Some is missing - SpeedKar did a fair job (he always does excellent jobs) here, but the way the torque converter multiplies torque at stall is not explained here for brevity I'm sure, so you will have to see several explanations to piece the exact theory/mechanism together.
I know this is 5 years old, but I've watched several videos (mostly animations or way oversimplified explanations) and it never clicked for me, this video finally made it make sense
Really cool, i always hear about this but nobody explain that it is, i tried to watch a lot of videos about it and just made me more confuse, you're the only one that helped, thanks
Wonderful, even if faster than I could always grasp. (My fault, not yours.) Watching the video, I'm again reminded of man's amazing ingenuity. Also, that electric cars like the Tesla or Bolt have no need for any of this magic.
one of the best torque converter explainations i"ve seen, but there is one error, at the 5 min mark you say the fluid that goes all around the back of the clutch locks up the torque converter, I think incorrect, that fluid in fact keeps the clutch away from the back plate! The solenoid when applied stops that fluid flow, and the pressure already developed by the blades is what puts pressure on the clutch onto the back plate. But really top notch video, better than those fancy ones done by big companies.
so is transmission fluid the same as the fluid used in the torque converter? my old corolla got transmission fluid replaced at 100K. I don't know if that goes inside the auto transmission gear box, the torque converter or both
Very nice, but you should discuss torque converter shudder. Sometimes there is a bit of slip designed into lockup too. If the fluid is worn you get shudder, depending on the application.
Yes, modern ATF has friction modifiers. It is similar to limited slip additive. Dr Tranny instant shudder fix can help sometimes. It used to be a big problem on Fords. I saw some guys on the Lexus GS forum have the issue. Not common, but it happens.
I’m experiencing some shudder on my 2011 RX350 and I’m thinking it’s the torque converter. I had a fluid exchange about 2k miles ago but it’s still there. Hopefully, it’ll diminish over time because I don’t really want to replace it. I have 262k miles on the vehicle so far
@@watso014 Some misfires are directly related to ignition. Modern cars have a pulse strategy and it requires clean torque from the engine. Was a very big issue on Ford Cars years back. Touch the brake pedal, that unlocks the converter.
Are the fins / vanes in there welded anywhere or are they all just bent? It looks ilke the reinforcement in the center just has the little tabs bent down.
Hey, where did you find my travel toothbrush? I've been looking for it everywhere! Great explanation and video! How does act on deceleration? Does the slippage allowance prevent damage to the transmission/engine?
Great clarifying and summarizing pro. Here's a stupid question do the lock up clutch affected by coolant water .u gusted it (my trans oil mixed with coolant) and if it doesn't could it be saved by traditional flushing.
Question: Do AT pump rotates when "N" is selected since the AT pump it's connected to the stator of the Converter and not the Housing(rotating at engine RPM)?
Which is better dsg gearbox or torque converter. Coz I was planning to buy polo gt tsi, earlier it had dsg gearbox now it has torque converter combined with a three cylinder tsi engine compared to four cylinders. I know dsg is a better and advanced gearbox but now torque converter really bothers me. Please make a video comparing both the gearboxs.
What is the sign that converter is going bad?Once in a while my car hesitates specially when I'm on a third gear change on a 5 speed Honda automatic transmission.The power is delayed and like slipping on the third gear.I had this rebuild 2 years ago for $2,000 and put 15,000 miles on it.Can I just ignore this?
Is it the tc locked when you accelerate in full throttle? As i understant it isn't but why ? Logic tells me that when you want full acceleration you do not want any slippage..
+Adrian Tc no the TC locks when your cruising If it locked during acceleration it might stall the engine or burn too much rubber. This is why manual cars used to be faster than automatics because of the slippage.
speedkar99 locking during full throttle acceleration in 4th gear from 80 kmh (just an example) won t burn any rubber, and the engine will not stall (as it doesnt in a manual transmission).. so i still don t understand the logic behind this.
In the process of doing a transmission fluid flush I mistakenly drained out a little more than I had put in and caused the pump to run nearly dry for a few seconds (less than 5 seconds). I know this because it stopped coming out of the drain hose in a full stream but rather spitting it out. I immediately turned the car off and add more fluid. Would this have damaged the transmission in just a few seconds? Of course it was in park at the moment it was being drained/refilled.
I didn’t understand, from all that, if the trans. fluid exits the torque converter again, & is it a 1 direction process, aside from all those direction diverts, - MEANING in partiqular, if someone does a DIY trans flush does that flush out torque conv.?, hmnnn?🤔
The inside of a torque converter is beautiful. Looks like art.
I think I need to watch this a few more times to wrap my head around all the info and visualize as you explain.
Some is missing - SpeedKar did a fair job (he always does excellent jobs) here, but the way the torque converter multiplies torque at stall is not explained here for brevity I'm sure, so you will have to see several explanations to piece the exact theory/mechanism together.
best car youtuber by far
+Odddit Haha maybe, thanks for the encouragement.
ya its really
@@speedkar99 definitely one of the best..keep the good work
I know this is 5 years old, but I've watched several videos (mostly animations or way oversimplified explanations) and it never clicked for me, this video finally made it make sense
There is no best video of torque converter explanation video on TH-cam.
Thanks
Fantastic description. Very clear and concise.
Thanks
You are the best auto technician on TH-cam
Thank you for that! I’ve been a Toyota tech for over 15 years and only just realized I don’t know how a torque converter does it’s magic.
Best explanation I can find on TH-cam.
Thanks I'm glad it helped
Really cool, i always hear about this but nobody explain that it is, i tried to watch a lot of videos about it and just made me more confuse, you're the only one that helped, thanks
Man I've been twistin' wrenches for over forty years and had always planned to tear one of these suckers apart to see that damn clutch; thank you.
Awesome video! You have a great talent in explaining things efficiently
Glad you like my video style
Great video! I was having a hard time, but this quick video helped clear things up
Wonderful, even if faster than I could always grasp. (My fault, not yours.) Watching the video, I'm again reminded of man's amazing ingenuity. Also, that electric cars like the Tesla or Bolt have no need for any of this magic.
+Steve Kohn thanks
And yes its quite a complex system that I compliment those who designed it many years ago
This video deserves more likes
I understand now, thanks toothbrush man
You welcome
one of the best torque converter explainations i"ve seen, but there is one error, at the 5 min mark you say the fluid that goes all around the back of the clutch locks up the torque converter, I think incorrect, that fluid in fact keeps the clutch away from the back plate! The solenoid when applied stops that fluid flow, and the pressure already developed by the blades is what puts pressure on the clutch onto the back plate. But really top notch video, better than those fancy ones done by big companies.
Thanks, you may be right
Excellent explanation and demonstration.
3:25 how do you know how much fluid goes in the converter
looks so clean on such an old car
so is transmission fluid the same as the fluid used in the torque converter? my old corolla got transmission fluid replaced at 100K. I don't know if that goes inside the auto transmission gear box, the torque converter or both
+protoslashwyl Yes its the same fluid. But when you drain, your not draining the torque converter.
Great video as usual.
+Martin Evan thanks.
Excellent explanation and video! Thanks!
You are welcome
Well done, best explanation I've heard. Thanks.
Good day Boy that is complicated especially with lock up Thanks
You sr are gifted.. great video
Thank you!
Great video content. Well done.
Great video 👍
Thank you
Hats off man!!!
Was it difficult to cut the converter apart? Great Vidya as always man. You have to love Toyota's 6 bolt converters too.
+John it did take a while and a lot of blade but I got it eventually.
The smell of bullshit and progress at the same time!
Very nice, but you should discuss torque converter shudder. Sometimes there is a bit of slip designed into lockup too. If the fluid is worn you get shudder, depending on the application.
+alb12345672 thanks, I didn't know about that. I heard some newer accord and Camrys were having that issue.
Yes, modern ATF has friction modifiers. It is similar to limited slip additive. Dr Tranny instant shudder fix can help sometimes. It used to be a big problem on Fords. I saw some guys on the Lexus GS forum have the issue. Not common, but it happens.
I’m experiencing some shudder on my 2011 RX350 and I’m thinking it’s the torque converter. I had a fluid exchange about 2k miles ago but it’s still there. Hopefully, it’ll diminish over time because I don’t really want to replace it. I have 262k miles on the vehicle so far
@@watso014 Some misfires are directly related to ignition. Modern cars have a pulse strategy and it requires clean torque from the engine. Was a very big issue on Ford Cars years back. Touch the brake pedal, that unlocks the converter.
Excellent video! Thank you!
engineering marvel . exquisite
Awesome
Crazy good. You keep mentioning "fluid" or "oil" are you referring to transmission fluid in the torque converter?
+AutOdometer yes. Transmission oil or fluid. Same thing.
Theres still some thing in that corrolla OMG😲
+pétri pat there's tons of parts from that corolla I still have sitting...
thank you for explaining this so precise.......awesome!
Very good details and explanation! Thank you!
great video, thanks
Awesome thanks
Excellent. Now I get it
what is the proper face clearance between impeller and turbine ....please ?
Pretty good, thanks
You are the best!!!
Are the fins / vanes in there welded anywhere or are they all just bent? It looks ilke the reinforcement in the center just has the little tabs bent down.
+John Hmm I didn't pay attention to how they were attached, I assume they have to be welded to transfer that much torque.
Hey, where did you find my travel toothbrush? I've been looking for it everywhere!
Great explanation and video! How does act on deceleration? Does the slippage allowance prevent damage to the transmission/engine?
On deceleration the torque converter unlocks so it doesn't engine brake
@@speedkar99 thanks for the reply! By unlocks, you mean the clutch unlocks, right? The impeller and turbine spin freely but at different speeds?
How is the oil flowing through the torque converter? I see only one way at the shaft itself, but where does it come out?
Great clarifying and summarizing pro. Here's a stupid question do the lock up clutch affected by coolant water .u gusted it (my trans oil mixed with coolant) and if it doesn't could it be saved by traditional flushing.
Flush as much as possible. Any water could cause corrosion
As simple as it can be said.
Simple is my style
Very informative and practicle video.
+Kushantha Weragama thank you
Question: Do AT pump rotates when "N" is selected since the AT pump it's connected to the stator of the Converter and not the Housing(rotating at engine RPM)?
+Petar The pump always rotates. See my transmission video for details
Cool. So if my transmission is experiencing slippage all I need to do is replace the torque converter due to the clutch plate being worn down.
I like your video
Which is better dsg gearbox or torque converter. Coz I was planning to buy polo gt tsi, earlier it had dsg gearbox now it has torque converter combined with a three cylinder tsi engine compared to four cylinders. I know dsg is a better and advanced gearbox but now torque converter really bothers me. Please make a video comparing both the gearboxs.
Does anything in the torque converter still spin when the vehicle is turned off?
Do aisin torque converter AQ250 gearbox is reliable as used in volkswagen cars??
Bro you are so awesome
What is the sign that converter is going bad?Once in a while my car hesitates specially when I'm on a third gear change on a 5 speed Honda automatic transmission.The power is delayed and like slipping on the third gear.I had this rebuild 2 years ago for $2,000 and put 15,000 miles on it.Can I just ignore this?
Honda's have inherit problems with the transmissions. The 2nd gear would burn out or overheat.
Is it the tc locked when you accelerate in full throttle? As i understant it isn't but why ? Logic tells me that when you want full acceleration you do not want any slippage..
+Adrian Tc no the TC locks when your cruising
If it locked during acceleration it might stall the engine or burn too much rubber. This is why manual cars used to be faster than automatics because of the slippage.
speedkar99 locking during full throttle acceleration in 4th gear from 80 kmh (just an example) won t burn any rubber, and the engine will not stall (as it doesnt in a manual transmission).. so i still don t understand the logic behind this.
So then how does the term (over drive) fit into this concept
You know your stuff..😊😮
that really helped
Thanks
In the process of doing a transmission fluid flush I mistakenly drained out a little more than I had put in and caused the pump to run nearly dry for a few seconds (less than 5 seconds). I know this because it stopped coming out of the drain hose in a full stream but rather spitting it out. I immediately turned the car off and add more fluid. Would this have damaged the transmission in just a few seconds? Of course it was in park at the moment it was being drained/refilled.
No
直观，清晰，但是要多看几遍才能慢慢加深理解。
How automatic gearbox engage to the gear?
It has an oil pump shaft and inside there's the torque converter Shaft
@@speedkar99 so it’s the oil pushes the clutch pack to change gear?
So that means there is a clutch inside the transmission,right?
I didn’t understand, from all that, if the trans. fluid exits the torque converter again, & is it a 1 direction process, aside from all those direction diverts, - MEANING in partiqular, if someone does a DIY trans flush does that flush out torque conv.?, hmnnn?🤔
Amazing
One more thing that isn't there in an electric car. Hope they become practical for me soon.
+wholeNwon true, emerging technology.
this is an awesome video. also, i want that fucking toothbrush.
Thanks. Go steal a toothbrush from your brother
Well done
+انا من الموصل عاشت الذهبيه و الجيش والحشد والشرطه thank you
TH-cam don't put ad in hindi
Good
Looks like a jet engine inside.
Turbine
I still don't get it lol😅 ? I need to watch this several times,
Did you sell toyota Corolla? And i play instagram
+KennyTheFoxySFM1 - FNAF and MC Corolla's body has been scrapped but the guts remain.
I just want a doughnut.
+123kspencer a spare wheel for your car?
Glazed, powder or chocolate?
#torus #toroidal #thor #
This is why I could never be an engineer. I'm nowhere near being smart enough to think up how this should work and be designed. 🤣😕
Loose the toothbrush.👎
Use a hot dog.👍
Then I'd have a different type of audience
@@speedkar99 Hey...🤔, I never thought about that. Stick with the toothbrush😉👍.
Another excellent video!
Thanks
what is the proper face clearance between impeller and turbine .....please ?
what is the proper face clearance between impeller and turbine...please ?
+rodelio roa that I'm not sure.
Oil viscosity in the torque converter directly administers face clearance parameters