@Louis Edwards intrigued, with all your experience did you learn anything extra from this video, or is thete anything extra you can add to the subject . . . . I am interested in how to see/smell/feel the oil to make a quick diagnosis ?
@Louis Edwards Ah Ha, thanks for that. Yeah I understand PWM proportional solenoids, just the trans that blows by me. Does the lockup solenoid get its commands from a dedicate trans control module or the ECU ? Guess it maybe depends on which motor etc Anyhooo, cheers for that. Have a good one bud.
I watched a few other videos on TC and was generally confused, but this tied it all together for me. You're a true teacher because you put thought into choosing words, examples and demonstrations that are practical and appropriate for the audience. Well done, you should consider a career in teaching.
I have been a diy person all my life and worked on my own cars, I fully understood all about the engine function and how it all worked together but until now have never known how a torque converter worked and why it was needed, just took it for granted and never tried to understand it because i couldn't see inside the sealed unit and now it is exposed and the knoledge you have shared is priceless for people like myself. well done!!
This is by far the best instructional video of a torque converter I have ever seen. I am not a mechanic by any means, but his visual aids really lets you see how everything works. If Eric is an instructor in school, he must be putting out some "REALLY" good mechanics.
Really? I thought it was terrible. I gave up half way through as all he was doing was flipping oily bit of metal and confusing me about what way around they fitted. But I wanted to know how it worked so I searched for video. My first hit was the LearnEngineering one. Less than half the length and really easy to understand what all 4 components including the lock up clutch did. Immeasurably better.
Out of the three videos I've now seen this video comes second. This other video ua-cam.com/video/bRcDvCj_JPs/v-deo.html was the clearest to me by a medium-large factor.
College is just a way to get people into debt right when each of ya are “up to bat”... I’m not saying all colleges are scams, I’m just saying: money doesn’t buy people smarts. I know many people who are stuck paying tens &/or even hundreds of thousands of dollars in student loans over the course of their lives- just to have jobs in the field of employment that their student loans/ a.k.a “college smarts” didn’t get them knowledge in.... they wind up settling for jobs in completely different professions.. 🤔
Example: my Autobody teacher at a vocational school: his major was to build & service x-ray hospital machines... & after he graduated college he’s been an automotive collision repair teacher... 🤣🤔😆
No doubt, I've learned more and more of a quick study listening to other mechanics online. In a classroom I'd just fall asleep or get bored from additional info I really don't need or need to hear. It's like "get to the freakin point already!" lol
As a fellow engineer: I concur. Those mechanical profs (especially from offshore )were mostly useless teats with no practical knowledge to impart. Cud U wish that Eric was one of the tutors in their labs to delve into real man's world not the beta one we have inherited today.
That was well done. I started out in automotive engineering. When starting out, there is a big difference in the rpm between the impeller and turbine. The impeller is then acting like a centrifugal pump accelerating the fluid to the outside and at an angle against an opposing angle on the turbine blades which are not spinning, making them a bit like a bucket on water wheel to extract some of the kinetic energy after which it is routed to the stopped or lower velocity inner diameter of the turbine, and back toward the inner diameter of the impeller where it will be sucked in and accelerated again. However, with the large difference in velocity and the opposite angle, the remaining kinetic energy opposes the impeller so there can be no torque gain unless you redirect and reuse that energy with a stator to assist the impeller. The stator attempts to rotate backwards and it cannot because the sprag/roller/one-way clutch doesn't allow it to, and it redirects the fast-moving fluid into the direction of the impeller at to further accelerate the fluid, which is where you get torque multiplication, ~2:1. However, as the turbine rpm gains equilibrium with the impeller, the turbine now produces its own back pressure from centrifugal force, thereby mostly balancing this out. However, with the angle of the inner turbine blades plus the rotation of the turbine being almost as fast as the impeller, the stator will now rotate with the impeller and turbine to give the best flow. This point is called couple or lockup, although it is not really coupled or locked up, but it will be less than 10%, slower depending on the converter, and torque multiplication will be 1:1. Thus, max torque multiplication occurs when the impeller is turning and the turbine is stopped. If something is wrong with the stator and it rotates in both direction, acceleration will be poor. If it won't move in either direction, it will add a load on the engine during coupling and cause heat buildup. Then came lockup torque converters where they actually do lock the impeller and turbine together physically, so they tend to refer to the former as couple rather lockup. The difference between a torque converter and a fluid coupling is the stator, which enables the multiplication of torque. So are fluid couplings obsolete? No. They are used in a lot of applications to isolate vibration between driving and driven members, and even gentle startups when an engine is running at a fixed RPM like electric engines and fluid is slowly added such as to start a conveyor belt with tons of product on it. The stall speed is the maximum rpm that the engine can turn when using all of its power against a stopped turbine. Logically, that depends on how much torque the engine has. While true, with something relatively heavy such as transmission fluid, small changes in RPM make big changes in torque to make a small rpm change, so it won't vary by as much as you think, which is why they can categorize them by stall speed. You can also see that the smaller the diameter, the faster you will have to spin it to equal the same outside velocity to achieve the same centrifugal force and pumping action on the fluid plus they have less area on the blades so a 1" difference in diameter can make a substantial difference in stall rpm. The stall rpm will vary more with torque variations as well, but still not by a lot. Of course the First Law of Thermodynamics states that neither matter nor energy can be created or destroyed. When the engine creates all of that high velocity fluid against a stationary turbine, the energy has to be dissipated somewhere, and it is. The engine horsepower is converted to heat, which is why the transmission cooler in the radiator, unless you have a wimpy engine in which fins on the outside of the converter and air holes in the bellhousing can do the job. Larger diameter converters are more efficient even during coupling. However, when overdrive transmissions and higher gear ratios became more and more popular, engine rpm dropped near or below where coupling would occur even at speed, so there were efficiency losses with more power going up in heat in the converter. This made the move to lockup converters compelling. From automotive engineering to aviation mechanic to military pilot, the engines made perfect sense to me right away because they use a stator to similar effect as torque converter except jet engines don't allow the stators rotate with the rotors because it is always pumping, unlike a torque converter, thus unnecessary. Another difference is the stators are where the compression is occurring when it converts the kinetic energy into static pressure, and redirects the flow direction into the rotor blades of the next stage. Torque converters don't compress the fluid but rather add to the kinetic energy to be expended against the turbine by feeding accelerated fluid back into the impeller to be further accelerated.
Excellent add-on to this video!! Funny coincidence . My background is aerodynamics-F-16 crew chief to military pilot.. Now Im trying to troubleshoot why my E4OD chatters in neutral or park after it warms up. I think it might be the pump
What this long comment (thank you) is saying is that Eric's brief comments about how the stator works is not quite right. But the video is still excellent overall.
Brilliant explanation! As an engineering student, I was not quite satisfied with Eric's explanation, but yours gave everything that I still wanted to know. It is quite obvious that you were in automotive engineering, nobody else could give such a detailed and thorough explanation. Thank you for sharing!
Yes,Eric's video was good but I have to say your summaration of the auto.was equally as good.Thank you for showing how my car can take off from the lights better than a manual gearbox car!
I knew his explanation was wrong as soon as he forgot to list the most important function of a torque converter or fluid coupling, that is, to allow the engine to keep turning when the car or load is stopped.
"i hope this video can help you in some small ways" dude. BIG. IT HELPED ME BIG. I NEVER understand how TC works but the fan demo you showed was really genius and that contributes to 100% of my understanding. Thank you ! you're the best !
This is amazing, your attention to detail and terminology, the clear and thorough explanations, that practical demonstration. You're an amazing educator!
I'm a geezer and throughout my entire life (thus far) I've never had a clue how torque converters work. Outstanding video, I loved the two fans demo, excellent. Thanks a ton, now I can pass my thanks through a torque converter and virtually double my thanks.. so thanks two tonnes.
I've watched you for almost 10 years and this is one of my favorite videos I have ever seen, in forms of technical knowledge and visual aid. I understood how TC's worked but could never explain it to another person myself. Always saw it as a compontent that just needed replaced as a whole and never got into the guts of it. Eric you're a legend
There are guys that fabricate ONE OFF RACE converters to match not only the engine dyno results, but also final drive ratios 1-gear through top gear and weight of the car. I am GRATEFUL and humbled that these peoplevexist, because, "Who doesn't love cars?!" Man does not live on bread alone. Motorsports are also vital.
Best explanation I've seen so far of how a torque converter works. Really appreciate how you took a complicated subject and broke it down so that a layman could understand it. Your a good teacher.
Eric, this is a very lucid explanation of an automatic transmission. And showing all of the major parts makes for a great explanation. Thank you very much.
My 1993 Oldsmobile started stalling at stoplights all of sudden. Thought I had a big problem. Finally got the car home after pissing off a whole lot of drivers behind me. Turned out to be the converter lockout solenoid. Part was $20, solenoid was under the transmission cover on the driver's side. Was a fairly simple repair and car was back to normal. A very small part that caused a big headache on the road. Excellent video by the way.
People are idiots.. My transmission broke once and the car couldn't move so I put on my 4 ways and went to get help. I'm inside of the building watching people pull right up to an empty car with the 4 ways going and honking their horn.. Unreal.
I have a 95 Chevrolet Cheyenne with an auto tranny and is the only one I've been driving manual trans pretty much all my my life at one point I had a 94 dodge caravan with a factory 5 speed Haha no joke dodge built a few very rare anyway automatics are no fun
@@newvilla8115 take a look at the input shaft of the transmission, the shaft is hollow with fluid holes. That allows the front fluid pump to move fluid through the torque converter.
Simply incredible work Eric , I've been watching your channel for years. I also have taken an automotive electrical diagnostic class at a community college. Your work has been a great stepping stone in my automotive understanding In the past 5 years
This was the most educational video on torque converters that I have ever seen. In fact, all your videos are so clear and concise. Thank you and keep being awesome.
This video gives a fairly easy to understand explanation of how the impeller, the turbine, and the stator all work together in a torque converter transmission. Good job!
Brilliant explanation with the two fans! This is exactly how a turbine shaft engine works on helicopters. The Compressor section and turbine section are only connected by hot air. The expanding gases force the power turbine section to turn and power is transferred to the main transmission.
The world of turbines. They need a FLUID (Air and liquid are both defined as FLUIDS, one is less denser than the other) in order to TRANSFER the mechanical force needed to extract its energy into function. In a fan jet (not a turbo shaft) engine the rapid expansion of the combustion gases are “routed” into the turbine section, that turbine turns (torque) just as the fans do in the video. That turbine, as it rotates, causes a shaft to turn, and that turning energy then is transferred (thru a driveshaft) to the main fan up front of the engine (compressor) that would then move air to the rear, compressing it in the process. How that energy is EXTRACTED for utilization in the engine makes the difference in what TYPE of turbine engine it is. There’s another video, a lot shorter, that uses video animation to explain how torque converter works. It took me a few replays of the video to get MOST of the hang of it. But this video (longer) explains it a lot better, specially with the use of air fans. Well made!!!
Eric thank you so much, you are a top notch Car Professor for all us to learn. You make it easy to understand even the most difficult things. Thank you teacher...
Having been a motorcycle mechanic the last 20 years I have had very little knowledge in auto specific things. This is a great explanation of how this works and the potentials of issues. Thanks for the video.
No BS. Clear, concise, articulate, no jokes or talking to the dog. Well presented with fan analogy. Thanks for your effort and thoughtful presentation. Thanks for not wasting my time. You Tube channelers need to learn these techniques. I am subscribing.
I think Eric fully understands how a torque converter works, and made a good effort to communicate that, to the viewer. And his 2-fan analogy was good. However I think there are a goodly number of ways in which his language could be improved. A good number of places where where his language is ambiguous. He tries to make things understandable by repeating himself, using a slightly different sentence structure, but the repeated sentence, or phrase, is not any clearer than the original.
I appreciate your presentation. This is a subject that I had never looked into before, so it was all brand new to me. Before now, the torque converter was that big thing under the bell housing, between the engine and the transmission. You gave very eye opening information on precisely what is going on inside the metal shell. Thank you.
I love the video I've never seen inside of a torque converter and understand fully how they worked you did that just like textbook classroom perfect thank you
Dang man. That was a fantastic explanation of converters. Great job. Thank you. I bet it feels nice to still hear people getting help from your knowledge 8 years after you dropped it 🤘🏼🤘🏼
Got a P0741 torque converter code on my 2010 Scion Xb with 208k miles on it. Symptoms the car gave was revving high when driving or at idle. And couldn't go over 35 mpg. When draining the trans fluid, it was blacker than black. Also changed out the trans filter and gasket and cleaned trans pan and magnets. And added a bottle of Lucus trans fix. Doing this much needed maintenance (previous owner failed this important maintenance) greatly improved the transmission performance. And engine code for the torque converter has not returned in the 5 days of driving my kids to and from school. So tyvm Eric for making this video and doing an awesome job of explaining the toque converter 👍👍
A super great video. 10 days ago, I had to add transmission shudder fix because at shifting lower gears, I had hesitation till I built up to top speed and gear. Now I better understand why the shudder fix worked for me. Thanks for the great video.
I was raised in a wrecking yard, changed many transmission, rebuilt a few. But never understood the torque converter,. This helps. Who figured this out, was a genius without a doubt. Thank you so much. I never even seen inside one. Till now, clearer but still a bit confusing. Thanks!!
Engineering at its finest.. Fascinating how someone could think of such complex components.. Eric, you did an excellent job explaining the converter.. Great job
I have been an armchair mechanic for a very long time yet none of my mechanic friends have ever been able to adequately answer my questions about that big donut. After watching your video, I now see why they were unable to convey the concept to this mere plumber. As it turns out.. I now (thanks to you) probably understand better than they what is going on inside. They knew when a torque corverter was bad and needed replacing.. which was almost never.. but they couldn't tell me why.. Thank you SO much for creating this informative as well as well illustraded instructional video.
Hi I had Toyota rav4 in excellent condition, but I had one problem, when I get to stop sign or light the engine would died. I took it to Toyota dealer and other shops they couldn't find the problem, but They replaced computer, sensors, magneto, and some other parts. Finely I give up and I trade in . Now after watching your video I found out the problem was related to torug converter. Thank again and God bless you and your family!
FIrst, I loved the " practical" with the fans -- it really demonstrates the concept. Second, some automatics designed for hauling heavier loads will use the lockup clutch in more than only the highest gear in order to limit heating of the transmission fluid.
Thanks for the demo. I had a rough idea how this device worked, now I have a more complete understanding. Also it is interesting to see other technologies combined to make this work. The starter motor clutch on Honda motorbikes comes to mind. Great video.
I spent many years as a transmission specialist. Our shop bought a lathe, and I was schooled on disassembly and rebuilding converters. It was the missing link for me on exactly what and how it was all coupled together.. Great vid and very good job explaining its function. You can see the pics and read the text but until you've seen inside it just doesn't make sense.
Eric: I made a living as a nuclear physicist, and had mostly mechanical profs that were useless explaining anything but small subsets of their profession (especially the ones coming form offshore universities (useless teats). Too bad guys like U weren't tutors at Engineering schools who have/had real practical knowledge and maybe from a societal viewpoint we wud have some of our youth migrating to the real world instead of playing video games. Thanx, Buddy as I say to my logger friends who help me down dead trees for firewood. Real men are sooo rare in US n canada.
I would have been an engineer if this video was uploaded 12 years ago. Very informative video. Liked it. Please keep uploading the great videos like this one.
This has to be the best video on a torque converter! The fans and the actual internals of the TC helped really visualize the workings! Thank you! PS: The video is 11 years old! Awesome!
This is, by far, the best explanation I've ever heard for how a torque converter works. The only thing I cannot wrap my head around is how the stator increases the torque but I imagine that's a fluid dynamics thing. The only thing that isn't 100% is the lock up, there are a lot of vehicles (trucks) that will lock up in much lower gears.. I think my duramax will lock in as low as 3rd, maybe even 2nd but that's mostly due to it being designed for towing.
I like the fan demo but the fluid passing through the stator is coming FROM the turbine and going BACK TO the impeller, not the other way around as you depict. The flow in the impeller goes in an in-to-out direction (it's getting spun out by centrifugal force) and enters the turbine at the outer edge. It flows from the outside to the inside in the turbine - it's called a 'radial inflow turbine' implying that the fluid travels radially inward - and exits closer to the centreline. Then it goes through the stator and back into the impeller where it gets spun out again.
Christopher Norris Oh ..... that's how the stator doubles the torque. It's for want of a better term 'turbocharging' the impeller. Boosting it. I think that's the missing link for me. Now I get it.
+Christopher Norris the impeller is driven by the engine. The impeller starts the process by push the oil across the stator to the turbine and starts the turbine spinning and then centrifugal force send it back through the stator and back and forth until the turbine gains speed until centrifugal force is enough that the stator will free wheel and not mess with the flow of oil back and forth. this is how I have always understood it.
i agree with @andypeak8151 i have been around a long time built many parts of cars and racing, and that was the best explanation of Torque Converter & I was even being taught years ago & learning transmission on a top team to be a trans guy, on a 5000hp Top Fuel Dragster. I never had anyone explain in such a way, simplistic and with fans, great video. amazing what goes into a torque converter. last few statements were a plus.i will be looking over all your videos now. love learning and miss my car days from off road racing to IMSA to NHRA You gave me a rush to go get a race car and build understand and race again ;') Thanks for rejuvinating a man that just turned 60. Maybe a GT3RS to learn and run now ;') LOL Thanks again ;')
Fantastic video! I work at an auto salvage yard. I see those things all the time. All I knew about them is that 1. They are heavy 2. You think you got all the oil out.... BUT NOOOOOOO!! You didn't get all the oil out. 3. I'm tired of cleaning all the oil they spill. 4. I have always wandered how they worked and what was inside.
so I want to say that as a fellow mechanic and frequent you tube visitor i am highly impressed with your teaching skills and knowledge transfer processes and techniques. This is one of the coolest and more fun mechanical component explanations I have ever seen. I subbed and liked just now and I look forward to more from exploring your channel. Well done sir, this is truly well done and a gem of a mechanics video.
You could also explain that the the moment you touch the brakes, the clutch releases by cutting oil pressure to the clutch. You can actually see it happen. Next time you are driving up a hill and the clutch is locked, touch the brakes without releasing the gas pedal. You can see the RPMs rev up a little.
Based on your comment, I'd like to pick your thoughts on a transmission issue that I picked up on my car not too long ago... I don't know who could give me a perspective on my small dilemma. So if you allow me, I'd share with you...
@ 7:25. I thought the flow was the other way around from the stator...The flow from the impeller to the turbine is from the outer radius of the impeller to the outer radius of the turbine...and then the fluid flows from the inner radius of the turbine, through the stator back into the impeller.
This is the best explanation of how a torque converter works that I've seen. I'm still mystified by the workings of a transmission, but this really helped.
Dude, awesome explanation. Huge thanks for the huge effort!! ...man, it is so crazy what engineers came up with, isn't it... X_X Greetings from Germany!
for not having a program or CGI to help u show what ur talking about. u did a great job explaining how a torque converter works. showed me something i didnt know. but wanted to know. thank u for ur time in making this video.
Knowing the material is one thing - the ability to entertain and teach is another gear. It''s automatic for ETCG. His fluid, impelling arguments were clutch. Good job!
You had me thinking pretty good explanation until you started to explain how the stator multiplied torque. Your explanation missed the mark. 1) the stator redirects fluid coming from the turbine as it reenters the impeller. Not the other way around as you stated. 2) The stator is not just for breakaway in fact the torque converter varies the torque that it multiplies over a large range of driving conditions during which time the stator is locked. 3) The stator doesn't start to free spin until the turbine is rotating at approximately 90% of the impleller rotational speed. 4) Your first statement about the stator OWC stating that it was a roller clutch but then you called it a sprag. Roller and Sprag One Way Clutches (OWC) perform the same task but accomplish it differently. One uses rollers and the other uses sprags. Stators always use roller OWC's. 5) Modern day vehicles can and do often start to pulse the TCC on as early as in 2nd gear. This would not be 100% engagement but partial engagement. Even my 94 Acura with a 4sp will 100% lock up the converter in 3rd gear. So the transmission does not have to be in high gear before the TCC will apply. Unfortunately I would not be able to recommend this video to my students for educational purpose with your stator & TCC explanation as is. If you want to be accurate I suggest you edit this video and re-post.
So that is one of the reasons you feel a "boost" off the line when you press both gas and brake at the same time in an automatic vehicle, and then let off the brake... Your engine is at the stall speed, so the stator is multiplying torque, but the brakes are holding the vehicle steady. Release brake and feel the full power of that torque, but once moving the stator is no longer multiplying torque and you realize that your 97 camry actually does not have as much power as you wished it had XD (Right?)
The stator explanation completely lost me. After some further research, I found that the explanation was inaccurate. The stator alters direction of the centre return flow from the turbine, not the outward flow from the impeller. Because of the way the turbine blades are made up, the return flow from the turbine is opposite from the direction of the impeller rotation and that would oppose impeller rotation. The stator comes in and redirects the fluid flow to match the direction of the impeller blades. The torque multiplication occurs when the force of the fluid hits the impeller blades in such a way that it assists with engine rotation. The stator starts rotating when the impeller and turbine start approaching the same speed. Hope this helps anyone else who also got lost.
rofl , rofl , and rofl ... dark matter and the meaning of life we got but women , yeesh , only God fully understands them yet His 1st recorded words to a woman was "woman, what have you done? " :P
Yea, Eric I like to know about the complexity in women mechanism as well :). I felt like you could explain them as well when I hear you explaining things the way you explain things. All I know about women is, they are the most difficult or impossible to understand in the entire universe. And yet I still love her with all my heart even without understanding her. Speak to me God?
I'm 60 years old and I finally understand how a torque converter works.
THANK YOU
I'm 70 years old and I finally under...I forgot.
Uhh, Honey, can I have a Turkey Burger?
@Louis Edwards intrigued, with all your experience did you learn anything extra from this video, or is thete anything extra you can add to the subject . . . . I am interested in how to see/smell/feel the oil to make a quick diagnosis ?
@Louis Edwards Ah Ha, thanks for that. Yeah I understand PWM proportional solenoids, just the trans that blows by me. Does the lockup solenoid get its commands from a dedicate trans control module or the ECU ? Guess it maybe depends on which motor etc
Anyhooo, cheers for that. Have a good one bud.
You should see his video on understanding women.
8 More years, and you will hit the nice number, Grandpa
I watched a few other videos on TC and was generally confused, but this tied it all together for me. You're a true teacher because you put thought into choosing words, examples and demonstrations that are practical and appropriate for the audience. Well done, you should consider a career in teaching.
well torque conversion means it converts torque dumb sht
This is 9 years old and is better quality than some modern videos I watch. Well done.
Exactly what I was thinking!
I'm a 50 year transmission master rebuilder, well done, I know how it works but I enjoyed watching you video, I give you a 100%.
I have been a diy person all my life and worked on my own cars, I fully understood all about the engine function and how it all worked together but until now have never known how a torque converter worked and why it was needed, just took it for granted and never tried to understand it because i couldn't see inside the sealed unit and now it is exposed and the knoledge you have shared is priceless for people like myself. well done!!
This is by far the best instructional video of a torque converter I have ever seen. I am not a mechanic by any means, but his visual aids really lets you see how everything works. If Eric is an instructor in school, he must be putting out some "REALLY" good mechanics.
Really? I thought it was terrible. I gave up half way through as all he was doing was flipping oily bit of metal and confusing me about what way around they fitted. But I wanted to know how it worked so I searched for video. My first hit was the LearnEngineering one. Less than half the length and really easy to understand what all 4 components including the lock up clutch did. Immeasurably better.
Out of the three videos I've now seen this video comes second. This other video ua-cam.com/video/bRcDvCj_JPs/v-deo.html was the clearest to me by a medium-large factor.
I've taken a college course on auto trans... this was much more informative in 20 mins than the 3 months it took my teacher to do nearly the same.
college is a scam
It's just a way to get you to take a student loan
College is just a way to get people into debt right when each of ya are “up to bat”... I’m not saying all colleges are scams, I’m just saying: money doesn’t buy people smarts. I know many people who are stuck paying tens &/or even hundreds of thousands of dollars in student loans over the course of their lives- just to have jobs in the field of employment that their student loans/ a.k.a “college smarts” didn’t get them knowledge in.... they wind up settling for jobs in completely different professions.. 🤔
Example: my Autobody teacher at a vocational school: his major was to build & service x-ray hospital machines... & after he graduated college he’s been an automotive collision repair teacher... 🤣🤔😆
Some Tech schools like Lincoln Tech are good and worth the money.
No doubt, I've learned more and more of a quick study listening to other mechanics online. In a classroom I'd just fall asleep or get bored from additional info I really don't need or need to hear. It's like "get to the freakin point already!" lol
You are so knowledgeable. You are a gifted teacher. As an engineer myself, I find your videos super informative. Keep up the great work.
As a fellow engineer: I concur. Those mechanical profs (especially from offshore )were mostly useless teats with no practical knowledge to impart. Cud U wish that Eric was one of the tutors in their labs to delve into real man's world not the beta one we have inherited today.
That was well done. I started out in automotive engineering. When starting out, there is a big difference in the rpm between the impeller and turbine. The impeller is then acting like a centrifugal pump accelerating the fluid to the outside and at an angle against an opposing angle on the turbine blades which are not spinning, making them a bit like a bucket on water wheel to extract some of the kinetic energy after which it is routed to the stopped or lower velocity inner diameter of the turbine, and back toward the inner diameter of the impeller where it will be sucked in and accelerated again. However, with the large difference in velocity and the opposite angle, the remaining kinetic energy opposes the impeller so there can be no torque gain unless you redirect and reuse that energy with a stator to assist the impeller. The stator attempts to rotate backwards and it cannot because the sprag/roller/one-way clutch doesn't allow it to, and it redirects the fast-moving fluid into the direction of the impeller at to further accelerate the fluid, which is where you get torque multiplication, ~2:1. However, as the turbine rpm gains equilibrium with the impeller, the turbine now produces its own back pressure from centrifugal force, thereby mostly balancing this out. However, with the angle of the inner turbine blades plus the rotation of the turbine being almost as fast as the impeller, the stator will now rotate with the impeller and turbine to give the best flow. This point is called couple or lockup, although it is not really coupled or locked up, but it will be less than 10%, slower depending on the converter, and torque multiplication will be 1:1. Thus, max torque multiplication occurs when the impeller is turning and the turbine is stopped. If something is wrong with the stator and it rotates in both direction, acceleration will be poor. If it won't move in either direction, it will add a load on the engine during coupling and cause heat buildup. Then came lockup torque converters where they actually do lock the impeller and turbine together physically, so they tend to refer to the former as couple rather lockup. The difference between a torque converter and a fluid coupling is the stator, which enables the multiplication of torque. So are fluid couplings obsolete? No. They are used in a lot of applications to isolate vibration between driving and driven members, and even gentle startups when an engine is running at a fixed RPM like electric engines and fluid is slowly added such as to start a conveyor belt with tons of product on it.
The stall speed is the maximum rpm that the engine can turn when using all of its power against a stopped turbine. Logically, that depends on how much torque the engine has. While true, with something relatively heavy such as transmission fluid, small changes in RPM make big changes in torque to make a small rpm change, so it won't vary by as much as you think, which is why they can categorize them by stall speed. You can also see that the smaller the diameter, the faster you will have to spin it to equal the same outside velocity to achieve the same centrifugal force and pumping action on the fluid plus they have less area on the blades so a 1" difference in diameter can make a substantial difference in stall rpm. The stall rpm will vary more with torque variations as well, but still not by a lot. Of course the First Law of Thermodynamics states that neither matter nor energy can be created or destroyed. When the engine creates all of that high velocity fluid against a stationary turbine, the energy has to be dissipated somewhere, and it is. The engine horsepower is converted to heat, which is why the transmission cooler in the radiator, unless you have a wimpy engine in which fins on the outside of the converter and air holes in the bellhousing can do the job. Larger diameter converters are more efficient even during coupling. However, when overdrive transmissions and higher gear ratios became more and more popular, engine rpm dropped near or below where coupling would occur even at speed, so there were efficiency losses with more power going up in heat in the converter. This made the move to lockup converters compelling.
From automotive engineering to aviation mechanic to military pilot, the engines made perfect sense to me right away because they use a stator to similar effect as torque converter except jet engines don't allow the stators rotate with the rotors because it is always pumping, unlike a torque converter, thus unnecessary. Another difference is the stators are where the compression is occurring when it converts the kinetic energy into static pressure, and redirects the flow direction into the rotor blades of the next stage. Torque converters don't compress the fluid but rather add to the kinetic energy to be expended against the turbine by feeding accelerated fluid back into the impeller to be further accelerated.
Excellent add-on to this video!! Funny coincidence .
My background is aerodynamics-F-16 crew chief to military pilot.. Now Im trying to troubleshoot why my E4OD chatters in neutral or park after it warms up. I think it might be the pump
What this long comment (thank you) is saying is that Eric's brief comments about how the stator works is not quite right. But the video is still excellent overall.
Brilliant explanation! As an engineering student, I was not quite satisfied with Eric's explanation, but yours gave everything that I still wanted to know. It is quite obvious that you were in automotive engineering, nobody else could give such a detailed and thorough explanation. Thank you for sharing!
Yes,Eric's video was good but I have to say your summaration of the auto.was equally as good.Thank you for showing how my car can take off from the lights better than a manual gearbox car!
I knew his explanation was wrong as soon as he forgot to list the most important function of a torque converter or fluid coupling, that is, to allow the engine to keep turning when the car or load is stopped.
That fan demo was genius! Very good job explaining this!
Did no one else go "white fans, oily gloves... uh oh"?
3hoursago 7
3hoursago: *tries to make a funny comment*
ArctikF0X: *is triggered*
Great love it .
I know right thats what make me think whats my car issue is.. But very well explained erick u are the freaking boss. 👍👉👉
Almost 8 years later this is still the best video on how these Donuts work. Thanks!
I am not a mechanic, i just like to know how things work. I watched this to the end and feel like i have actually learned something. Well done!
"i hope this video can help you in some small ways"
dude. BIG. IT HELPED ME BIG. I NEVER understand how TC works but the fan demo you showed was really genius and that contributes to 100% of my understanding. Thank you ! you're the best !
This is amazing, your attention to detail and terminology, the clear and thorough explanations, that practical demonstration. You're an amazing educator!
I'm a geezer and throughout my entire life (thus far) I've never had a clue how torque converters work. Outstanding video, I loved the two fans demo, excellent. Thanks a ton, now I can pass my thanks through a torque converter and virtually double my thanks.. so thanks two tonnes.
Yes I took apart of four-wheel drive transmission and put it in a 2-wheel drive and now all I get is the one gear what did I do wrong???
I've watched you for almost 10 years and this is one of my favorite videos I have ever seen, in forms of technical knowledge and visual aid. I understood how TC's worked but could never explain it to another person myself. Always saw it as a compontent that just needed replaced as a whole and never got into the guts of it. Eric you're a legend
Very very helpful thank you sir
There are guys that fabricate ONE OFF RACE converters to match not only the engine dyno results, but also final drive ratios 1-gear through top gear and weight of the car. I am GRATEFUL and humbled that these peoplevexist, because, "Who doesn't love cars?!"
Man does not live on bread alone. Motorsports are also vital.
I used to have no idea how a torque converter worked, but after this video, I'm confused about fans too.
ahhaha
Mier Beuker 😂😂😂😂😂🤣🤣🤣🤣🤣
To air is human?
lmao!
Fans don't work, they pay someone else to do it for them!
Best explanation I've seen so far of how a torque converter works. Really appreciate how you took a complicated subject and broke it down so that a layman could understand it. Your a good teacher.
Your practical gave me the "AHA!".
10/10.
اوکی
I appreciate your ability to explain and in detail so that even the least knowledgeable person can understand.
Eric, this is a very lucid explanation of an automatic transmission. And showing all of the major parts makes for a great explanation. Thank you very much.
This is probably the best write up I've ever seen on TC operation. Awesome job Eric. The fans are a really nice visual aid.
My 1993 Oldsmobile started stalling at stoplights all of sudden. Thought I had a big problem. Finally got the car home after pissing off a whole lot of drivers behind me. Turned out to be the converter lockout solenoid. Part was $20, solenoid was under the transmission cover on the driver's side. Was a fairly simple repair and car was back to normal. A very small part that caused a big headache on the road. Excellent video by the way.
People are idiots.. My transmission broke once and the car couldn't move so I put on my 4 ways and went to get help. I'm inside of the building watching people pull right up to an empty car with the 4 ways going and honking their horn.. Unreal.
How does the oil get into the converter?
I have a 95 Chevrolet Cheyenne with an auto tranny and is the only one I've been driving manual trans pretty much all my my life at one point I had a 94 dodge caravan with a factory 5 speed Haha no joke dodge built a few very rare anyway automatics are no fun
@@newvilla8115 take a look at the input shaft of the transmission, the shaft is hollow with fluid holes. That allows the front fluid pump to move fluid through the torque converter.
Simply incredible work Eric , I've been watching your channel for years. I also have taken an automotive electrical diagnostic class at a community college. Your work has been a great stepping stone in my automotive understanding In the past 5 years
Eric - you are great at presenting things in an easy understandable way.
I've seen tons of TC explanation videos but this one trumps them all, easily. Well done.
The Physics is so well done, I had a idea about this as a kid , but this is so straightforward 😊 Well done Eric 😂
And I'm 75 years old, and think this is one of the best mechanical and physics presentations I've ever seen. Thank you!
This was the most educational video on torque converters that I have ever seen. In fact, all your videos are so clear and concise. Thank you and keep being awesome.
Eric, you are a born teach Sir. For the first time in my life, I now fully understand how this unit work. Thank you so much.
This video gives a fairly easy to understand explanation of how the impeller, the turbine, and the stator all work together in a torque converter transmission. Good job!
William H. Burke, Jr. 0
lifetime gearhead, past mechanic and auto enthusiast here. This is probably the best explanation of torque converters I have ever seen. Nice job!
Brilliant explanation with the two fans!
This is exactly how a turbine shaft engine works on helicopters. The Compressor section and turbine section are only connected by hot air. The expanding gases force the power turbine section to turn and power is transferred to the main transmission.
The world of turbines. They need a FLUID (Air and liquid are both defined as FLUIDS, one is less denser than the other) in order to TRANSFER the mechanical force needed to extract its energy into function. In a fan jet (not a turbo shaft) engine the rapid expansion of the combustion gases are “routed” into the turbine section, that turbine turns (torque) just as the fans do in the video. That turbine, as it rotates, causes a shaft to turn, and that turning energy then is transferred (thru a driveshaft) to the main fan up front of the engine (compressor) that would then move air to the rear, compressing it in the process. How that energy is EXTRACTED for utilization in the engine makes the difference in what TYPE of turbine engine it is. There’s another video, a lot shorter, that uses video animation to explain how torque converter works. It took me a few replays of the video to get MOST of the hang of it. But this video (longer) explains it a lot better, specially with the use of air fans. Well made!!!
Awesome video! I've never really understood torque converters until I watched this video! Thank you!
This was probably the most seamless explanation of an engineering concept I've encountered on youtube! Great job!
Eric thank you so much, you are a top notch Car Professor for all us to learn. You make it easy to understand even the most difficult things. Thank you teacher...
Having been a motorcycle mechanic the last 20 years I have had very little knowledge in auto specific things. This is a great explanation of how this works and the potentials of issues. Thanks for the video.
No BS. Clear, concise, articulate, no jokes or talking to the dog. Well presented with fan analogy. Thanks for your effort and thoughtful presentation. Thanks for not wasting my time. You Tube channelers need to learn these techniques. I am subscribing.
I think Eric fully understands how a torque converter works, and made a good effort to communicate that, to the viewer. And his 2-fan analogy was good. However I think there are a goodly number of ways in which his language could be improved. A good number of places where where his language is ambiguous. He tries to make things understandable by repeating himself, using a slightly different sentence structure, but the repeated sentence, or phrase, is not any clearer than the original.
Talking to the dog/cat. You hit it dead center.
Thank you for giving clear information with no background noise and good lighting.
This explanation of stators was much better than any I've seen in engineering school.
I appreciate your presentation. This is a subject that I had never looked into before, so it was all brand new to me. Before now, the torque converter was that big thing under the bell housing, between the engine and the transmission. You gave very eye opening information on precisely what is going on inside the metal shell. Thank you.
I love the video I've never seen inside of a torque converter and understand fully how they worked you did that just like textbook classroom perfect thank you
Dang man. That was a fantastic explanation of converters. Great job. Thank you. I bet it feels nice to still hear people getting help from your knowledge 8 years after you dropped it 🤘🏼🤘🏼
Got a P0741 torque converter code on my 2010 Scion Xb with 208k miles on it. Symptoms the car gave was revving high when driving or at idle. And couldn't go over 35 mpg. When draining the trans fluid, it was blacker than black. Also changed out the trans filter and gasket and cleaned trans pan and magnets. And added a bottle of Lucus trans fix. Doing this much needed maintenance (previous owner failed this important maintenance) greatly improved the transmission performance. And engine code for the torque converter has not returned in the 5 days of driving my kids to and from school. So tyvm Eric for making this video and doing an awesome job of explaining the toque converter 👍👍
Bloody brilliant. Everything I wanted to know. And I was asking myself about stall speed when you explained it. Cheers.
Great demo with the fans.
+Jeff Keith I agree !
Jeff Keith lemon
Thank you for walking me through that properly. I kinda knew but you made it make complete sense. You're a good teacher man
A super great video. 10 days ago, I had to add transmission shudder fix because at shifting lower gears, I had hesitation till I built up to top speed and gear. Now I better understand why the shudder fix worked for me. Thanks for the great video.
Your shudder was due to lock up clutch. If you keep the car it'll eventually need a converter.
I was raised in a wrecking yard, changed many transmission, rebuilt a few. But never understood the torque converter,. This helps. Who figured this out, was a genius without a doubt. Thank you so much. I never even seen inside one. Till now, clearer but still a bit confusing. Thanks!!
Plenty of modern transmissions lock up the TCC in most gears, only unlocking to shift gears. It helps fuel efficiency and power delivery a lot.
I feel like my 1999 ES300 will only lock when in either 3rd or 4th. I could be wrong though
Great explanation, there are a number of transmissions that will lock up in lower gears though not just high gear.
Engineering at its finest.. Fascinating how someone could think of such complex components..
Eric, you did an excellent job explaining the converter.. Great job
jon doe not one but many people working together
I have been an armchair mechanic for a very long time yet none of my mechanic friends have ever been able to adequately answer my questions about that big donut. After watching your video, I now see why they were unable to convey the concept to this mere plumber. As it turns out.. I now (thanks to you) probably understand better than they what is going on inside. They knew when a torque corverter was bad and needed replacing.. which was almost never.. but they couldn't tell me why.. Thank you SO much for creating this informative as well as well illustraded instructional video.
Well explain. I knew this but needed a recap. U nailed it. Thank u bro
You didn't know how it worked then you dork...ugh
Finally someone that speaks on my ability to relate and understand. Thanks. This was solid
I have a 2004 Volvo S60R whose torque converter just failed. Thanks for demystifying this for me!
Hi
I had Toyota rav4 in excellent condition, but I had one problem, when I get to stop sign or light the engine would died. I took it to Toyota dealer and other shops they couldn't find the problem, but They replaced computer, sensors, magneto, and some other parts. Finely I give up and I trade in . Now after watching your video I found out the problem was related to torug converter. Thank again and God bless you and your family!
True engineering. No computers. All brains and thinking and manual calculations.
FIrst, I loved the " practical" with the fans -- it really demonstrates the concept. Second, some automatics designed for hauling heavier loads will use the lockup clutch in more than only the highest gear in order to limit heating of the transmission fluid.
Thanks for the demo. I had a rough idea how this device worked, now I have a more complete understanding. Also it is interesting to see other technologies combined to make this work. The starter motor clutch on Honda motorbikes comes to mind. Great video.
I spent many years as a transmission specialist. Our shop bought a lathe, and I was schooled on disassembly and rebuilding converters. It was the missing link for me on exactly what and how it was all coupled together.. Great vid and very good job explaining its function. You can see the pics and read the text but until you've seen inside it just doesn't make sense.
Eric: I made a living as a nuclear physicist, and had mostly mechanical profs that were useless explaining anything but small subsets of their profession (especially the ones coming form offshore universities (useless teats). Too bad guys like U weren't tutors at Engineering schools who have/had real practical knowledge and maybe from a societal viewpoint we wud have some of our youth migrating to the real world instead of playing video games. Thanx, Buddy as I say to my logger friends who help me down dead trees for firewood. Real men are sooo rare in US n canada.
Eric, you're way of explaining things is amazing. You're a genius!!!
I would have been an engineer if this video was uploaded 12 years ago. Very informative video. Liked it. Please keep uploading the great videos like this one.
no you would not. People just like you became engineer without watching some random youtube video.
@@xl000 liked your frustrations and your comment.
This has to be the best video on a torque converter!
The fans and the actual internals of the TC helped really visualize the workings! Thank you!
PS: The video is 11 years old! Awesome!
Very simple and clear explanation. Thanks!
What a time we live in, that we can just look this stuff up for free at any time, anywhere
Fantastic presentation, I've learned a lot, that I, was totally unaware. Thank you so much for explaining. You did a great job
This is, by far, the best explanation I've ever heard for how a torque converter works. The only thing I cannot wrap my head around is how the stator increases the torque but I imagine that's a fluid dynamics thing.
The only thing that isn't 100% is the lock up, there are a lot of vehicles (trucks) that will lock up in much lower gears.. I think my duramax will lock in as low as 3rd, maybe even 2nd but that's mostly due to it being designed for towing.
who came up with all of this to begin with?? holy cow this is amazing
Great practical demonstration!
I like the fan demo but the fluid passing through the stator is coming FROM the turbine and going BACK TO the impeller, not the other way around as you depict. The flow in the impeller goes in an in-to-out direction (it's getting spun out by centrifugal force) and enters the turbine at the outer edge. It flows from the outside to the inside in the turbine - it's called a 'radial inflow turbine' implying that the fluid travels radially inward - and exits closer to the centreline. Then it goes through the stator and back into the impeller where it gets spun out again.
Thanks for that clarification Christopher - I can make sense of it now.
Christopher Norris Oh ..... that's how the stator doubles the torque. It's for want of a better term 'turbocharging' the impeller. Boosting it. I think that's the missing link for me. Now I get it.
+Christopher Norris the impeller is driven by the engine. The impeller starts the process by push the oil across the stator to the turbine and starts the turbine spinning and then centrifugal force send it back through the stator and back and forth until the turbine gains speed until centrifugal force is enough that the stator will free wheel and not mess with the flow of oil back and forth. this is how I have always understood it.
Wrong, wrong, wrong! It happens exactly as Christopher Norris says.
Thank you for explaining it. You know you're a great teacher if you can explain something complex and advanced in a simple and easy to understand way.
Eric you always teach me something of great value on every video! Keep it up ! It was great the way u used fans for a simplified visual.
i agree with @andypeak8151 i have been around a long time built many parts of cars and racing, and that was the best explanation of Torque Converter & I was even being taught years ago & learning transmission on a top team to be a trans guy, on a 5000hp Top Fuel Dragster. I never had anyone explain in such a way, simplistic and with fans, great video. amazing what goes into a torque converter. last few statements were a plus.i will be looking over all your videos now. love learning and miss my car days from off road racing to IMSA to NHRA You gave me a rush to go get a race car and build understand and race again ;') Thanks for rejuvinating a man that just turned 60. Maybe a GT3RS to learn and run now ;') LOL Thanks again ;')
Fantastic video! I work at an auto salvage yard. I see those things all the time. All I knew about them is that
1. They are heavy
2. You think you got all the oil out.... BUT NOOOOOOO!! You didn't get all the oil out.
3. I'm tired of cleaning all the oil they spill.
4. I have always wandered how they worked and what was inside.
This was without any doubt the best explanation of this I have heard. Thank you. I now wont gloss over on this subject.
so I want to say that as a fellow mechanic and frequent you tube visitor i am highly impressed with your teaching skills and knowledge transfer processes and techniques. This is one of the coolest and more fun mechanical component explanations I have ever seen. I subbed and liked just now and I look forward to more from exploring your channel. Well done sir, this is truly well done and a gem of a mechanics video.
Brilliant explanation and an excellent practical analogy with the 2 fans. Great stuff!
One of the best explanations in UA-cam
You explain that in such a simple way to understand. Tyrone from Nassau Bahamas. Thank you.
You could also explain that the the moment you touch the brakes, the clutch releases by cutting oil pressure to the clutch. You can actually see it happen. Next time you are driving up a hill and the clutch is locked, touch the brakes without releasing the gas pedal. You can see the RPMs rev up a little.
Based on your comment, I'd like to pick your thoughts on a transmission issue that I picked up on my car not too long ago... I don't know who could give me a perspective on my small dilemma. So if you allow me, I'd share with you...
I drive a BMW E46 330d auto transmission
Man I had a hard time figuring out how and what the stater does you did such a great job here even i get it now. Thanks!!!!
Powerful session
It has taken me more than 20 years to get a clear understanding of automatic transmission operation.
Thank you.
@ 7:25. I thought the flow was the other way around from the stator...The flow from the impeller to the turbine is from the outer radius of the impeller to the outer radius of the turbine...and then the fluid flows from the inner radius of the turbine, through the stator back into the impeller.
Felix Chien to
Exactly! Change in direction occurs then, adding more swirl to the fluid going back to the impeller, hence multiplying torque.
This is the best explanation of how a torque converter works that I've seen. I'm still mystified by the workings of a transmission, but this really helped.
Excellent, thank you sir. Great explanation of the Torque Converter Clutch.
That fan demo was genius , good job for explain this , thanks bro ;-)
Dude, awesome explanation. Huge thanks for the huge effort!!
...man, it is so crazy what engineers came up with, isn't it... X_X
Greetings from Germany!
for not having a program or CGI to help u show what ur talking about. u did a great job explaining how a torque converter works. showed me something i didnt know. but wanted to know. thank u for ur time in making this video.
Eric is awesome.
Maybe not, but there aren't many as informed and skilled at explaining as Eric. He's the A-Team.
Knowing the material is one thing - the ability to entertain and teach is another gear. It''s automatic for ETCG. His fluid, impelling arguments were clutch. Good job!
Thank you...thank you...you're too kind...try the veal; tip your waitress; I'm here all week...
Eric, this is the best video ever..very useful data.
You had me thinking pretty good explanation until you started to explain how the stator multiplied torque. Your explanation missed the mark. 1) the stator redirects fluid coming from the turbine as it reenters the impeller. Not the other way around as you stated. 2) The stator is not just for breakaway in fact the torque converter varies the torque that it multiplies over a large range of driving conditions during which time the stator is locked. 3) The stator doesn't start to free spin until the turbine is rotating at approximately 90% of the impleller rotational speed. 4) Your first statement about the stator OWC stating that it was a roller clutch but then you called it a sprag. Roller and Sprag One Way Clutches (OWC) perform the same task but accomplish it differently. One uses rollers and the other uses sprags. Stators always use roller OWC's. 5) Modern day vehicles can and do often start to pulse the TCC on as early as in 2nd gear. This would not be 100% engagement but partial engagement. Even my 94 Acura with a 4sp will 100% lock up the converter in 3rd gear. So the transmission does not have to be in high gear before the TCC will apply. Unfortunately I would not be able to recommend this video to my students for educational purpose with your stator & TCC explanation as is. If you want to be accurate I suggest you edit this video and re-post.
Maybe you could make your own video and show it to your student.
It's on my list of videos to do.
Thank's for this post, I thought for a while I had missunderstood the function of the stator completely.
this was great!! i absolutely appreciated someone finally explaining this well.. Thank you!!
Im not a mechanic. Spent most of my life in electronics, but you made this video very interesting. Thank you, Sir. Great Job!
So that is one of the reasons you feel a "boost" off the line when you press both gas and brake at the same time in an automatic vehicle, and then let off the brake...
Your engine is at the stall speed, so the stator is multiplying torque, but the brakes are holding the vehicle steady. Release brake and feel the full power of that torque, but once moving the stator is no longer multiplying torque and you realize that your 97 camry actually does not have as much power as you wished it had XD
(Right?)
I think the take away from this video is the understanding why the repair of an automatic transmission is so much.
What I got out of it is an automatic transmission is a really complicated piece of equipment
Always wanted to know this.....good explanation.
Dude! The fan analogy was genius! That’s the first video I saw that actually brought me close to understand how the torque converter works
The stator explanation completely lost me. After some further research, I found that the explanation was inaccurate. The stator alters direction of the centre return flow from the turbine, not the outward flow from the impeller. Because of the way the turbine blades are made up, the return flow from the turbine is opposite from the direction of the impeller rotation and that would oppose impeller rotation. The stator comes in and redirects the fluid flow to match the direction of the impeller blades. The torque multiplication occurs when the force of the fluid hits the impeller blades in such a way that it assists with engine rotation. The stator starts rotating when the impeller and turbine start approaching the same speed. Hope this helps anyone else who also got lost.
This!
ua-cam.com/video/bRcDvCj_JPs/v-deo.html
Prevented me from having to type all of this. Glad I read the comments before saying the same thing.
Relax Rocco there was a whole lot of fantastic information in this video
My. Nissan feontier. 2004. 2.4. The parking dont. Work. But. Old. The. Other gers. Work good. Wat. The problem. Kant. Be.
ACTULLY THE WAY IT WAS EXPLAINED i SAW YOUR EXPLAINATION AS THE SAME.
If I had a dollar for everything I knew about torque converters, I'd owe someone a lot of money.
While you're answering these sort of questions, maybe you could cover:
Dark matter/dark energy
The meaning of life
Women
thanks
rofl , rofl , and rofl ... dark matter and the meaning of life we got but women , yeesh , only God fully understands them yet His 1st recorded words to a woman was "woman, what have you done? " :P
haha!
Yea, Eric I like to know about the complexity in women mechanism as well :). I felt like you could explain them as well when I hear you explaining things the way you explain things. All I know about women is, they are the most difficult or impossible to understand in the entire universe. And yet I still love her with all my heart even without understanding her. Speak to me God?
Lol
😂🤣
im a manual guy here, but i've always wondered how auto transmissions work
Me too, this video doesn't really make me want to convert either xD
Automatic gears are far to complex to be reliable , Simplicity = Less Brake downs
niceguy60 dsg is the best of both worlds :)
I've been a manual guy since 1998. Now, I drive an auto mustang and I'm ust fine with it.