Basic torque converter operation

Рет қаралды 64,066

Күн бұрын

This video is part four of a seven part series covering automatic transmission basics. This video covers the basics in torque converter operation, including the names of the parts, description on how a torque converter clutch operates, how the torque converter multiplies torque, how fluid flows through the torque converter, and a few different configurations of modern converters.

Пікірлер: 86

@evontrizmo 3 жыл бұрын

I'm sure this is the only video made that explains all 3 types of converter clutch setups with an easy to understand description of the fluid coupling inside the converter. Highly underrated channel! Much better than any of the other more popular channels on KZfaq hands down.

@siuautomotive 3 жыл бұрын

Wow, thanks!

@ronhollenbeck Жыл бұрын

I had to watch quite a few torque converter videos before I found one that showed which direction they turned. Great job.

@dennisfengcanada 3 жыл бұрын

This instructor knows what students dont know.

@jameslewis1175 2 жыл бұрын

I finally understand the mysterious torque converter. Thank you so much.

@mathewrobinson9399 Жыл бұрын

This is hands down the best description of a torque converter I’ve ever seen.

@kevinagnew6878 Жыл бұрын

I Agree with you 💯 👍

@sreeramraj4791 3 жыл бұрын

This Videos deserves more likes, comments.. Thanks a lot for explaining it very clearly with physical parts and your analogy.. GREAT WORK :)

@markniblack7160 Ай бұрын

Best explanation I've ever seen (and I've watched a lot of them!). Finally understand it!

@amanorebenezer1704 2 жыл бұрын

you are a very good teacher I now understand how the torque converter operates thanks for the good lectures

@jamescollins5073 Жыл бұрын

Awsome video, what would be even better is explaining torque converter shuddering. My 6F50 in my 2007 Lincoln MKX shudders a lot.

@jagannathghimire3039 Жыл бұрын

Great clip.. 👍👍😊 Probably the best episode as far as Torque Converter is concerned.. 👍 Very elaborated and very informative.. 😄 Thanks friend

@kevinagnew6878 Жыл бұрын

Outstanding explanation of the transmission torque converter

@steveedward5074 Жыл бұрын

This is very informative and helps make sense how a transmission works. They are the big mystery in an auto to me. Thanks

@armenlock9619 8 ай бұрын

Love this video - so well done. Thank you!

@altonrowell7854 2 жыл бұрын

Interesting video. Thanks for the information.

@DannerPlace 9 ай бұрын

Very good video, thanks for making it available.

@TheEdudo Жыл бұрын

much grateful for your class

@siyad9993 3 жыл бұрын

This is a nice video, thanks 😊

@obaidaamin7994 2 жыл бұрын

Thanks! Lots of useful information and easy to understand ..😊

@d-s-ll2378 Жыл бұрын

TC has 3 connections to the AT side. 1st is the pump driving tube sticking out from TC case(often with 2 notches or 2 tabs at its end),which match to 2 tongues or 2 tabs on the pump rotor in the front of the AT. 2nd is the bigger female spline in the TC stator one way clutch hub, which meshes with stator tube male splines from the back cover of the AT pump(motionless with AT case). 3d is the small female spline in the center of TC turbine, which drives the male spline on the end of the input shaft that sticking out from the AT.

@georgejones7358 8 ай бұрын

That was a great class thank you.

@W.Khairi 2 жыл бұрын

Great education thanks a lot.

@MrRainbowrooster Жыл бұрын

Great video!

@UnrealNarcissist Жыл бұрын

You are a great teacher

@devkumar-gk2bo 4 ай бұрын

Thank you..Very Nice explanation ❤

@M7KD Жыл бұрын

Thank you. God bless you

@madusankaduwage8917 2 ай бұрын

Great explanation ❤❤❤❤

@stevo450ify 3 жыл бұрын

I wish you were my A/T trans lecturer!

@francisdsouza955 8 ай бұрын

Appreciate you Sir 🎉🎉...what a knowledge...Great...thanks in tons ❤😊

@johnnjuguna9205 8 ай бұрын

Great insight

@rustamabdullayev1019 10 ай бұрын

Thank you very much!!!!!!!!!!!!!

@oldskoolfunk71 2 жыл бұрын

Thank you for your work . Can we use a 4L60E from a 4.8L engine and put it in on a 5.3L engine? do we need to flash/ reprogram? 2006 4.8L trany on a 2000 5.3L Silverado extended cab

@raviautoscanning 8 ай бұрын

Thank you

@cliffcampbell8827 Ай бұрын

The fluid in the torque converter...what keeps it flowing? Why doesn't the fluid get slung to the outer most part (the metal doughnut)

@BehzadEghtesad Жыл бұрын

Do old 1970s torque converters have stators and clutches too? I have a Mercedes 250 1972, which drives fine while the cold engine when getting hot drives fine except at stop signs likely the torque converter is locked and the engine wants to die because tranny is engaged. I have to rise RPM to not die. wondering if TC can be locked. Thank you.

@baratrahmani4023 Жыл бұрын

god bless you thanks

@JDMreck 3 жыл бұрын

Aye friend I recently swapped the engine on my sisters 04 scion and wen I put the bolts into the torque converter was a little tight well I left it like that started the car drove it for a couple blocks i had to floor it so it can move at a stop and after that didn't wanna move forward or reverse what can it be?

@cliffcampbell8827 Ай бұрын

Why doesn't the fluid inside the torque converter get flung to the inside diameter of the big metal doughnut and stay there?

@coreypuck3295 2 ай бұрын

Tell me again about how it's normally welded together. 😊

@mervynmaharaj1149 Жыл бұрын

Good day is a cvt trans converter is d same as a non cvt one for same type of vehicle but differnt model tnks

@omarazizs 11 ай бұрын

In ideal condition when lock up is engaged input shaft rpm should be equal to engine rpm?

@mervynmaharaj1149 Жыл бұрын

Good day is a cvt trans converter is d same inside as a non cvt type tnks

@hd221813 2 жыл бұрын

I would be glad if you could answer the following question: going down a very steep slope with a 4x4, in first gear (let's suppose it has a TH400), to obtain the maximum level of engine braking, does the torque converter stator rotate way faster than the engine (due to its one-way clutch and to the way the ATF touches its blades) or does the torque converter stator rotate at roughly the same speed of the engine? I mean: engine speed 3,000 rpm, torque converter stator speed 6,000 rpm, is it possible?

@nevek3647 Жыл бұрын

The stator is splined to the case and rotates at the engine rpm unless the stator is free spinning. In your scenario, the wheel rpm is kept low with low gear ratio to use engine braking. Assuming a steep downhill, you are probably reaching the “stall speed” of the engine, or 3000 rpm in your example. But your wheel speed and therefore your turbine speed is well below the impeller speed. The one way clutch of the stator will be engaged and the stator will not free spin and rotate at the impeller speed. The only time the stator speed will exceed the impeller speed is during the rotary phase when the turbine has come up to speed. This is when the ATF might hit the back of the stator blades to allow free spin of the one way clutch where stator spin will exceed the impeller speed.

@bxu789 3 ай бұрын

Trying to understand why my transmission is slipping at low speed only. Still not clear

@rubendamian8636 2 жыл бұрын

Greath!

@424io Жыл бұрын

Front engine,, rear wheel drive.. Fluid is forced in the impeller centrifugallyfrom the interior of the impeller to the exterior of the impeller. Fluid traverses into the front of the vehicle, into the direction of the engine/crankshaft, away from the brake lights. The fluid runs into the turbine at the exterior of the turbine down into the interior of the turbine. The fluid Traverses towards the rear of the vehicle, away from the engine, The fluid is now moving to the stator. The stator brings the fluid towards the interior of the impeller completing the toroidal flow of the viscous fluid, transmission oil.

@AlanRWynne Жыл бұрын

What is your advise about gearing down with one of these new types of torque convertors? Advise on the internet seems to be that we should use the breaks to slow down in an automatic, but some people still say it is fine to slow down using the gears?

@siuautomotive Жыл бұрын

Do you mean like manually shifting to lower gears for engine braking? I don’t think the converter really minds that. Many vehicles have tap shifters to allow you to control the gear you’re in, so it’s not unexpected or uncommon to have the converter drive the engine during braking.

@tenzinthinlley2330 Жыл бұрын

@@siuautomotive when coming to a red light in my automatic, is it "safe"(aka not weardown parts unnecessarily) to take my feet of gas and only apply brakes when the car has slowed down and im getting close to the red light. eg: while going 50mph, when im about to approach a red light, id take my feet of the gas when i'm at 50yards away from the red light and apply the brakes in the last 10yards. does this practice wears down my car parts faster?

@oscard.porcayo5802 3 жыл бұрын

Very educational video!!! thanks.... I work at exedy... :)

@siuautomotive 3 жыл бұрын

Cool! I'm putting together at transmission with Exedy frictions as we speak!

@seraf9143 Жыл бұрын

Does the clutch engage strictly by fluid pressure, based upon the specific engine RPM? Or is it electronically controlled by redirection of fluid to special port (s) that pressurizes the clutch?

@user9005 11 ай бұрын

The engine computer uses a solenoid inside the transmission to send fluid pressure back into the converter input shaft to lockup the clutch.

@rutchelllinuag9637 2 жыл бұрын

Hi sir.thes may loader tcm 50b michigan clark transmission problem

@bartsarton2212 3 жыл бұрын

Would I be able to put a torque converter with a lock up clutch in a 1965 2-speed Powerglide?

@siuautomotive 3 жыл бұрын

I don't think so, because there are no oil circuits or solenoids to control the fluid for the powerglide. But who knows (not I), someone might make a kit.

@rogermosqueda7814 3 жыл бұрын

How does oil gets into the torque converter? is it through the input shaft?

@siuautomotive 3 жыл бұрын

Yes, in tcc release mode it travels through the tip of the input shaft to feed the converter. In tcc apply mode, it enters between the input shaft and stator support shaft

@thisisyourcaptainspeaking2259 3 жыл бұрын

If the stater is freewheeling due to one-way clutch failure, wouldn't the "stall speed" be too high?

@siuautomotive 3 жыл бұрын

That’s a common assumption, but the stator, when locked during torque multiplication, redirects the fluid in the same direction as engine rotation. That extra “push” is what allows the engine speed to climb higher. If the stator always freewheeled, it would never get that extra push.

@thisisyourcaptainspeaking2259 3 жыл бұрын

@@siuautomotive Yes, makes perfect sense! Not sure why I had that backwards but thanks for confirming.

@tariqalmaashani877 Жыл бұрын

How the turbine side engages and disengages to input shaft at idle?

@siuautomotive Жыл бұрын

I’m not sure I understand the question. The turbine is splined to the input shaft. It’s always connected.

@424io Жыл бұрын

Clutch is in dis/action

@ebperformance8436 3 жыл бұрын

My stator gear rotated clock wise and counter clock wise.....is this normal. My car made weird noises in reverse and drive, leaked really bad when in park, and had very bad acceleration. Thanks for the video.

@siuautomotive 3 жыл бұрын

When you try to move the stator with your fingers or a stator support in your hand, it will rotate in both directions since you are holding onto the inner race. You should feel the one-way clutch slip in one direction and grab the stator in the other direction. It could be the source of poor acceleration, but it shouldn’t cause a leak unless the converter internals are coming apart and it tore up the hub or seal.

@ebperformance8436 3 жыл бұрын

@@siuautomotive the inner gear” behind the stator is moving around” which explains why the torc converter was hard to get on. When I pulled the engine, the seal was in good shape, the leak was coming from under the bell housing.....I took it as a bad seal but there was no indication it was worn out. If I had a tool.... a Could’ve did a pressure check, I’m gonna replace the torc converter for a peace of mind.....thank you for the speedy reply.

@ebperformance8436 3 жыл бұрын

@@siuautomotive ok did another test and the stator was fine....the old seal might’ve been worn....I never really checked it out before replacing.

@musical9745 2 ай бұрын

can I replace A231 250 05 02 with A222 250 05 02 torque converter

@rmkilc 2 жыл бұрын

Just had the one way roller bearing go out after camming and tuning my engine and yeah, my stall speed was only 1000 rpm.

@siuautomotive 2 жыл бұрын

That's a bummer! Probably a little slower off the line, lol!

@rmkilc 2 жыл бұрын

@@siuautomotive And a lot of rattling and squealing! It sent metal chunks from the springs in the one way roller bearing throughout the transmission so I ended up taking it apart and cleaning everything while I had it out to put in a new torque converter. I had just rebuilt the transmission a few months ago so taking it apart again was a breeze.

@fritz1990 2 жыл бұрын

Who invented the torque converter?

@siuautomotive 2 жыл бұрын

According to LuK, the torque converter was invented in 1905 in Stettin, Germany, by Dr. Hermann Föttinger of the Vulcan Ship Yards, the torque converter was originally a steam turbine drive for a ship propeller. www.schaeffler.com/remotemedien/media/_shared_media/08_media_library/01_publications/schaeffler_2/symposia_1/downloads_11/01_Torque_converters.pdf

@rufelestrada9791 4 ай бұрын

God you drone on forever

@telayusuf5117 Жыл бұрын

Good day everyone. Am currently in my 400 level (Automotive Engineering) but am still finding it difficult to understand Automatic transmission. Please any guide from an expert? Someone I can be communicating with anytime am lost and guide me through. Thanks to SIU😍😍😍

@hejmirq Жыл бұрын

Hello! any idea where this sound come from? kzfaq.info/get/bejne/jbqSeJVyvs7Mlmw.html The transmission has been rebuilt, torque converter as well. there was no such sound before. Thanks!

@424io Жыл бұрын

Illinois

@GARAGEMVIDIGAL Жыл бұрын

please put subtitles in portuguese

@steveedward5074 Жыл бұрын

Maybe you could convert a transmission into a pressure cooker? If you take out the guts. Not really.

@424io Жыл бұрын

There's no solid connection, there is a fluid connection There is a fluid coupling

@dwaynefick6947 2 жыл бұрын

Omg

@persischangwe3102 2 жыл бұрын

Can a bad torque converter stop a car from moving forward and reverse?

@deeremeyer1749 19 күн бұрын

Converters are TRANSMISSION COMPONENTS and are INTEGRAL to the transmission and one is useless without the other. A converter is not to an automatic - or powershift - transmission what a clutch is to a manual. A manual can "work" without a clutch. A clutch can be used to 'limp home" a manual trans not completely "blown". "Building" an auto without replacing the converter AND "external" components like coolers may be a "build" but it is not a "rebuild:.