a few more horsepower with negative pressure. The benefits to not putting the oil vapor gunk back into the engine through the intake are huge and are more than carbon buildup on the back of the valves (which is really bad in its self). Other benefits are increase octane, cleaner engine all through the intake, valve body, longer life of the catalytic converter, etc.
How about just venting pvc to atmosphere and plugging the hole to the intake. Would it damage the engine? I font care if its illegal just dont want to damage engine
Yeah but this works for boosted engines. I have a 2005 Pontiac GTO LSA suoer chargered and I have a catch can. The blow by oil goes into the catch can and I drain it once every 2 months .. or depending on how much I drive it. This OVC may not work for OEM applications but they are necessary for boosted engines
What a logical explanation.
Please do one explaining Water-Meth Injection in a Diesel engine.
I hear people claiming 20% more power and up to 5 MPG more wilst cleaning your engine.
Huli ko na to na panood. Masyado rin akong nag paniwala sa iba, na dala rin ako don sa oil na nacocollect kala ko i kakabuti sa makina, nung ni install ko last year occ ko walang talsik sa dipstick nung wala pa occ, ngayon meron na kahit, kahit binalik ko na sa dating hose may talsik na.
what in information.... DIY ASAP, back to stock. Thank you for that great information
I did not install my OCC that I bought in US..thanks for the info..
@@acc1tester398 Oil Catch Can
Does it work in 4ja1 diesel engine?
Good presentation.. like what he said it’s up to u to decide..
To see is to believe 👍🇨🇦
Have you checked PCV valve ? If it is clogged or not
There are no PCV valve on a Diesel. There is a CDR valve and it has a totally different operation. Or they have nothing at all.
Please make a video on oil leaking Turbo in the 4D56 engine, i will really appreciate it!!
Thank you so much!
Very good explanation
So I have just added an OCC to my mustang. I put around a 100 miles on it and I can tell that there is a residual of oil within the can and stinks like oil vapors, but no liquid forming at the bottom of the can yet.
I was simply checking to see if there was anything in it at the 100 miles after install. I didn't think there would be, but my reason in checking it also, was my car seems to be running poorly to a degree. I noticeable hitch when I get on it. I'm in the process changing out the pcv as it looks old and for a short time the pcv hose was not connected as we just put a supercharger on it, and we had to run the passenger side pcv hose to cc and the out from the air intake tube to the cc. From the drivers side valve cover, we ran a hose to the air intake tube just after the maf.
I'm just worried I'm not getting good crank case pressure relief with this install, or maybe this has nothing to do with it and I'm running really rich. I'm in the process of checking that out as well.
Any thoughts would be appreciated
Thanks
What is you findings
@@leishi1950it just so happened to be chilly the day I checked the reservoir. good results finally when it warmed up and put some miles on it.
It was breathing just fine through the pcv.
@@alfenner3309 that is great to hear which occ do you put in. I'm in the same place. Worries about the built up pressure in the crankcase and also worries about the hose cannot handle vacuum maybe clapsed
My catch can came with a tiny cone shaped air filter that can be placed on top. Im guessing this is intended for a vent to air system? So i could simply plug the pcv hole on the intake and just let it vent to air through the cone shaped filter 🤔
Filter inside OCC will increase the resistance and slowing down the breather airflow, i recommend you to instal 2 small OCC so it can match the airflow speed.
very well explained sir... In some what weird way, I actualy understood what you ment. than you sir.
Thank you for this information.
Hello brother
can you tell me why I see white smoke coming from oil cap in the morning and the engine is cold in first start and that white smoke same when the engine is hot